# Tk_RGB_ani.py

# Tk_RGB_ani.py

from tkinter import *
from PIL import Image, ImageTk
import random
import math
import time

ww = 270
hh = 270
root = Tk()
root.title("Tk RGB")
root.geometry("%dx%d+0+0"%(ww,hh))
canvas = Canvas(root, width=ww, height=hh)
canvas.grid()

img = Image.new("RGB",(ww,hh), "white")

cc = {}
for x in range(ww):
    for y in range(hh):
        cc[x,y] = 0

xy = []
x2 = 256.0/ww
y2 = 256.0/hh
for y in range(hh):
    b = int(y*y2)
    for x in range(ww):
        a = int(x*x2)
        c = cc[a,b]
        xy += [(a,b,c)]
        cc[a,b] = c+1
0
animate = list(map(list, xy))
while 1:
    img.putdata(xy)
    imgTk = ImageTk.PhotoImage(img)
    canvas.create_image(0, 0, anchor=NW, image=imgTk)
    root.update()
    xy = []
    for i,rgb in enumerate(animate):
        ttt = []
        for j,v in enumerate((7,9,11)):
            t = rgb[j]-v
            if t < -255:
                t = 255
            ttt += [abs(t)]
            animate[i][j] = t
        xy += [tuple(ttt)]