
关于OPENCV图像处理的问题
IplImage*img=cvLoadImage("lena.bmp",CV_LOAD_IMAGE_GRAYSCALE);IplImage*tmp=cvCloneImag...
IplImage* img = cvLoadImage("lena.bmp",CV_LOAD_IMAGE_GRAYSCALE);
IplImage* tmp = cvCloneImage(img);
IplImage* dst = cvCreateImage(cvGetSize(img),IPL_DEPTH_64F,img->nChannels);
double M,m;
cvScale(img,dst,1.0,0.0);
cvAdd(dst,dst,dst);
cvMinMaxLoc(dst, &m, &M, NULL, NULL, NULL);
cout<<"M="<<M<<endl<<"m="<<m<<endl;
cvScale(dst,tmp,1.0,0.0);
cvScale(dst, dst, 1.0/(M-m), 1.0*(-m)/(M-m));
为什么加法运算要为IPL_DEPTH_64F深度的图像而不是 IPL_DEPTH_32F的? 展开
IplImage* tmp = cvCloneImage(img);
IplImage* dst = cvCreateImage(cvGetSize(img),IPL_DEPTH_64F,img->nChannels);
double M,m;
cvScale(img,dst,1.0,0.0);
cvAdd(dst,dst,dst);
cvMinMaxLoc(dst, &m, &M, NULL, NULL, NULL);
cout<<"M="<<M<<endl<<"m="<<m<<endl;
cvScale(dst,tmp,1.0,0.0);
cvScale(dst, dst, 1.0/(M-m), 1.0*(-m)/(M-m));
为什么加法运算要为IPL_DEPTH_64F深度的图像而不是 IPL_DEPTH_32F的? 展开
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