pixel art之 hqx 算法

在去年的时候，偶然看到hqx算法。

一个高质量的插值放大算法。

与双线性插值等插值算法相比，这个算法放大后对人眼保护相对比较好。

没有双线性插值看起来模糊，固然，也抽空把算法简单优化了一下。

官网及代码：

https://web.archive.org/web/20131205091805/http://www.hiend3d.com/hq2x.html

https://storage.googleapis.com/google-code-archive-downloads/v2/code.google.com/hqx/hqx-1.1.tar.gz

维基百科：

https://en.wikipedia.org/wiki/Hqx

不够这个算法写得贼恶心，并不适用于学习。

贴上维基百科上的demo效果对比图。

  

 

 

 

博主只是简单地把其中的放大两倍的算法，优化了一下，极大地提升算法的速度。

废话不多说，贴上代码：

/*
//(c1*3+c2) >> 2;
#define Interp1(c1, c2) Interpolate_2(c1, c2, 3, 1, 2);
//(c1*2+c2+c3) >> 2; 
#define Interp2(c1, c2, c3) Interpolate_3(c1, c2, c3, 2, 1, 1, 2);
//(c1*7+c2)/8;
#define Interp3(c1, c2) Interpolate_2(c1, c2, 7, 1, 3);
//(c1*2+(c2+c3)*7)/16;
#define Interp4(c1, c2, c3) Interpolate_3(c1, c2, c3, 2, 7, 7, 4);
//(c1+c2) >> 1;
#define Interp5(c1, c2) Interpolate_2(c1, c2, 1, 1, 1);
//(c1*5+c2*2+c3)/8;
#define Interp6(c1, c2, c3) Interpolate_3(c1, c2, c3, 5, 2, 1, 3);
//(c1*6+c2+c3)/8;
#define Interp7(c1, c2, c3) Interpolate_3(c1, c2, c3, 6, 1, 1, 3);
//(c1*5+c2*3)/8;
#define Interp8(c1, c2) Interpolate_2(c1, c2, 5, 3, 3);
//(c1*2+(c2+c3)*3)/8;
#define Interp9(c1, c2, c3) Interpolate_3(c1, c2, c3, 2, 3, 3, 3);
//(c1*14+c2+c3)/16;
#define Interp10(c1, c2, c3) Interpolate_3(c1, c2, c3, 14, 1, 1, 4);
*/

#define MASK_2     0x0000FF00
#define MASK_13    0x00FF00FF 
#define MASK_ALPHA 0xFF000000


#define    rgb_to_y( c)   ((19595 * RED((c)) + 38470 * GREEN((c)) + 7471 * BLUE((c))) >> 16)


/* Interpolate functions */
 unsigned int Interpolate_2(unsigned int &c1, unsigned int &c2, int w1, int w2, int shift)
{
    if (c1 == c2) {
        return c1;
    }
    return
        (((((c1 & MASK_ALPHA) >> 24) * w1 + ((c2 & MASK_ALPHA) >> 24) * w2) << (24 - shift)) & MASK_ALPHA) +
        ((((c1 & MASK_2) * w1 + (c2 & MASK_2) * w2) >> shift) & MASK_2) +
        ((((c1 & MASK_13) * w1 + (c2 & MASK_13) * w2) >> shift) & MASK_13);
}
 unsigned int Interpolate_3(unsigned int &c1, unsigned int &c2, unsigned int &c3, int w1, int w2, int w3, int shift)
{
    return
        (((((c1 & MASK_ALPHA) >> 24) * w1 + ((c2 & MASK_ALPHA) >> 24) * w2 + ((c3 & MASK_ALPHA) >> 24) * w3) << (24 - shift)) & MASK_ALPHA) +
        ((((c1 & MASK_2) * w1 + (c2 & MASK_2) * w2 + (c3 & MASK_2) * w3) >> shift) & MASK_2) +
        ((((c1 & MASK_13) * w1 + (c2 & MASK_13) * w2 + (c3 & MASK_13) * w3) >> shift) & MASK_13);
}


