pildriver.py 文件源码

def do_difference(self):
        """usage: difference <image:pic1> <image:pic2>

        Pop the two top images, push the difference image
        """
        from PIL import ImageChops
        image1 = self.do_pop()
        image2 = self.do_pop()
        self.push(ImageChops.difference(image1, image2))