Restrict luma/chroma key to contiguous pixels


    Nov 19 2012 | 2:09 pm
    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.

    • Nov 22 2012 | 9:29 pm
      I'm wondering how this would work:
      — 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...