I have 2 datasets. One is snow cover and second is cloud mask. There are snow cover and snow free areas below cloud pixels. How i can mask out clouds in such a way that snow pixels should not be removed?
You can use different filters like spatial, temporal to reclassify cloudy pixel as snow or no snow. Attached paper might be useful (https://www.hydrol-earth-syst-sci.net/13/1361/2009/hess-13-1361-2009.pdf).