维纳过滤

Question

我想写一个Wiener滤镜来改善图像。我不想使用傅立叶，我知道有一个基于中位数和方差的alg，但我找不到它。你能帮帮我们吗？ 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。

使用上述代码的示例

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);
}