cvtColor()

原输入图像，目标输出图像，转换方式宏定义

	//读取图片Mat photo = imread("/home/pqq/workspace/CVworks/Picture/seaside.jpeg", 1);if (photo.empty()){printf("Photo is empty\n");}else{namedWindow("show photo", WINDOW_AUTOSIZE);	//设置窗口imshow("show photo", photo);	//显示图片//    QuickDemo qd;// qd.colorSpace_change(photo);// qd.DemoReadVideo();//	    qd.demo_WriteVideo();//色域转化部分Mat gray, hsv;cvtColor(image, hsv, COLOR_BGR2HSV);	//转化cvtColor(image, gray, COLOR_BGR2GRAY);imshow("HSV", hsv);imshow("GRAY", gray);imwrite("./hsv.png", hsv);imwrite("./gray.png", gray);waitKey(0);}