OpenCV颜色空间——BGR颜色空间

清疚 2022-03-15 02:18 400阅读 0赞

#include<opencv2/core.hpp>
    #include<opencv2/imgproc.hpp>
    #include<opencv2/highgui.hpp>
    using namespace cv;
    #include<string>
    using namespace std;
    //显示颜色
    Mat colorMap;
    //B的取值范围 [0,255]
    int B = 0;
    int MAX_B = 255;
    //G的取值范围[0,255]
    int G = 0;
    int MAX_G = 255;
    //R的取值范围[0,255]
    int R = 0;
    int MAX_R = 255;
    //颜色显示窗口
    string showColor = "BGR";
    //回调函数
    void callback(int, void*);
    int main(int argc, char*argv[])
    {
    	//分配内存
    	colorMap.create(Size(500, 500), CV_8UC3);
    	//命名窗口
    	namedWindow(showColor, WINDOW_GUI_EXPANDED);
    	//调节 B 分量
    	createTrackbar("B分量", showColor, &B, MAX_B, callback);
    	//调节 G 分量
    	createTrackbar("G分量", showColor, &G, MAX_G, callback);
    	//调节 R 分量
    	createTrackbar("R分量", showColor, &R, MAX_R, callback);
    	callback(0, 0);
    	waitKey(0);
    	return 0;
    }
    void callback(int, void*)
    {
    	//Lab颜色
    	colorMap.setTo(Vec3b(B, G, R));
    	//显示颜色空间
    	imshow(showColor, colorMap);
    }

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