void   hq2x_32(unsigned int *input, unsigned int *output, int Width, int Height, int Stride)
{
    int Channels = Stride / Width;
    if (Channels != 4) return;  
    unsigned int pixel[10]; 
    unsigned int gray[10]; 
    int step = 2;
    unsigned int dstStride = (Width * step)*Channels;
    int    dstWidth = (unsigned int)((Width * step)); 
    for (int y = 0; y < Height; ++y)
    {
        int    prevline = 0;
        int    nextline = 0;
        if (y > 0)
            prevline = -Width;
        if (y < Height - 1)
            nextline = Width;
        unsigned int* srcRowPtr = input + y*Width;
        unsigned int* dstRowPtr = output + (y<<1)*dstWidth;
        for (int x = 0; x < Width; ++x)
        {
            unsigned int&    pixel5 = pixel[5];
            unsigned int&    pixel2 = pixel[2];
            unsigned int&    pixel8 = pixel[8];
            unsigned int&    pixel1 = pixel[1];
            unsigned int&    pixel4 = pixel[4];
            unsigned int&    pixel7 = pixel[7];
            unsigned int&    pixel3 = pixel[3];
            unsigned int&    pixel6 = pixel[6];
            unsigned int&    pixel9 = pixel[9];
            unsigned int&    gray5 = gray[5];
            unsigned int&    gray2 = gray[2];
            unsigned int&    gray8 = gray[8];
            unsigned int&    gray1 = gray[1];
            unsigned int&    gray4 = gray[4];
            unsigned int&    gray7 = gray[7];
            unsigned int&    gray3 = gray[3];
            unsigned int&    gray6 = gray[6];
            unsigned int&    gray9 = gray[9];
            pixel2 = srcRowPtr[prevline];
            pixel5 = srcRowPtr[0];
            pixel8 = srcRowPtr[nextline];
            if (x <= 0)
            {
                pixel1 = pixel2;
                pixel4 = pixel5;
                pixel7 = pixel8;
            }
            else
            {
                pixel1 = srcRowPtr[prevline - 1];
                pixel4 = srcRowPtr[-1];
                pixel7 = srcRowPtr[nextline - 1];
            }
            if (x >= Width - 1)
            {
                pixel3 = pixel2;
                pixel6 = pixel5;
                pixel9 = pixel8;
            }
            else
            {
                pixel3 = srcRowPtr[prevline + 1];
                pixel6 = srcRowPtr[1];
                pixel9 = srcRowPtr[nextline + 1];
            }
            int    pattern = 0;
            int flag = 1;
            for (int k = 1; k <= 9; ++k)
            {
                gray[k] = (7471 * ((pixel[k] >> 16) & 0xFF) + 38470 * ((pixel[k] >> 8) & 0xFF) + 19595 * (pixel[k] & 0xFF)) >> 16; 
            }
            for (int i = 1; i <= 9; ++i)
            {
                if (i != 5)
                {
                    if (pixel[i] != pixel5)
                        pattern |= flag;
                    flag *= 2;
                }
            }
            unsigned int *    dstCurLine = &dstRowPtr[dstWidth];
            unsigned int *    dstCurLineNextPixel = &dstRowPtr[dstWidth + 1];

