class morphoFeatures {
    private:
        int threshold;
        cv::Mat cross;
        cv::Mat square;
        cv::Mat diamond;
        cv::Mat x;
    };
    int main(int argc, char**argv) {
        Mat img = imread("cars2.jpg");
        if (img.empty())
            cout << "failed!";
        cvtColor(img,img, CV_RGB2GRAY);
        Mat result;

    //I get 4 errors in this line:
        morphoFeatures(): threshold(-1), cross(5, 5, CV_8U, Scalar(0)),square(5, 5, CV_8U, Scalar(1)), diamond(5, 5, CV_8U, scalar(1)), x(5, 5, CV_8U, Scalar(0)){}

    waitKey();
    return 0;}