使用inpaint例子，去除水印

http://www.opencv.org.cn/forum.php?mod=viewthread&tid=33151

1. #include "stdafx.h"
2. #include "opencv2/highgui/highgui.hpp"
3. #include "opencv2/imgproc/imgproc.hpp"
4. #include "opencv2/photo/photo.hpp"
6. #include <iostream>
8. using namespace cv;
9. using namespace std;
11. static void help()
12. {
13.     cout << " Cool inpainging demo. Inpainting repairs damage to images by floodfilling the damage "
14.             << "with surrounding image areas. "
15.             "Using OpenCV version %s " << CV_VERSION << " "
16.     "Usage: "
17.         "./inpaint [image_name -- Default fruits.jpg] " << endl;
19.     cout << "Hot keys: "
20.         " ESC - quit the program "
21.         " r - restore the original image "
22.         " i or SPACE - run inpainting algorithm "
23.         " (before running it, paint something on the image) " << endl;
24. }
26. Mat img, inpaintMask;
27. Point prevPt(-1,-1);
29. static void onMouse( int event, int x, int y, int flags, void* )
30. {
31.     if( event == CV_EVENT_LBUTTONUP || !(flags & CV_EVENT_FLAG_LBUTTON) )
32.         prevPt = Point(-1,-1);
33.     else if( event == CV_EVENT_LBUTTONDOWN )
34.         prevPt = Point(x,y);
35.     else if( event == CV_EVENT_MOUSEMOVE && (flags & CV_EVENT_FLAG_LBUTTON) )
36.     {
37.         Point pt(x,y);
38.         if( prevPt.x < 0 )
39.             prevPt = pt;
40.         line( inpaintMask, prevPt, pt, Scalar::all(255), 5, 8, 0 );
41.         line( img, prevPt, pt, Scalar::all(255), 5, 8, 0 );
42.         prevPt = pt;
43.         imshow("image", img);
44.     }
45. }
48. int main( int argc, char** argv )
49. {        
50.         //读取图像和mask图像
51.     char* filename = argc >= 2 ? argv[1] : (char*)"fruits.jpg";
52.     Mat img0 = imread(filename, -1);
53.     if(img0.empty())
54.     {
55.         cout << "Couldn't open the image " << filename << ". Usage: inpaint <image_name> " << endl;
56.         return 0;
57.     }
59.     
60.     namedWindow( "image", 1 );
61.     img = img0.clone();
62.   
63.     imshow("image", img);
65.         Mat inpaintMask = imread("mask.jpg", 0);
66.         imshow("mask",inpaintMask);     
67.               Mat inpainted;
68.                           //注意这个inpaintmask的
69.               inpaint(img, inpaintMask, inpainted, 3, CV_INPAINT_TELEA);
70.               imshow("inpainted image", inpainted);
71.     cv::waitKey();
72.     return 0;
73. }

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