averagecolor.py

def average_color(image):
    w,h = image.size
    x0,y0 = (0,0)
    x1,y1 = (w,h)

    r,g,b = 0,0,0
    area = w*h

    for x in range(x0, x1):
        for y in range(y0, y1):
            cr,cg,cb = image.getpixel((x,y))
            r+=cr
            g+=cg
            b+=cb

    return (r/area, g/area, b/area)