Doing this is not fully possible in RootPainter and requires additional scripting. An option could be added to the software to mask images with segmentations. The code has already been written. See https://github.com/Abe404/im_mask/blob/main/main.py
This could be added as an option from the extras menu.
It can sometimes be useful to use a segmentation to mask out features of an image, i.e to remove noise or background as part of a localization stage in a two stage segmentation pipeline. See https://github.com/Abe404/root_painter/discussions/58#discussioncomment-3954315 for an example where this has been used.
Doing this is not fully possible in RootPainter and requires additional scripting. An option could be added to the software to mask images with segmentations. The code has already been written. See https://github.com/Abe404/im_mask/blob/main/main.py This could be added as an option from the extras menu.