11-opencv图像通道分离与合并

void QuickDemo::channels_demo(Mat& image) {
	std::vector<Mat>mv;
	split(image, mv);
	imshow("蓝色", mv[0]);
	imshow("绿色", mv[1]);
	imshow("红色", mv[2]);

	Mat dst;
	//mv[0] = 0;
	mv[2] = 128;
	merge(mv, dst);
	imshow("红色", dst);

int from_to[] = { 0,2,1,1,2,0 };
mixChannels(&image,1, &dst,1, from_to,3);
imshow("通道混合", dst);
}