Keep ROI selection when splitting channels

Dear ImageJ gurus. How do I make a multiple selection of ROIs and then split channels so that the same ROI is retained in each channel. I need to measure the same region in R, G, B separately.


Never mind, figured it out. Analyze>Tools>ROI Manager… Add, then split and it sticks.

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Great that you figured it out yourself!

In addition, you can always press Shift-E (or Edit > Selection > Restore Selection in the menu) to restore the last active selection on any other image currently focused.

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Cool, thanks, this is very useful too!