            switch (pattern)
            {
            case 0:
            case 1:
            case 4:
            case 5:
            case 32:
            case 33:
            case 36:
            case 37:
            case 128:
            case 129:
            case 132:
            case 133:
            case 160:
            case 161:
            case 164:
            case 165:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                break;
            case 2:
            case 34:
            case 130:
            case 162:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel4, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel6, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                break;
            case 16:
            case 17:
            case 48:
            case 49:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel2, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel8, 2, 1, 1, 2);
                break;
            case 64:
            case 65:
            case 68:
            case 69:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel4, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel6, 2, 1, 1, 2);
                break;
            case 8:
            case 12:
            case 136:
            case 140:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel8, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                break;
            case 3:
            case 35:
            case 131:
            case 163:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel6, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                break;
            case 6:
            case 38:
            case 134:
            case 166:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel4, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                break;
            case 20:
            case 21:
            case 52:
            case 53:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel8, 2, 1, 1, 2);
                break;
            case 144:
            case 145:
            case 176:
            case 177:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel2, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                break;
            case 192:
            case 193:
            case 196:
            case 197:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel4, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                break;
            case 96:
            case 97:
            case 100:
            case 101:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel6, 2, 1, 1, 2);
                break;
            case 40:
            case 44:
            case 168:
            case 172:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                break;
            case 9:
            case 13:
            case 137:
            case 141:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel8, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                break;
            case 18:
            case 50:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel4, 2, 1, 1, 2);
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                else
                    dstRowPtr[1] = Interpolate_2(pixel5, pixel3, 3, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel8, 2, 1, 1, 2);
                break;
            case 80:
            case 81:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel2, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel4, 2, 1, 1, 2);
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                else
                    dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel9, 3, 1, 2);
                break;
            case 72:
            case 76:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                else
                    dstCurLine[0] = Interpolate_2(pixel5, pixel7, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel6, 2, 1, 1, 2);
                break;
            case 10:
            case 138:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                else
                    dstRowPtr[0] = Interpolate_2(pixel5, pixel1, 3, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel6, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel8, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                break;
            case 66:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel4, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel6, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel4, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel6, 2, 1, 1, 2);
                break;
            case 24:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel2, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel8, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel8, 2, 1, 1, 2);
                break;
            case 7:
            case 39:
            case 135:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                break;
            case 148:
            case 149:
            case 180:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                break;
            case 224:
            case 225:
            case 228:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                break;
            case 41:
            case 45:
            case 169:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                break;
            case 22:
            case 54:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel4, 2, 1, 1, 2);
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                else
                    dstRowPtr[1] = pixel5;
                dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel8, 2, 1, 1, 2);
                break;
            case 208:
            case 209:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel2, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel4, 2, 1, 1, 2);
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                else
                    dstCurLineNextPixel [0] = pixel5;
                break;
            case 104:
            case 108:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                else
                    dstCurLine[0] = pixel5;
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel6, 2, 1, 1, 2);
                break;
            case 11:
            case 139:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                else
                    dstRowPtr[0] = pixel5;
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel6, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel8, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                break;
            case 19:
            case 51:
                if (gray2 == gray6)
                {
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel2, pixel4, 5, 2, 1, 3);
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 3, 3, 3);
                }
                else
                {
                    dstRowPtr[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                    dstRowPtr[1] = Interpolate_2(pixel5, pixel3, 3, 1, 2);
                }
                dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel8, 2, 1, 1, 2);
                break;
            case 146:
            case 178:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel4, 2, 1, 1, 2);
                if (gray2 == gray6)
                {
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 3, 3, 3);
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 5, 2, 1, 3);
                }
                else
                {
                    dstRowPtr[1] = Interpolate_2(pixel5, pixel3, 3, 1, 2);
                    dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                }
                dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                break;
            case 84:
            case 85:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                if (gray6 == gray8)
                {
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel6, pixel2, 5, 2, 1, 3);
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 3, 3, 3);
                }
                else
                {
                    dstRowPtr[1] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                    dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel9, 3, 1, 2);
                }
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel4, 2, 1, 1, 2);
                break;
            case 112:
            case 113:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel2, 2, 1, 1, 2);
                if (gray6 == gray8)
                {
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 5, 2, 1, 3);
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 3, 3, 3);
                }
                else
                {
                    dstCurLine[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                    dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel9, 3, 1, 2);
                }
                break;
            case 200:
            case 204:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                if (gray8 == gray4)
                {
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 3, 3, 3);
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel8, pixel6, 5, 2, 1, 3);
                }
                else
                {
                    dstCurLine[0] = Interpolate_2(pixel5, pixel7, 3, 1, 2);
