If you investigate bleaching you could also consider converting to a different colour space (HSV) where the S channel represents colour saturation. I guess this can work as a direct measurement of the degree of bleaching. So convert to HSV and do histograms of the three channels separately. Be aware that the H channel "Hue" is a circular representation of angle, so the endpoints might not suit your case. You can circumvent this by shifting the values 180 degrees.
Stein -----Original Message----- From: Andre Briscoe <[email protected]> Sent: 27. februar 2024 19:53 Subject: Histogram help Hello, I am currently working on designing a method to use ImageJ to estimate bleaching in corals using the histogram function and was wondering what is being represented in the R+G+B graph in case it is the graph best suited for what I am trying to do. Does anyone happen to know? Best, Andre Briscoe PhD Student NSF CREST Center for Aquatic Chemistry and Environment Institute of Environment, an FIU Preeminent Program -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html
