Currently, I have an RGB stack. There is a range of colors which I am trying to isolate and quantify using intensity or some other method. I was wondering if there is anyway to isolate a range of colors, and then make a new stack with just that range of colors. Is there a plugin or anything that can do this? The overall goal is to quantify the amount of a protein in tissue, and that protein is green in the stacked images. Any help would be greatly appreciated.