python通过pil将图片转换成黑白效果

"""
皮蛋编程(https://www.pidancode.com)
创建日期：2022/3/29
功能描述：python通过pil将图片转换成黑白效果
"""
from PIL import Image
image_file = Image.open("pidancode.com.png") # open colour image
image_file = image_file.convert('1') # convert image to black and white
image_file.save('result.png')