When running the QCPA framework for making independent colour maps (moth and background) I can run the framework for the moth but when I try to run it only for the background I keep getting a dialogue box that says ‘The active image does not have a selection’. I’m following the tutorial video step by step and I’ve double checked that the selected background area is saved in the ROI manager so I’m not sure what I’m doing wrong 🙁

Active image does not have a selection
jolyon Answered question May 16, 2019