                    dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                }
                break;
            case 73:
            case 77:
                if (gray8 == gray4)
                {
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 5, 2, 1, 3);
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 3, 3, 3);
                }
                else
                {
                    dstRowPtr[0] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                    dstCurLine[0] = Interpolate_2(pixel5, pixel7, 3, 1, 2);
                }
                dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel6, 2, 1, 1, 2);
                break;
            case 42:
            case 170:
                if (gray4 == gray2)
                {
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 3, 3, 3);
                    dstCurLine[0] = Interpolate_3(pixel5, pixel4, pixel8, 5, 2, 1, 3);
                }
                else
                {
                    dstRowPtr[0] = Interpolate_2(pixel5, pixel1, 3, 1, 2);
                    dstCurLine[0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                }
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel6, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                break;
            case 14:
            case 142:
                if (gray4 == gray2)
                {
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 3, 3, 3);
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 5, 2, 1, 3);
                }
                else
                {
                    dstRowPtr[0] = Interpolate_2(pixel5, pixel1, 3, 1, 2);
                    dstRowPtr[1] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                }
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel8, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                break;
            case 67:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel6, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel4, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel6, 2, 1, 1, 2);
                break;
            case 70:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel4, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel4, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel6, 2, 1, 1, 2);
                break;
            case 28:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel8, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel8, 2, 1, 1, 2);
                break;
            case 152:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel2, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel8, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                break;
            case 194:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel4, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel6, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel4, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                break;
            case 98:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel4, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel6, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel6, 2, 1, 1, 2);
                break;
            case 56:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel2, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel8, 2, 1, 1, 2);
                break;
            case 25:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel2, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel8, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel8, 2, 1, 1, 2);
                break;
            case 26:
            case 31:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                else
                    dstRowPtr[0] = pixel5;
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                else
                    dstRowPtr[1] = pixel5;
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel8, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel8, 2, 1, 1, 2);
                break;
            case 82:
            case 214:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel4, 2, 1, 1, 2);
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                else
                    dstRowPtr[1] = pixel5;
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel4, 2, 1, 1, 2);
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                else
                    dstCurLineNextPixel [0] = pixel5;
                break;
            case 88:
            case 248:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel2, 2, 1, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                else
                    dstCurLine[0] = pixel5;
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                else
                    dstCurLineNextPixel [0] = pixel5;
                break;
            case 74:
            case 107:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                else
                    dstRowPtr[0] = pixel5;
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel6, 2, 1, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                else
                    dstCurLine[0] = pixel5;
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel6, 2, 1, 1, 2);
                break;
            case 27:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                else
                    dstRowPtr[0] = pixel5;
                dstRowPtr[1] = Interpolate_2(pixel5, pixel3, 3, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel8, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel8, 2, 1, 1, 2);
                break;
            case 86:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel4, 2, 1, 1, 2);
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                else
                    dstRowPtr[1] = pixel5;
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel4, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel9, 3, 1, 2);
                break;
            case 216:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel2, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel7, 3, 1, 2);
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                else
                    dstCurLineNextPixel [0] = pixel5;
                break;
            case 106:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel1, 3, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel6, 2, 1, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                else
                    dstCurLine[0] = pixel5;
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel6, 2, 1, 1, 2);
                break;
            case 30:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel1, 3, 1, 2);
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                else
                    dstRowPtr[1] = pixel5;
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel8, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel8, 2, 1, 1, 2);
                break;
            case 210:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel4, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel3, 3, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel4, 2, 1, 1, 2);
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                else
                    dstCurLineNextPixel [0] = pixel5;
                break;
            case 120:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel2, 2, 1, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                else
                    dstCurLine[0] = pixel5;
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel9, 3, 1, 2);
                break;
            case 75:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                else
                    dstRowPtr[0] = pixel5;
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel6, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel7, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel6, 2, 1, 1, 2);
                break;
            case 29:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel8, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel8, 2, 1, 1, 2);
                break;
            case 198:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel4, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel4, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                break;
            case 184:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel2, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                break;
            case 99:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel6, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel6, 2, 1, 1, 2);
                break;
            case 57:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel2, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel8, 2, 1, 1, 2);
                break;
            case 71:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel4, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel6, 2, 1, 1, 2);
                break;
            case 156:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel8, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                break;
            case 226:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel4, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel6, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                break;
