Segmentation fault (core dumped) about traffic-sign-detection

[glemaitre]

The code was tested with OpenCV 2. So there is probably some changes to do for OpenCV 3.
Check if homogeneous_contour needs to be be allocated before to be passed to the function.

[ChernyshovYuriy]

std::vector< cv::Point3f > homogeneous_contour;
homogeneous_contour.reserve(contour.size());

Does not help.
Is there any way in C++ to get stack trace? I tried to wrap around try / catch but it seems to be not works in a way that it does in Java.

Any other thoughts rather then try OpenCV 2?

[glemaitre]

I moved to Python so my C++ and related tools are a bit rusty. Regarding the trace, you should probably used an external library such as stacktrace, since there is nothing built-in. Compiling in debug mode should already give you some info normally. If you are using QtCreator, you should have something integrated I think: link.

If you identified that it was coming from the function I would check the input array to be sure that all the values are correct. Checking the OpenCV function, I don't see what can go wrong.

Is it failing with one of the testing images provided?

[ChernyshovYuriy]

Thanks a lot for information.
It failed on all images, does not matter which one, even if I provide my own images.

I am more interested in Python version of your project :-) Python is much more clear for me. Do you have your Python project set up in git as well or is it something that you manage internally?

[glemaitre]

This project is kinda of old (4-5 years) and I did not move it to python, unfortunately.

To make the project proper, I need to make the unit test at some point, but I am a bit lagging on that.
If you can get the trace that could be great. In the meanwhile, I will try to get a similar configuration and see if I can find out the issue. The good thing is that the bug is for all images ;). It should be a more or less easy one to identify.

[ChernyshovYuriy]

Backtrace.txt
Here is back trace. I used QtCreator and import project as C++ Application.
However, for me, this issue is in low priority because I am dealing with Python.