I am trying to map the change over time of a marine sponge. I have 1000s of RGB images. I was trying to classify -sponge and not sponge within an ROI - a small rectangle around the sponge. my thoughts are supervised image classi https://nox.tips/ fication but I'm having trouble with classification part. And then I need to apply this classification on all the images (within only the ROI around the sponge)....I'm having some trouble with what tools I should apply to this problem. It's just been a few years since I've used ENVI so I was hoping for some suggestions on how to approach this problem! Thank you :)!

issue got solved!!