            case 60:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel8, 2, 1, 1, 2);
                break;
            case 195:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel6, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel4, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                break;
            case 102:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel4, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel6, 2, 1, 1, 2);
                break;
            case 153:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel2, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel8, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                break;
            case 58:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 6, 1, 1, 3);
                else
                    dstRowPtr[0] = Interpolate_2(pixel5, pixel1, 3, 1, 2);
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 6, 1, 1, 3);
                else
                    dstRowPtr[1] = Interpolate_2(pixel5, pixel3, 3, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel8, 2, 1, 1, 2);
                break;
            case 83:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 6, 1, 1, 3);
                else
                    dstRowPtr[1] = Interpolate_2(pixel5, pixel3, 3, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel4, 2, 1, 1, 2);
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 6, 1, 1, 3);
                else
                    dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel9, 3, 1, 2);
                break;
            case 92:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 6, 1, 1, 3);
                else
                    dstCurLine[0] = Interpolate_2(pixel5, pixel7, 3, 1, 2);
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 6, 1, 1, 3);
                else
                    dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel9, 3, 1, 2);
                break;
            case 202:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 6, 1, 1, 3);
                else
                    dstRowPtr[0] = Interpolate_2(pixel5, pixel1, 3, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel6, 2, 1, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 6, 1, 1, 3);
                else
                    dstCurLine[0] = Interpolate_2(pixel5, pixel7, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                break;
            case 78:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 6, 1, 1, 3);
                else
                    dstRowPtr[0] = Interpolate_2(pixel5, pixel1, 3, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 6, 1, 1, 3);
                else
                    dstCurLine[0] = Interpolate_2(pixel5, pixel7, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel6, 2, 1, 1, 2);
                break;
            case 154:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 6, 1, 1, 3);
                else
                    dstRowPtr[0] = Interpolate_2(pixel5, pixel1, 3, 1, 2);
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 6, 1, 1, 3);
                else
                    dstRowPtr[1] = Interpolate_2(pixel5, pixel3, 3, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel8, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                break;
            case 114:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel4, 2, 1, 1, 2);
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 6, 1, 1, 3);
                else
                    dstRowPtr[1] = Interpolate_2(pixel5, pixel3, 3, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 6, 1, 1, 3);
                else
                    dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel9, 3, 1, 2);
                break;
            case 89:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel2, 2, 1, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 6, 1, 1, 3);
                else
                    dstCurLine[0] = Interpolate_2(pixel5, pixel7, 3, 1, 2);
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 6, 1, 1, 3);
                else
                    dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel9, 3, 1, 2);
                break;
            case 90:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 6, 1, 1, 3);
                else
                    dstRowPtr[0] = Interpolate_2(pixel5, pixel1, 3, 1, 2);
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 6, 1, 1, 3);
                else
                    dstRowPtr[1] = Interpolate_2(pixel5, pixel3, 3, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 6, 1, 1, 3);
                else
                    dstCurLine[0] = Interpolate_2(pixel5, pixel7, 3, 1, 2);
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 6, 1, 1, 3);
                else
                    dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel9, 3, 1, 2);
                break;
            case 23:
            case 55:
                if (gray2 == gray6)
                {
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel2, pixel4, 5, 2, 1, 3);
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 3, 3, 3);
                }
                else
                {
                    dstRowPtr[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                    dstRowPtr[1] = pixel5;
                }
                dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel8, 2, 1, 1, 2);
                break;
            case 150:
            case 182:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel4, 2, 1, 1, 2);
                if (gray2 == gray6)
                {
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 3, 3, 3);
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 5, 2, 1, 3);
                }
                else
                {
                    dstRowPtr[1] = pixel5;
                    dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                }
                dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                break;
            case 212:
            case 213:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                if (gray6 == gray8)
                {
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel6, pixel2, 5, 2, 1, 3);
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 3, 3, 3);
                }
                else
                {
                    dstRowPtr[1] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                    dstCurLineNextPixel [0] = pixel5;
                }
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel4, 2, 1, 1, 2);
                break;
            case 240:
            case 241:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel2, 2, 1, 1, 2);
                if (gray6 == gray8)
                {
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 5, 2, 1, 3);
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 3, 3, 3);
                }
                else
                {
                    dstCurLine[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                    dstCurLineNextPixel [0] = pixel5;
                }
                break;
            case 232:
            case 236:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                if (gray8 == gray4)
                {
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 3, 3, 3);
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel8, pixel6, 5, 2, 1, 3);
                }
                else
                {
                    dstCurLine[0] = pixel5;
                    dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                }
                break;
            case 105:
            case 109:
                if (gray8 == gray4)
                {
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 5, 2, 1, 3);
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 3, 3, 3);
                }
                else
                {
                    dstRowPtr[0] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                    dstCurLine[0] = pixel5;
                }
                dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel6, 2, 1, 1, 2);
                break;
            case 43:
            case 171:
                if (gray4 == gray2)
                {
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 3, 3, 3);
                    dstCurLine[0] = Interpolate_3(pixel5, pixel4, pixel8, 5, 2, 1, 3);
                }
                else
                {
                    dstRowPtr[0] = pixel5;
                    dstCurLine[0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                }
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel6, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                break;
            case 15:
            case 143:
                if (gray4 == gray2)
                {
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 3, 3, 3);
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 5, 2, 1, 3);
                }
                else
                {
                    dstRowPtr[0] = pixel5;
                    dstRowPtr[1] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                }
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel8, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                break;
            case 124:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                else
                    dstCurLine[0] = pixel5;
