Segment by similarity to a reference image

[EnricoBeltramo]

It could be where interesting to make a segmentation based on similarity with a reference image. Is it possible, i.e, getting some kind of features from any mask found and compare the features with an reference image in order to check if the segmented area match using cosine similarity or L2 distance with the object? I haven't clear if there are some features that can are associated with a specific mask that I can use.