维纳滤波

Question

我想写一个维纳滤波器来改善图像。我不想使用傅里叶变换，我知道有一个基于中值和方差的alg，但是我找不到它。你能帮助我吗？ http://en.wikipedia.org/wiki/Wiener_filter

Answer 1

I think this is what you are looking for.此代码由Ray Juang编写。使用上面的代码

void main(int argc, char *argv[]) 
    if (argc <= 1) { 
      printf("Usage: %s <image>\n", argv[0]); 
      return; 
     } 

    IplImage *tmp = cvLoadImage(argv[1]); 
    IplImage *tmp2 = cvCreateImage(cvSize(tmp->width, tmp->height), IPL_DEPTH_8U, 1); 

    cvCvtColor(tmp, tmp2, CV_RGB2GRAY); 

    cvNamedWindow("Before"); 
    cvShowImage("Before", tmp); 

    cvWiener2(tmp2, tmp2, 3,3); 
    cvNamedWindow("After"); 

    cvShowImage("After", tmp2); 
    //cvSaveImage("C:/temp/result.png", tmp2); 
    cvWaitKey(-1); 


    cvReleaseImage(&tmp); 
    cvReleaseImage(&tmp2); 
}