MODSCAG

This problem is solved: Painter used a threshold of 20% in modscag_cleanse processing, while this processing used 10%. When I changed the NSIDC threshold to 20%, the output was identical.

Painter's MODSCAG output

NSIDC MODSCAG output

Difference: NSIDC - Painter

Histogram of difference image, (x-axis values are multiplied by 100, so range from 10 to 20 is differences of 0.1 to 0.2)