Erode Filter with a Round kernel, supports fine controls and color preservation.
ErodeRound
Updated: 6 January 2020
Author: ErwanL
Compatible Nuke versions: 10.0 or later
Compatibility:
Erode/Dilate filter with a round kernel instead of the usual square, allows for more organic looking results.
Supports fractional (float) values for fine control, giving you the ability to erode by less than a pixel.
Has an option to erode colors based on their brightness rather than each channel independently, to prevent the creation of false colors.
Inspiration came from this thread: https://community.foundry.com/discuss/topic/144399/dilate-erode-with-round-pattern-like-keylight