版权声明:本文为博主原创文章,未经博主允许不得转载。 https://blog.csdn.net/CV2017/article/details/82800637
例3-12 用 imageROI 来增加某范围的像素
#include <cv.h>
#include <highgui.h>
int main()
{
IplImage* src = cvLoadImage("C:\\1.png", 1);
int x = 400;
int y = 200;
int width = 100;
int height = 100;
cvSetImageROI(src, cvRect(x,y,width,height));
cvAddS(src, cvScalar(0,0,50), src);
cvResetImageROI(src);
cvNamedWindow("ROI_ADD", 1);
cvShowImage("ROI_ADD", src);
cvWaitKey();
return 0;
}