antialias

I'm trying to sort how to make masks that would be restricted to contiguous areas a la photoshop's magic wand tool. Can't see a way to do this with standard jitter objects or cv.jit— perhaps there's a gen solution? Feathering edges would be a bonus! Any pointers appreciated.

restrict-lumachroma-key-to-contiguous-pixels

— find pixels within a luma range in the submatrix

— test to see if any of those pixels touch the border of the submatrix

— repeat until no pixels touch the border

Seems like there must be an easier way...

— define an arbitary submatrix
— find pixels within a luma range in the submatrix
— test to see if any of those pixels touch the border of the submatrix
— if so make the submatrix bigger
— repeat until no pixels touch the border

Seems like there must be an easier way...


Restrict luma/chroma key to contiguous pixels