Screenshot colour averaging of rectangles

Question

I wrote a quick python script to return the average colour of rectangles surrounding the perimeter of my screen. (The end goal here is to have RGB LED strips surrounding my moni

Answer 1

To speed up a resize operation you can do it in two steps. Use NEAREST for the first one to cut down the number of pixels in the fastest way possible, then ANTIALIAS to merge those into a representative sample. It's equivalent to the step size you experimented with earlier, done with PIL functions.

PIL.ImageGrab.grab().resize((150, 100), PIL.Image.NEAREST).resize((15, 10), PIL.Image.ANTIALIAS)