opencv中用Sobel算子进行边缘检测

workImg：当前工作图像（全局）；

img3：Sobel_edge结果；

m_imagetype:图像类型（全局）；

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OnEdgedetSobel()

{

IplImage *img = cvCreateImage( cvGetSize(workImg), IPL_DEPTH_16S, 1);

if(workImg->nChannels==3)

OnColorToGray();

//img=workImg;

imageClone(workImg,&img);

cvFlip(img);

IplImage *img2 = cvCreateImage( cvGetSize(img), IPL_DEPTH_16S, 1);//当输入图像是 8 位的，要求输出图像是 16 位的

IplImage *img3 = cvCreateImage( cvGetSize(img), IPL_DEPTH_8U, 1);

cvSobel( img, img2, 1, 0);

cvConvertScaleAbs(img2,img3,1,0);

cvReleaseImage(&img);

cvReleaseImage(&img2);

cvFlip(img3);

m_dibFlag=imageReplace(img3,&workImg);

m_ImageType=1;

Invalidate();