void lab03() {
    float numbers[9] = { 0, 0,0,1,0,0,0,0,0 };
    Mat mask = Mat(3, 3, CV_32FC1, numbers);
    Mat im = imread("eper.jpg");
    Mat result = im.clone();
    int key = 0;
    for (int i = 0; (i < im.cols) && key != 27; i++)
    {
        filter2D(result, result, -1, mask);
        imshow("Result", result);
        key = waitKey();
    }

    float numbers2[9] = {0.1, 0.1, 0.1, 0.1, 0.2, 0.1, 0.1, 0.1, 0.1};
    Mat mask2 = Mat(3, 3, CV_32FC1, numbers2);
    result = im.clone();
    key = 0;
    for (int i = 0; (i < im.cols) && key != 27; i++)
    {
        filter2D(result, result, -1, mask2);
        imshow("Result", result);
        key = waitKey();
    }
    im = imread("faliszonyeg.jpg");
    float k = 0;
    key = 0;
    result = im.clone();
    for (int i = 0; (i < im.cols) && key != 27; i++)
    {
        float numbers[9] = { 0, k / 4, 0, -k / 4, 1 + k, -k / 4, 0, -k / 4, 0 };
        Mat mask = Mat(3, 3, CV_32FC1, numbers);
        filter2D(result, result, -1, mask );
        imshow("Result", result);
        key = waitKey();
        k++;
    }
    key = 0;
    im = imread("eper.jpg");
    destroyWindow("Result");
    for (int k = 3; (k < 100) && key != 27;k += 2)
    {
        Mat resultGauss, resultBlur;
        blur(im, resultBlur,Size(k,k));
        GaussianBlur(im, resultGauss, Size(k, k), 1);
        imshow("Gauss", resultGauss);
        key = waitKey();
        imshow("Blur", resultBlur);
    key = waitKey();
    }

    Mat imBe = imread("repulo.jpg");
    Mat imKi = imBe.clone();
    key = 0;
    for (int db = 0; db < 20 ; ++db) {
        line(imBe, Point(rand() % imBe.cols, rand() % imBe.rows),
            Point(rand() % imBe.cols, rand() % imBe.rows),
            Scalar(0, 0, 0, 0), 1 + db % 2);
        Mat imKi = imBe.clone();
    }
    destroyAllWindows();
    for (int i = 1; i < 10 && key != 27; i+=2)
    {
        medianBlur(imBe, imKi, i);
        imshow("Result", imKi);
        key = waitKey(0);
    }
    destroyAllWindows();
    imBe = imread("amoba.png");

    key = 0;
    for (int i = 0;i < 600 && key!=27;i++)
    {
        medianBlur(imBe, imBe, 21);
        if(i%3==0){
            imshow("result", imBe);
            key = waitKey(0);
        }

    }
}
void lab02() {
    // Beolvassuk a színes képet
    Mat im = imread("eper.jpg");
    Mat z(im.rows, im.cols, CV_8UC1, Scalar(0));
    Mat imBig = Mat(im.rows * 3, im.cols * 6, im.type());
    imBig.setTo(Scalar(128, 128, 255, 0));
    int index = 0;
    Mat result = im.clone();

    Mat bgr[3], & b = bgr[0], & g = bgr[1], & r = bgr[2];
    split(im, bgr);
    showMyImage(imBig, result, index);
    //1
    merge(vector<Mat>{z, g, r}, result);
    showMyImage(imBig, result, index);
    merge(vector<Mat>{b, z, r}, result);
    showMyImage(imBig, result, index);
    merge(vector<Mat>{b, g, z}, result);
    showMyImage(imBig, result, index);
    //2
    merge(vector<Mat>{b, z, z}, result);
    showMyImage(imBig, result, index);
    merge(vector<Mat>{z, g, z}, result);
    showMyImage(imBig, result, index);
    merge(vector<Mat>{z, z, r}, result);
    showMyImage(imBig, result, index);
    //3.
    result = im.clone();
    merge(vector<Mat>{b, g, r}, result);
    showMyImage(imBig, result, index);
    merge(vector<Mat>{b, r, g}, result);
    showMyImage(imBig, result, index);
    merge(vector<Mat>{g, b, r}, result);
    showMyImage(imBig, result, index);
    merge(vector<Mat>{g, r, b}, result);
    showMyImage(imBig, result, index);
    merge(vector<Mat>{r, b, g}, result);
    showMyImage(imBig, result, index);
    merge(vector<Mat>{r, g, b}, result);
    showMyImage(imBig, result, index);
    //4
    merge(vector<Mat>{~b,g,r}, result);
    showMyImage(imBig, result, index);
    merge(vector<Mat>{b, ~g, r}, result);
    showMyImage(imBig, result, index);
    merge(vector<Mat>{b, g, ~r}, result);
    showMyImage(imBig, result, index);
    //5
    cvtColor(im, result, COLOR_BGR2YCrCb);
    Mat yCrCb[3], &y = yCrCb[0], &Cr = yCrCb[1], &Cb = yCrCb[2];
    split(result,yCrCb);
    merge(vector<Mat>{~y, Cr, Cb}, result);
    cvtColor(result, result, COLOR_YCrCb2BGR);
    showMyImage(imBig, result, index);
    //6
    merge(vector<Mat>{~b, ~g, ~r}, result);
    showMyImage(imBig, result, index);

    waitKey(0);

}