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel9, 3, 1, 2);
                break;
            case 203:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                else
                    dstRowPtr[0] = pixel5;
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel6, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel7, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                break;
            case 62:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel1, 3, 1, 2);
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                else
                    dstRowPtr[1] = pixel5;
                dstCurLine[0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel8, 2, 1, 1, 2);
                break;
            case 211:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel3, 3, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel4, 2, 1, 1, 2);
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                else
                    dstCurLineNextPixel [0] = pixel5;
                break;
            case 118:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel4, 2, 1, 1, 2);
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                else
                    dstRowPtr[1] = pixel5;
                dstCurLine[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel9, 3, 1, 2);
                break;
            case 217:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel2, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel7, 3, 1, 2);
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                else
                    dstCurLineNextPixel [0] = pixel5;
                break;
            case 110:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel1, 3, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                else
                    dstCurLine[0] = pixel5;
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel6, 2, 1, 1, 2);
                break;
            case 155:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                else
                    dstRowPtr[0] = pixel5;
                dstRowPtr[1] = Interpolate_2(pixel5, pixel3, 3, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel8, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                break;
            case 188:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                break;
            case 185:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel2, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                break;
            case 61:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel8, 2, 1, 1, 2);
                break;
            case 157:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel8, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                break;
            case 103:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel6, 2, 1, 1, 2);
                break;
            case 227:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel6, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                break;
            case 230:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel4, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                break;
            case 199:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel4, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                break;
            case 220:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 6, 1, 1, 3);
                else
                    dstCurLine[0] = Interpolate_2(pixel5, pixel7, 3, 1, 2);
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                else
                    dstCurLineNextPixel [0] = pixel5;
                break;
            case 158:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 6, 1, 1, 3);
                else
                    dstRowPtr[0] = Interpolate_2(pixel5, pixel1, 3, 1, 2);
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                else
                    dstRowPtr[1] = pixel5;
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel8, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                break;
            case 234:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 6, 1, 1, 3);
                else
                    dstRowPtr[0] = Interpolate_2(pixel5, pixel1, 3, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel6, 2, 1, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                else
                    dstCurLine[0] = pixel5;
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                break;
            case 242:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel4, 2, 1, 1, 2);
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 6, 1, 1, 3);
                else
                    dstRowPtr[1] = Interpolate_2(pixel5, pixel3, 3, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                else
                    dstCurLineNextPixel [0] = pixel5;
                break;
            case 59:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                else
                    dstRowPtr[0] = pixel5;
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 6, 1, 1, 3);
                else
                    dstRowPtr[1] = Interpolate_2(pixel5, pixel3, 3, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel8, 2, 1, 1, 2);
                break;
            case 121:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel2, 2, 1, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                else
                    dstCurLine[0] = pixel5;
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 6, 1, 1, 3);
                else
                    dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel9, 3, 1, 2);
                break;
            case 87:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                else
                    dstRowPtr[1] = pixel5;
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel4, 2, 1, 1, 2);
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 6, 1, 1, 3);
                else
                    dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel9, 3, 1, 2);
                break;
            case 79:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                else
                    dstRowPtr[0] = pixel5;
                dstRowPtr[1] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 6, 1, 1, 3);
                else
                    dstCurLine[0] = Interpolate_2(pixel5, pixel7, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel6, 2, 1, 1, 2);
                break;
            case 122:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 6, 1, 1, 3);
                else
                    dstRowPtr[0] = Interpolate_2(pixel5, pixel1, 3, 1, 2);
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 6, 1, 1, 3);
                else
                    dstRowPtr[1] = Interpolate_2(pixel5, pixel3, 3, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                else
                    dstCurLine[0] = pixel5;
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 6, 1, 1, 3);
                else
                    dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel9, 3, 1, 2);
                break;
            case 94:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 6, 1, 1, 3);
                else
                    dstRowPtr[0] = Interpolate_2(pixel5, pixel1, 3, 1, 2);
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                else
                    dstRowPtr[1] = pixel5;
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 6, 1, 1, 3);
                else
                    dstCurLine[0] = Interpolate_2(pixel5, pixel7, 3, 1, 2);
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 6, 1, 1, 3);
                else
                    dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel9, 3, 1, 2);
                break;
            case 218:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 6, 1, 1, 3);
                else
                    dstRowPtr[0] = Interpolate_2(pixel5, pixel1, 3, 1, 2);
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 6, 1, 1, 3);
                else
                    dstRowPtr[1] = Interpolate_2(pixel5, pixel3, 3, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 6, 1, 1, 3);
                else
                    dstCurLine[0] = Interpolate_2(pixel5, pixel7, 3, 1, 2);
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                else
                    dstCurLineNextPixel [0] = pixel5;
                break;
            case 91:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                else
                    dstRowPtr[0] = pixel5;
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 6, 1, 1, 3);
                else
                    dstRowPtr[1] = Interpolate_2(pixel5, pixel3, 3, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 6, 1, 1, 3);
                else
                    dstCurLine[0] = Interpolate_2(pixel5, pixel7, 3, 1, 2);
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 6, 1, 1, 3);
                else
                    dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel9, 3, 1, 2);
                break;
            case 229:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                break;
            case 167:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                break;
            case 173:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                break;
