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I stumbled on ImageJ and think it might be of use. I have some programming experience, but I am know nothing on ImageJ yet.
I am working on a special camera for looking at plant stress. The camera takes a picture where visible light goes into the blue channel and near infrared into the red channel. One way to measure plant stress is something called NDVI which is (IR-Visible)/(IR+Visible). In this case, it would be (Red-Blue)/(Red+Blue). Result will be between +1.0 and -1.0.
I would like to process the image with this calculation and display a new image. Perhaps 100% blue would equal -1.0 and +1.0 = 100% red. So, 0 = 50% red, 50% blue.
Can someone give me a pointer on how to start?
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