Cropper.prepare raises an exception when one rectangle does not overlap the ROI

[carlosandujar]

Depending on the input, some images might not overlap the largest internal rectangle (see example).

Cropper.prepare raises an exception, but it would be more desirable to just ignore non-overlapping rectangles, or return their indices so that they can be removed as when subsetting to the largest component of the graph.

[lukasalexanderweber]

Thanks for reporting the issue! I was not aware of that.

[lukasalexanderweber]

another use case with images which can be used to test:

StitchingError: Rectangles do not overlap!

https://github.com/OpenStitching/stitching/discussions/172#discussioncomment-7593776