cv::xphoto::inpaint crashed in KDTreeComparator::operator()(int const&, int const&) const

[hezhk3]

System information (version)

• OpenCV => 3.4.1
• Operating System / Platform => iOS 11
  

[berak]

hello, @hezhk3 , could you add a short code example (and maybe a small image) to reproduce the error ?

(and maybe drop the screenshot ? yes, there's a buffer overrun, but apart from that, no useful information there)

[hezhk3]

Sorry for the late reply. Using these two images as src and mask, the xphoto::inpaint is crashing all the time.

images.zip

my test code: https://pan.baidu.com/s/1Ospqv_atheXd-Svu8bqrTw

[terfendail]

I've tried to reproduce the issue but doesn't get the crash at least for the following code

Mat src = imread("src.png", IMREAD_GRAYSCALE);
Mat mask = imread("mask.png", IMREAD_GRAYSCALE);
Mat dst;
xphoto::inpaint(src, mask, dst, xphoto::INPAINT_SHIFTMAP);
return 0;

@hezhk3 Could you please provide a short reproducer?

[hezhk3]

@terfendail I've tested on Windows. It's weird that I can't reproduce on Windows. Maybe it's only crashing on iOS.

        UIImage *srcImage = [UIImage imageNamed:@"src.png"];
        UIImage *maskImage = [UIImage imageNamed:@"mask.png"];
        
        cv::Mat src, mask, dst;
        
        UIImageToMat(srcImage, src, false);
        UIImageToMat(maskImage, mask, false);
        
        std::cout << src.channels() << std::endl;
        std::cout << mask.channels() << std::endl;
        
        cv::xphoto::inpaint(src, mask, dst, cv::xphoto::INPAINT_SHIFTMAP);
        
        UIImage *dstImage = MatToUIImage(dst);

[puchog]

I am getting the same issue on iOS, I found that applying the modifications proposed on #965 (comment) the issue its fixed, when I get some time I will create the PR with the fix

[danopdev]

I have a segmentation fault too using the inpaint cv::xphoto::INPAINT_SHIFTMAP and the following images.
If I use smaller images I have no problems.