I have a moderately large (~400) set of line segment selections saved in the ROI manager. I’d like to duplicate and flip them horizontally add a mirror image of those line segments, and I can’t seem to find anything that will work.
I’ve tried selecting all of the ROIs and using OR (Combine), which creates a composite selection (which appears to be made up of rectangle ROIs, rather than lines) I can flip and translate. I then need to split these back into their original line segments, but when I use the Split tool, I get a set of a few thousand tiny rectangle ROIs instead of the original 400 lines.
Is there any way to preserve line segments when creating a composite ROI? Is there another approach to this I haven’t thought of? Thanks!