《学习Opencv》第三章笔记及示例程序

例3-12 用 imageROI 来增加某范围的像素

#include 
#include 

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;
}