Hacked-together code to read an IRG file's image

read-irg.py

from PIL import Image, ImageDraw

WIDTH = 180
HEIGHT = 240

im = Image.new("L", (WIDTH, HEIGHT))

with open("230119180929.irg", "rb") as in_file:
    in_file.seek(0x7E)
    draw = ImageDraw.Draw(im)
    y = 0
    while y < HEIGHT:
        x = 0
        line_bytes = in_file.read(WIDTH)
        for byte in line_bytes:
            draw.point((x, y), byte)
            x += 1
        y += 1
    im.save("output.png")