OpenCVMat颜色通道分离各通道合图显示

1、OpenCV Mat图像颜色通道分离(split)合成(merge),各通道合图显示#include #include #include #include using namespace cv; using namespace std;int main( int argc, char * argv )FreeConsole();/Hide the CMD windowif ( argc != 2)std:cout ”请输入需要加载的文件! std:endl;return -1;读取图像Mat image;char * imageName = argv1;image = imread(image

2、Name, CV_LOAD_IMAGE_COLOR) Read the file if (! image.data )/ Check for invalid inputreturn -1; /灰度图std:cout 文件加载失败, 请检查 ! std:endl ;Mat grayImage;cvtColor(image,grayImage,CV_RGB2GRAY); /Coonvert the image from RGB to Grayscale format /显示用Mat display;int w = image.cols;int h = image.rows;display.crea

3、te (h*2,w*2,CV_8UC3);/ 黑色Mat bk;bk.create(h,w,CV_8UC1);bk = Scalar(0);/ 显示框Mat m(display,Rect(0,0,w,h);Mat m1(display,Rect(0,h,w,h);Mat m2(display,Rect(w,0,w,h);Mat m3(display,Rect(w,h,w,h);Mat m4(display,Rect(w/2,h/2,w,h);/ 通道分离用std:vector sbgr(image.channels();/ 通道合成用std:vector mbgr(image.channels

4、();/ 分离split(image,sbgr); /split to sbgr0 ,sbgr1 ,sbgr2/ 合成到显示- 灰度mbgr0 = grayImage;mbgr1 = grayImage;mbgr2 = grayImage; merge(mbgr,m);/ 合成到显示-Bmbgr0 = sbgr0;mbgr1 = bk;mbgr2 = bk;merge(mbgr,m1);/ 合成到显示-Gmbgr0 = bk;mbgr1 = sbgr1;mbgr2 = bk;merge(mbgr,m2);/ 合成到显示-Rmbgr0 = bk;mbgr1 = bk;mbgr2 = sbgr2;merge(mbgr,m3);/ 复制到显示- 原图 image.copyTo (m4);/ 显示 namedWindow( imageName,CV_WINDOW_NORM/A/ LC);reate a window for display.resizeWindow(imageName,w*2,h*2);imshow( imageName, display);/ Show our