I’m sure there’s a simple answer to this but I can’t seem to figure it out.
Once I’ve created a parametric or delta E mask, I sometimes want to use an area mask to subtract (exclude) an area from the other mask. When I use the Subtract option in the Area mask, it seems to subtract all of the previous mask, not just the part within the area mask.
I can achieve what I want using the Add option and placing the area mask over the area I want to include. But is there a way to use an area mask to exclude, or am I just going about this the wrong way?
Maybe I don’t really understand how the Subtract and Intersect options work…