chrpicon.py

# Quick and dirty script to turn a 16x16 image into 8-bit color values.
# Made to create icons for use in a CHRP script. Debian logo example:
# 0000000000C1C1C1C5C1C5EE00000000
# 00000000C1C1C1C1C1C1C1C1C1000000
# 000000C1C1C1C1000000C5C1C1C10000
# 0000C1C1C1C10000000000C1C1C10000
# 0000C5C1C10000C1C1C1C100C1C10000
# 0000C1C1000000C50000C900C1C50000
# 0000C1C50000C1C10000C500C1C10000
# 0000C1000000C1C10000C900C1C50000
# 0000C1C10000C5C100C500C1C5000000
# 0000C1C50000C9C5C1C1C1C1C1000000
# 0000C1C1EE0000C1C1C1C10000000000
# 0000C1C1C10000000000000000000000
# 000000C1C10000000000000000000000
# 00000000C1C100000000000000000000
# 00000000C1C1C5000000000000000000
# 000000000000C1C1C100000000000000

from PIL import Image
from more_itertools import chunked
img = Image.open('image.png')
pixels = []

for i in range(0, 16):
    for j in range(0, 16):
        pixels.append(img.getpixel((j, i)))

values = []
for pixel in pixels:
    red = format(int((pixel[0] * 8) / 256), 'b').zfill(3)
    green = format(int((pixel[1] * 8) / 256), 'b').zfill(3)
    blue = format(int((pixel[2] * 4) / 256), 'b').zfill(2)
    values.append(format(int(red + green + blue, 2), 'X').zfill(2))

for chunk in chunked(values, 16):
    print(''.join(chunk))