opencv：通道的分离与合并

#include <opencv2/opencv.hpp>

#include <iostream>

using namespace cv;

using namespace std;

int main(int argc, char** argv)

{

    Mat src = imread("f:/temp/images/lena.jpg");

    if (src.empty())

    {

        printf("Could not find the image!\n");

        return -1;

    }

    namedWindow("input", WINDOW_AUTOSIZE);

    imshow("input", src);

    vector<Mat> mv;

    // 通道分离

    split(src, mv);

    int size = mv.size();

    printf("number of channels: %d\n", size);

    imshow("blue channel", mv[0]);

    imshow("green channel", mv[1]);

    imshow("red channel", mv[2]);

    // 修改通道内容然后合并通道

    mv[2] = Scalar(0);

    // bitwise_not(mv[0], mv[0]);

    Mat dst;

    // 通道合并

    merge(mv, dst);

    imshow("merge dst", dst);

    waitKey(0);

    destroyAllWindows();

}

巴特西

opencv：通道的分离与合并

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