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image-rs / imageproc

Image processing operations
MIT License
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Fix fast corner 9 algorithm #680

Closed LMJW closed 1 month ago

LMJW commented 1 month ago

Simple bug fix for FAST corner 9 algorithm.

Currently the fast corner 9 has a bug which causing some of the corner cannot be found. It looks the coordinate (P4& P8) was not mapped correctly in fast algorithm.

Below are the corner find without bug fix, some of the corner cannot be identified.
corner1

With the fix, all the corners can be found. corner2

LMJW commented 1 month ago

@ripytide @theotherphil @cospectrum Pls take a look when you have time and let me know if you have any comments :)

theotherphil commented 1 month ago

Thanks! It would be good to have some tests for this too.