Работа с модулем Pillow

import random
from PIL import Image, ImageDraw, ImageFont,ImageOps
 
image = Image.open("D:\\02.png")
draw = ImageDraw.Draw(image)
width = image.size[0]
height = image.size[1]
pix = image.load()
factor = 250
for i in range(0,650):
for j in range(520,1080):
rand = random.randint(-factor, factor)
a = pix[i,j][0] + rand
b = pix[i,j][1] + rand
c = pix[i,j][2] + rand
if (a < 0):
a = 0
if (b < 0):
b = 0
if (c < 0):
c = 0
if (a > 255):
a = 255
if (b > 255):
b = 255
if (c > 255):
c = 255
draw.point((i, j), (a, b, c))
factor = 250
for i in range(1250,1920):
for j in range(520,1080):
rand = random.randint(-factor, factor)
a = pix[i, j][0] + rand
b = pix[i, j][1] + rand
c = pix[i, j][2] + rand
if (a < 0):
a = 0
if (b < 0):
b = 0
if (c < 0):
c = 0
if (a > 255):
a = 255
if (b > 255):
b = 255
if (c > 255):
c = 255
draw.point((i, j), (a, b, c))
idraw = ImageDraw.Draw(image)
draw.rectangle((1600,0,1920,150), fill='white',outline=(24,21,19))
img_border = ImageOps.expand(image, border=100, fill='white')
text = "Forza"
font = ImageFont.truetype("arial.ttf", size=48)
idraw.text((1700, 50), text, font=font, fill = 'black')
draw.rectangle((0,1080,10,0), fill='white')
draw.rectangle((1920,10,10,0), fill='white')
draw.rectangle((1910,1200,1920,0), fill='white')
draw.rectangle((0,1070,1920,1080), fill='white')
image.show()

a=min(255, max(0,a))