6.对图像进行ROI选取并操作

void Test_ROIWith2Image()
{
	Mat g_srcImage=imread("D:\\OpenCV Projects\\OpenCV_Test_Image\\6.jpg");
	Mat g_srcImagelogo=imread("D:\\OpenCV Projects\\OpenCV_Test_Image\\logo1.jpg");
	//在原图上创建一个ROI区域(left,top,width,height)
	Mat g_roiImage=g_srcImage(Rect(100,50,g_srcImagelogo.cols,g_srcImagelogo.rows));
	//以灰度存储图像
	Mat g_mask=imread("D:\\OpenCV Projects\\OpenCV_Test_Image\\logo1.jpg",0);
	//将mask合并到ROI区域
	g_srcImagelogo.copyTo(g_roiImage,g_mask);
	imshow("原图",g_srcImage);
	imshow("ROI原图",g_srcImagelogo);
}