图像无法使用 python 图像库打开 [英] Image does not open with python imaging library

问题描述

我刚刚安装了 Python 镜像库并开始学习它，但我无法打开图像文件.

I have just installed the Python imaging library and started to learn it but I cannot sem to open the image file.

    import Image
    im = Image.open("Desert.jpg")
    print im.format, im.size, im.mode
    im.show()

图像属性打印得很好，但是当图像在 Windows 查看器中打开时，我收到错误

the image attributes are printed fine but when the image opens in windows viewer, I get the error

     File "C:\Python27\Lib\site-packages\pythonwin\pywin\framework\scriptutils.py" 
     ,line 325, in RunScript           
     exec codeObject in __main__.__dict__
     File "C:\Users\Hassan\Documents\imtest.py", line 2, in <module>
     im = Image.open('Desert.jpg')
     File "C:\Python27\lib\site-packages\PIL\Image.py", line 1952, in open
     fp = __builtin__.open(fp, "rb")
     IOError: [Errno 2] No such file or directory: 'Desert.jpg' 

我已将文件 Desert.jpg 放在保存此脚本的同一目录中.我应该如何打开此文件.

I have placed the file Desert.jpg in the same directory where this script is saved.What should I do to open this file.

推荐答案

使用绝对路径.您可以获取脚本的路径以创建该路径:

Use an absolute path. You can get the path of the script to create that path:

import os.path

script_dir = os.path.dirname(os.path.abspath(__file__))
im = Image.open(os.path.join(script_dir, 'Desert.jpg'))

否则，相对文件(任何没有绝对路径的文件)都是相对于当前工作目录打开的，这完全取决于您如何启动脚本和您的操作系统默认设置.

Otherwise, relative files (anything without an absolute path) are opened relative to the current working directory, and that depends entirely on how you started the script and your operating system defaults.

__file__ 变量是当前模块的文件名，os.path 调用确保它是一个完整的绝对路径(所以在 Windows 上包括驱动器，启动在 POSIX 系统上使用 /)，然后我们只从中取出目录部分.

The __file__ variable is the filename of the current module, the os.path calls ensure it is a full absolute path (so including the drive when on Windows, starting with a / on POSIX systems), from which we then take just the directory portion.

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