#!/usr/bin/env python3 import numpy as np from PIL import Image import os directory = 'images/correctresolution/' totalFrames = len(os.listdir(directory)) for i in range(totalFrames): # I mean. Shit. It does it for me. # But this converts the pngs to pbms (P4) f = os.path.join(directory, "thumb-" + str(i) + ".png") im = Image.open(f).convert('1') im.save("pbm/" + str(i) + ".pbm")