asciicam.py

import cv2
import os
import sys

cap = cv2.VideoCapture(0)
height, width = map(int, os.popen('stty size', 'r').read().split())
write = sys.stdout.write

try:
  while(True):
    ret, frame = cap.read()
    frame = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
    frame = cv2.resize(frame, (width, height))
    write('\u001b[1;1H' + '\n'.join(''.join(" .',:;clxokXdO0KN"[c//16] for c in row) for row in frame))
except KeyboardInterrupt:
  pass
finally:
  cap.release()
  cv2.destroyAllWindows()