Here is my problem. I am trying to do a ListPlot of histo (defined below). However, when I try to do a ListPlot, it says that histo is not a list. In doing a Head[histo], it classifies it as a BinCount and not a list. Also, I checked and Flatten[pixelvalues[[All, All, 1]]] is in fact a list. Can someone show me what is going wrong. Is there a package that is not installed? Thanks.
Flatten[pixelvalues[[All, All, 1]]]]