发布于 2016-01-17 21:07:54 | 222 次阅读 | 评论: 0 | 来源: 网友投递
Python编程语言
Python 是一种面向对象、解释型计算机程序设计语言,由Guido van Rossum于1989年底发明,第一个公开发行版发行于1991年。Python语法简洁而清晰,具有丰富和强大的类库。它常被昵称为胶水语言,它能够把用其他语言制作的各种模块(尤其是C/C++)很轻松地联结在一起。
这篇文章主要介绍了python实现图片变亮或者变暗的方法,涉及Python中Image模块操作图片的相关技巧,需要的朋友可以参考下
本文实例讲述了python实现图片变亮或者变暗的方法。分享给大家供大家参考。具体实现方法如下:
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")
运行效果如下所示: