Python code for visual cryptography

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Python

I need the python code for Visual Cryptography.
An image is spilted into two using the visual cryptographic technique. And these two image share overlapped together to get the original image.

If the below pasted code is correct, I need code for the overlapping section of the image shares.

What I have tried:

I tried the image spilting section



from PIL import Image

import random
import sys


image = Image.open(r"C:\Users\JAISON\Desktop\miniproject\Visual cryptography\unicode-text.png")
image = image.convert('1')

outfile1 = Image.new("1", [dimension * 2 for dimension in image.size])

outfile2 = Image.new("1", [dimension * 2 for dimension in image.size])

for x in range(0, image.size[0], 2):
for y in range(0, image.size[1], 2):
sourcepixel = image.getpixel((x, y))
assert sourcepixel in (0, 255)
coinflip = random.random()
if sourcepixel == 0:
if coinflip < .5:
outfile1.putpixel((x * 2, y * 2), 255)
outfile1.putpixel((x * 2 + 1, y * 2), 0)
outfile1.putpixel((x * 2, y * 2 + 1), 0)
outfile1.putpixel((x * 2 + 1, y * 2 + 1), 255)

outfile2.putpixel((x * 2, y * 2), 0)
outfile2.putpixel((x * 2 + 1, y * 2), 255)
outfile2.putpixel((x * 2, y * 2 + 1), 255)
outfile2.putpixel((x * 2 + 1, y * 2 + 1), 0)
else:
outfile1.putpixel((x * 2, y * 2), 0)
outfile1.putpixel((x * 2 + 1, y * 2), 255)
outfile1.putpixel((x * 2, y * 2 + 1), 255)
outfile1.putpixel((x * 2 + 1, y * 2 + 1), 0)

outfile2.putpixel((x * 2, y * 2), 255)
outfile2.putpixel((x * 2 + 1, y * 2), 0)
outfile2.putpixel((x * 2, y * 2 + 1), 0)
outfile2.putpixel((x * 2 + 1, y * 2 + 1), 255)
elif sourcepixel == 255:
if coinflip < .5:
outfile1.putpixel((x * 2, y * 2), 255)
outfile1.putpixel((x * 2 + 1, y * 2), 0)
outfile1.putpixel((x * 2, y * 2 + 1), 0)
outfile1.putpixel((x * 2 + 1, y * 2 + 1), 255)

outfile2.putpixel((x * 2, y * 2), 255)
outfile2.putpixel((x * 2 + 1, y * 2), 0)
outfile2.putpixel((x * 2, y * 2 + 1), 0)
outfile2.putpixel((x * 2 + 1, y * 2 + 1), 255)
else:
outfile1.putpixel((x * 2, y * 2), 0)
outfile1.putpixel((x * 2 + 1, y * 2), 255)
outfile1.putpixel((x * 2, y * 2 + 1), 255)
outfile1.putpixel((x * 2 + 1, y * 2 + 1), 0)

outfile2.putpixel((x * 2, y * 2), 0)
outfile2.putpixel((x * 2 + 1, y * 2), 255)
outfile2.putpixel((x * 2, y * 2 + 1), 255)
outfile2.putpixel((x * 2 + 1, y * 2 + 1), 0)

outfile1.save('out1.jpg')
outfile2.save('out2.jpg')