I don't remember. I think it deduped sprites. will read later

sprite_dedup.py

from PIL import Image
import tempfile
import os
from math import ceil, sqrt
# import argparse

imgpath = input('What is the path to the image? ')
img = Image.open(imgpath)
img_width = img.size[0]
img_height = img.size[1]
# xtiles = input('How many x tiles does the image have? ')
# ytiles = input('How many y tiles does the image have? ')
xchunk = int(input('What is the tile width? '))
ychunk = int(input('What is the tile height? '))
xtiles = img_width//xchunk
ytiles = img_height//ychunk

# xchunk = img_width//xtiles
# ychunk = img_height//ytiles

sprites = []
for i in (a*xchunk for a in range(xtiles)):
    for j in (a*ychunk for a in range(ytiles)):
        sprite = img.crop(box=(
            i, j, i+xchunk, j+ychunk))
        sprites.append(sprite)

for i, sprite in enumerate(sprites):
    for j, other in enumerate(sprites[i+1:]):
        if sprite == other:
            sprites.remove(sprite)
            print('removed duplicate')

compiled_tiles = ceil(sqrt(len(sprites)))
compiled_height = (ychunk and xchunk) * compiled_tiles

compiled_img = Image.new(
    mode='RGBA',
    size=(compiled_height,)*2,
    color=(0, 0, 0, 1))

for i in (a*xchunk for a in range(compiled_tiles)):
    for j in (a*ychunk for a in range(compiled_tiles)):
        if not sprites:
            break
        sprite = sprites.pop()
        compiled_img.paste(sprite, (i, j))

compiled_img.save('compiled.png')
print('saved in `compiled.png`')