Iterative Phase Correlation PR

OpenCV already has cv::phaseCorrelate function to find the shift between two images.

I am the author of the Iterative Phase Correlation algorithm, which is an extension to this algorithm, that significantly improves sub-pixel accuracy of the result. It is slightly slower, due to its iterative nature, but not N times slower than standard phase correlation (the DFTs are NOT computed more times).

Would this be a good addition to OpenCV? High sub-pixel accuracy is very desirable in some niche areas.I am asking because I do not want to waste time with the PR etc., if it is not a desirable feature.

Sounds useful to me. I can’t comment on what exactly it does or how it does that.

You have a choice of targeting your contribution to the core repo or the contrib repo. Getting stuff into the contrib repo is easier.

Begin by creating an issue on the main repo, so the the core devs can weigh in. They don’t frequent this forum, only the github. In such an issue, if they deem this useful, they may give direction.