            case 181:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                break;
            case 186:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 6, 1, 1, 3);
                else
                    dstRowPtr[0] = Interpolate_2(pixel5, pixel1, 3, 1, 2);
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 6, 1, 1, 3);
                else
                    dstRowPtr[1] = Interpolate_2(pixel5, pixel3, 3, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                break;
            case 115:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 6, 1, 1, 3);
                else
                    dstRowPtr[1] = Interpolate_2(pixel5, pixel3, 3, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 6, 1, 1, 3);
                else
                    dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel9, 3, 1, 2);
                break;
            case 93:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 6, 1, 1, 3);
                else
                    dstCurLine[0] = Interpolate_2(pixel5, pixel7, 3, 1, 2);
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 6, 1, 1, 3);
                else
                    dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel9, 3, 1, 2);
                break;
            case 206:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 6, 1, 1, 3);
                else
                    dstRowPtr[0] = Interpolate_2(pixel5, pixel1, 3, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 6, 1, 1, 3);
                else
                    dstCurLine[0] = Interpolate_2(pixel5, pixel7, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                break;
            case 201:
            case 205:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 6, 1, 1, 3);
                else
                    dstCurLine[0] = Interpolate_2(pixel5, pixel7, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                break;
            case 46:
            case 174:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 6, 1, 1, 3);
                else
                    dstRowPtr[0] = Interpolate_2(pixel5, pixel1, 3, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                break;
            case 147:
            case 179:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 6, 1, 1, 3);
                else
                    dstRowPtr[1] = Interpolate_2(pixel5, pixel3, 3, 1, 2);
                dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                break;
            case 116:
            case 117:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 6, 1, 1, 3);
                else
                    dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel9, 3, 1, 2);
                break;
            case 189:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                break;
            case 231:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                break;
            case 126:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel1, 3, 1, 2);
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                else
                    dstRowPtr[1] = pixel5;
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                else
                    dstCurLine[0] = pixel5;
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel9, 3, 1, 2);
                break;
            case 219:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                else
                    dstRowPtr[0] = pixel5;
                dstRowPtr[1] = Interpolate_2(pixel5, pixel3, 3, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel7, 3, 1, 2);
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                else
                    dstCurLineNextPixel [0] = pixel5;
                break;
            case 125:
                if (gray8 == gray4)
                {
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 5, 2, 1, 3);
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 3, 3, 3);
                }
                else
                {
                    dstRowPtr[0] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                    dstCurLine[0] = pixel5;
                }
                dstRowPtr[1] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel9, 3, 1, 2);
                break;
            case 221:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                if (gray6 == gray8)
                {
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel6, pixel2, 5, 2, 1, 3);
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 3, 3, 3);
                }
                else
                {
                    dstRowPtr[1] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                    dstCurLineNextPixel [0] = pixel5;
                }
                dstCurLine[0] = Interpolate_2(pixel5, pixel7, 3, 1, 2);
                break;
            case 207:
                if (gray4 == gray2)
                {
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 3, 3, 3);
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 5, 2, 1, 3);
                }
                else
                {
                    dstRowPtr[0] = pixel5;
                    dstRowPtr[1] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                }
                dstCurLine[0] = Interpolate_2(pixel5, pixel7, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                break;
            case 238:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel1, 3, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                if (gray8 == gray4)
                {
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 3, 3, 3);
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel8, pixel6, 5, 2, 1, 3);
                }
                else
                {
                    dstCurLine[0] = pixel5;
                    dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                }
                break;
            case 190:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel1, 3, 1, 2);
                if (gray2 == gray6)
                {
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 3, 3, 3);
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 5, 2, 1, 3);
                }
                else
                {
                    dstRowPtr[1] = pixel5;
                    dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                }
                dstCurLine[0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                break;
            case 187:
                if (gray4 == gray2)
                {
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 3, 3, 3);
                    dstCurLine[0] = Interpolate_3(pixel5, pixel4, pixel8, 5, 2, 1, 3);
                }
                else
                {
                    dstRowPtr[0] = pixel5;
                    dstCurLine[0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                }
                dstRowPtr[1] = Interpolate_2(pixel5, pixel3, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                break;
            case 243:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel3, 3, 1, 2);
                if (gray6 == gray8)
                {
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 5, 2, 1, 3);
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 3, 3, 3);
                }
                else
                {
                    dstCurLine[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                    dstCurLineNextPixel [0] = pixel5;
                }
                break;
            case 119:
                if (gray2 == gray6)
                {
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel2, pixel4, 5, 2, 1, 3);
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 3, 3, 3);
                }
                else
                {
                    dstRowPtr[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                    dstRowPtr[1] = pixel5;
                }
                dstCurLine[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel9, 3, 1, 2);
                break;
            case 233:
            case 237:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 14, 1, 1, 4);
                else
                    dstCurLine[0] = pixel5;
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                break;
            case 47:
            case 175:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 14, 1, 1, 4);
                else
                    dstRowPtr[0] = pixel5;
                dstRowPtr[1] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                break;
            case 151:
            case 183:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 14, 1, 1, 4);
                else
                    dstRowPtr[1] = pixel5;
                dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                break;
            case 244:
            case 245:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstCurLine[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 14, 1, 1, 4);
                else
                    dstCurLineNextPixel [0] = pixel5;
                break;
            case 250:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel1, 3, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel3, 3, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                else
