Roi Enlarge (without merging) / ROI merging / Edges to ROI conversion

Posted by Ghislain Bonamy on
URL: http://imagej.273.s1.nabble.com/Roi-Enlarge-without-merging-ROI-merging-Edges-to-ROI-conversion-tp3693456.html

I have seen a couple Threads in regards to modifying ROI. However, I do not believe that any of them solves my problem. Resizing ROI to a smaller size than there original size is not too hard. However enlarging them, while preserving a correct delimitation (not fusing the particle) is a different story.

I believe the easiest solution would be to use a seeded watershed algorithm. Unfortunately, I cannot seem to find any plugins for that. If you have any plugins that may do this I would much appreciate.

I am also interested in a tool to fuse ROI based on there properties (circularity, perimeter in common, fluorescence in different channels, distance, size...).

On another topic, does anyone have a way to convert edges to an ROI (this would probably need a way to provide a seed and to close edges)?

Thanks in adavance.