python实现图片变亮或变暗的方法分析

googler_offer

于 2019-06-17 15:21:45 发布

阅读量4.8k

点赞数

CC 4.0 BY-SA版权

分类专栏：深度学习=====keras搬砖系列 Python-numpy

本文链接：https://blog.youkuaiyun.com/googler_offer/article/details/92631915

深度学习=====keras搬砖系列同时被 2 个专栏收录

55 篇文章

订阅专栏

Python-numpy

2 篇文章

订阅专栏

博客主要介绍通过Python实现图片变亮或变暗的方法。将通过具体实例，展示实现图片亮度调整的详细步骤和相关技巧，聚焦于信息技术中Python图像处理方面。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

python实现图片变亮或变暗是如何来实现的呢？下面的内容将会通过具体的实例来演示python实现图片变亮或变暗的实现方法及相关技巧：

import Image
# open an image file (.jpg or.png) you have in the working folder
im1 = Image.open("angelababy.jpg")
# multiply each pixel by 0.9 (makes the image darker)
# works best with .jpg and .png files, darker < 1.0 < lighter
# (.bmp and .gif files give goofy results)
# note that lambda is akin to a one-line function
im2 = im1.point(lambda p: p * 0.5)
# brings up the modified image in a viewer, simply saves the image as
# a bitmap to a temporary file and calls viewer associated with .bmp
# make certain you have associated an image viewer with this file type
im2.show()
# save modified image to working folder as Audi2.jpg
im2.save("angelababy2.jpg")