crossed_squares

import math
import random
from PIL import Image

RES_X=1024
RES_Y=1024

def pixel(x,y):
    if math.floor(x/256)%2 == 0:
        red = x % 256
    else:
        red = 256 - (x%256)

    if math.floor(y/256)%2 == 0:
        blue = y % 256
    else:
        blue = 256 - (y%256)

    green = math.floor(math.sqrt(red*blue))

    if y-100 < x < y + 100 :
        blue -= 50
        red -= 50

    if y-100 < RES_X-x < y + 100 :
        blue += 50
        red += 50

    return (math.floor(red), math.floor(green), math.floor(blue))


img = Image.new("RGB",(RES_X,RES_Y))
for x in range(RES_X):
    for y in range(RES_Y):
        img.putpixel((x,y),pixel(x,y))

img.save("result.png")