What version opencv is this supposed to build against?

[clort81]

On linux I had no success with:
/usr/include/opencv
/usr/include/opencv2
/usr/include/opencv4

[bz2]

@clort81 This is code written against the (old) (v1) (C) api, so something under /usr/include/opencv should work - but the opencv project have been steadily deprecating that. So, it won't trivially build with the latest release, I'm afraid.

Looks possible to update to the replacement apis, which use cv::Mat rather than IplImage but requires a little bit of thought.

https://docs.opencv.org/3.4/df/de5/tutorial_interoperability_with_OpenCV_1.html