如何使用PIL(Python-Imaging)反转图像的颜色? [英] How to invert colors of image with PIL (Python-Imaging)?

问题描述

我需要将在黑色背景字母上绘制为白色的一系列图像转换为白色和黑色反转(为负)的图像.如何使用PIL实现此目标?

I need to convert series of images drawn as white on black background letters to images where white and black are inverted (as negative). How can I achieve this using PIL?

推荐答案

尝试从文档中进行以下操作: http ://effbot.org/imagingbook/imageops.htm

Try the following from the docs: http://effbot.org/imagingbook/imageops.htm

from PIL import Image
import PIL.ImageOps    

image = Image.open('your_image.png')

inverted_image = PIL.ImageOps.invert(image)

inverted_image.save('new_name.png')

注意:"ImageOps模块包含许多现成的"图像处理操作.该模块在某种程度上是实验性的，大多数操作员只能处理L和RGB图像."

Note: "The ImageOps module contains a number of 'ready-made' image processing operations. This module is somewhat experimental, and most operators only work on L and RGB images."

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