Image Approval Test

void check(string expected, string actual, bool disabled=false) {
    auto res = cv::imread(actual);
    auto approved = cv::imread(expected);
    auto diff = approved - res;
    auto sum = cv::sum(diff);
    
    if(sum[0]+sum[1]+sum[2] > 0.0001 && !disabled) {
        show("expeced", approved);
        show("actual", res);
        show("diff", diff);
        cv::waitKey(0);
        exit(1);
    }
    
    exit(0);
}