I have an image with 3 layers (R,G,B). I want to show each layer as a cateogorised image as I can define the range of values in each category. I also want to add a legend as it show the range of values and the assigned color, a map scale (in kilometer) and geographical north direction. for eaxample I want to show the layer 1 as: 0.05-0.1>>blue 0.1-0.15>>green 0.15-0.2>>yellow 0.2-0.25>>red
Could you please help me about that?