                    dstCurLine[0] = pixel5;
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                else
                    dstCurLineNextPixel [0] = pixel5;
                break;
            case 123:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                else
                    dstRowPtr[0] = pixel5;
                dstRowPtr[1] = Interpolate_2(pixel5, pixel3, 3, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                else
                    dstCurLine[0] = pixel5;
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel9, 3, 1, 2);
                break;
            case 95:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                else
                    dstRowPtr[0] = pixel5;
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                else
                    dstRowPtr[1] = pixel5;
                dstCurLine[0] = Interpolate_2(pixel5, pixel7, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel9, 3, 1, 2);
                break;
            case 222:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel1, 3, 1, 2);
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                else
                    dstRowPtr[1] = pixel5;
                dstCurLine[0] = Interpolate_2(pixel5, pixel7, 3, 1, 2);
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                else
                    dstCurLineNextPixel [0] = pixel5;
                break;
            case 252:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel2, 2, 1, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                else
                    dstCurLine[0] = pixel5;
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 14, 1, 1, 4);
                else
                    dstCurLineNextPixel [0] = pixel5;
                break;
            case 249:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel2, 2, 1, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 14, 1, 1, 4);
                else
                    dstCurLine[0] = pixel5;
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                else
                    dstCurLineNextPixel [0] = pixel5;
                break;
            case 235:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                else
                    dstRowPtr[0] = pixel5;
                dstRowPtr[1] = Interpolate_3(pixel5, pixel3, pixel6, 2, 1, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 14, 1, 1, 4);
                else
                    dstCurLine[0] = pixel5;
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                break;
            case 111:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 14, 1, 1, 4);
                else
                    dstRowPtr[0] = pixel5;
                dstRowPtr[1] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                else
                    dstCurLine[0] = pixel5;
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel6, 2, 1, 1, 2);
                break;
            case 63:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 14, 1, 1, 4);
                else
                    dstRowPtr[0] = pixel5;
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                else
                    dstRowPtr[1] = pixel5;
                dstCurLine[0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel9, pixel8, 2, 1, 1, 2);
                break;
            case 159:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                else
                    dstRowPtr[0] = pixel5;
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 14, 1, 1, 4);
                else
                    dstRowPtr[1] = pixel5;
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel8, 2, 1, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                break;
            case 215:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 14, 1, 1, 4);
                else
                    dstRowPtr[1] = pixel5;
                dstCurLine[0] = Interpolate_3(pixel5, pixel7, pixel4, 2, 1, 1, 2);
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                else
                    dstCurLineNextPixel [0] = pixel5;
                break;
            case 246:
                dstRowPtr[0] = Interpolate_3(pixel5, pixel1, pixel4, 2, 1, 1, 2);
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                else
                    dstRowPtr[1] = pixel5;
                dstCurLine[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 14, 1, 1, 4);
                else
                    dstCurLineNextPixel [0] = pixel5;
                break;
            case 254:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel1, 3, 1, 2);
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                else
                    dstRowPtr[1] = pixel5;
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                else
                    dstCurLine[0] = pixel5;
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 14, 1, 1, 4);
                else
                    dstCurLineNextPixel [0] = pixel5;
                break;
            case 253:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                dstRowPtr[1] = Interpolate_2(pixel5, pixel2, 3, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 14, 1, 1, 4);
                else
                    dstCurLine[0] = pixel5;
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 14, 1, 1, 4);
                else
                    dstCurLineNextPixel [0] = pixel5;
                break;
            case 251:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                else
                    dstRowPtr[0] = pixel5;
                dstRowPtr[1] = Interpolate_2(pixel5, pixel3, 3, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 14, 1, 1, 4);
                else
                    dstCurLine[0] = pixel5;
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                else
                    dstCurLineNextPixel [0] = pixel5;
                break;
            case 239:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 14, 1, 1, 4);
                else
                    dstRowPtr[0] = pixel5;
                dstRowPtr[1] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 14, 1, 1, 4);
                else
                    dstCurLine[0] = pixel5;
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel6, 3, 1, 2);
                break;
            case 127:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 14, 1, 1, 4);
                else
                    dstRowPtr[0] = pixel5;
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 2, 1, 1, 2);
                else
                    dstRowPtr[1] = pixel5;
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 2, 1, 1, 2);
                else
                    dstCurLine[0] = pixel5;
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel9, 3, 1, 2);
                break;
            case 191:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 14, 1, 1, 4);
                else
                    dstRowPtr[0] = pixel5;
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 14, 1, 1, 4);
                else
                    dstRowPtr[1] = pixel5;
                dstCurLine[0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                dstCurLineNextPixel [0] = Interpolate_2(pixel5, pixel8, 3, 1, 2);
                break;
            case 223:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 2, 1, 1, 2);
                else
                    dstRowPtr[0] = pixel5;
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 14, 1, 1, 4);
                else
                    dstRowPtr[1] = pixel5;
                dstCurLine[0] = Interpolate_2(pixel5, pixel7, 3, 1, 2);
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 2, 1, 1, 2);
                else
                    dstCurLineNextPixel [0] = pixel5;
                break;
            case 247:
                dstRowPtr[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 14, 1, 1, 4);
                else
                    dstRowPtr[1] = pixel5;
                dstCurLine[0] = Interpolate_2(pixel5, pixel4, 3, 1, 2);
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 14, 1, 1, 4);
                else
                    dstCurLineNextPixel [0] = pixel5;
                break;
            case 255:
                if (gray4 == gray2)
                    dstRowPtr[0] = Interpolate_3(pixel5, pixel4, pixel2, 14, 1, 1, 4);
                else
                    dstRowPtr[0] = pixel5;
                if (gray2 == gray6)
                    dstRowPtr[1] = Interpolate_3(pixel5, pixel2, pixel6, 14, 1, 1, 4);
                else
                    dstRowPtr[1] = pixel5;
                if (gray8 == gray4)
                    dstCurLine[0] = Interpolate_3(pixel5, pixel8, pixel4, 14, 1, 1, 4);
                else
                    dstCurLine[0] = pixel5;
                if (gray6 == gray8)
                    dstCurLineNextPixel [0] = Interpolate_3(pixel5, pixel6, pixel8, 14, 1, 1, 4);
                else
                    dstCurLineNextPixel [0] = pixel5;
                break;
            default:
                break;
            }
            srcRowPtr++;
            dstRowPtr += step;
        } 
    }
}

　　本代码仅支持4通道32位，若1通道以及3通道，可参考改动之。

也不是很麻烦，代码也是挺简单的，虽然有点长，懒得写注释了，感兴趣的可以看看官方的代码。

俺这代码主要是做了一些算法上的简单优化。

好久没发博文里，上来冒个泡。不喜请喷。

俺的联系方式如下:

邮箱: gaozhihan@vip.qq.com

QQ:200759103

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