OpenCV——高斯模糊与毛玻璃特效

// define head function
#ifndef PS_ALGORITHM_H_INCLUDED
#define PS_ALGORITHM_H_INCLUDED

#include <iostream>
#include <string>
#include "cv.h"
#include "highgui.h"
#include "cxmat.hpp"
#include "cxcore.hpp"
#include "math.h"

using namespace std;
using namespace cv;

void Show_Image(Mat&, const string &);

#endif // PS_ALGORITHM_H_INCLUDED

/*
This program will generate
gaussian blur and glass  effect

*/


#include "PS_Algorithm.h"
#include <time.h>

using namespace std;
using namespace cv;

int main()
{
    string Img_name("9.jpg");
    Mat Img_in;
    Img_in=imread(Img_name);
    Show_Image(Img_in, Img_name);

    Mat Img_out(Img_in.size(), CV_32FC3);
    Img_in.convertTo(Img_out, CV_32FC3);

    Mat temp;
    temp=Img_out.rowRange(100, 300);

    cv::GaussianBlur(temp, temp, Size(21,21), 0, 0);
    cv::GaussianBlur(temp, temp, Size(21,21), 0, 0);


    Img_out=Img_out/255.0;
    Show_Image(Img_out, "out");

    imwrite("Out.jpg", Img_out*255);


    waitKey();

}


// define the show image
#include "PS_Algorithm.h"
#include <iostream>
#include <string>

using namespace std;
using namespace cv;

void Show_Image(Mat& Image, const string& str)
{
    namedWindow(str.c_str(),CV_WINDOW_AUTOSIZE);
    imshow(str.c_str(), Image);

}

原图 

效果图