python_pillow实现掩膜

from PIL import Image

#目标地址
target='原来图片.jpg'

#二值图地址
decorate='装饰图片.jpg'

class ImageCut:
    def cover(self, target, decorate):

        # 分别打开2张图片
        image_target = Image.open(target)
        image_decorate = Image.open(decorate)

        # todo 校验图片长宽相等
        image_target_width = image_target.width
        image_target_height = image_target.height

        image_decorate_width = image_decorate.width
        image_decorate_height = image_decorate.height

        # 对比像素点
        for h in range(image_target_height):
            for w in range(image_target_width):
                # 打印该图片的所有点
                # print(image_decorate.getpixel((w, h)), end=" ")
                # 判断像素点是否为约定好的  255, 255, 255--白色
                if (image_decorate.getpixel((w, h)) !=(255, 255, 255)):
                    # 设定目标图片像素点为 255, 255, 255
                    image_target.putpixel((w, h), (255, 255, 255))
            print('\n')
        # 保存处理后的图片
        image_target.save('---生成后的图片---.jpg')


#调用
ImageCut().cover(target,decorate)

遍历像素点，能实现功能但是效率很低。