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pixelcmtd/brighten.py

Last active July 25, 2025 19:01
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brighten.py
#!/usr/bin/python3
# this is just a small script to brighten an image by 30%,
# which should probably be done in plain gimp, but idc
from PIL import Image
from sys import argv, exit
if len(argv) < 3:
print('usage: {} [input] [output]'.format(argv[0]))
exit(1)
input = Image.open(argv[1]).convert(mode='L')
whitebytes = b''
for i in range(0, input.size[0] * input.size[1]):
whitebytes += b'\xff'
white = Image.frombytes(mode='L', size=input.size, data=whitebytes)
Image.blend(input, white, 0.3).save(argv[2])
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