I read Ben Nadel's recent ColdFusion post on Exploring Color Histograms In GraphicsMagick And Lucee CFML 188.8.131.52 and thought I'd compare it with ImageMagick.
ImageMagick returns a list of color data in a low-to-high order. I used ReMatch to identify the hex colors via regex, generated an array and then reversed it.
NOTE: I wanted to compare performance using Ben's script, but his "Lucee CFML" script wasn't written to be compatible with ColdFusion 2016. :(
colors = extractPalette(imagePath, numberOfColors);