cv2

im.py

def imread_yazo(filename, flag):
  with open(filename, "rb") as f:
    return cv2.imdecode(f.read(),  flag)
  
def imwrite_yazo(filename, img, flag):
  with open(filename, "wb") as f:
    ext = os.path.splitext(filename)[1]
    f.write(cv2.imencode(ext, img, flag))