Python 2.7从非默认目录中打开多个文件(对于opencv) [英] Python 2.7 opening multiple files from non-default directory (for opencv)

问题描述

我在64位win7上使用python 2.7，并且具有opencv 2.4.x.

I'm using python 2.7 on 64 bit win7 and have opencv 2.4.x.

当我编写cv2.imread('pic')时，它将在我的默认python路径C:\Users\Myname中打开pic.但是，我将如何设法浏览不同的目录以打开图像?即D:\MyPicLib.

When I write cv2.imread('pic') it opens pic in my default python path which is C:\Users\Myname. But how I will manage to browse different directory to open images? ie D:\MyPicLib.

同时，我不想更改默认目录，因为我所有的python模块都保存在C:\Users\Myname中. 我只想管理<​​c1>

Meanwhile, I do not want to change default directory, because all my python modules are saved in C:\Users\Myname. I just want to manage connecting pictures in D:\MyPicLib

在这部分之后，您还可以帮助我在for/while循环中浏览多个图像(特定格式，例如目录中的.jpg)而不是一个图像吗?

After this part, can you also help me to browse not one but multiple images (in specific format, like just .jpg's in a directory) in for/while loop?

预先感谢您，问题似乎很简单，但是尽管我付出了所有努力，但我没有找到任何更改默认python路径的解决方案.

Thank you in advance, the problem seems easy but despite all my effort, I did not find any solution on changing default python path.

推荐答案

这是您要找的东西吗?我建议寻找一些显示基本os和os.path用法的教程.它们是非常有用的工具. 这里是我找到的第一个.

Is this what you are looking for? I recommend looking for some tutorials that show basic os and os.path usage. They are very useful tools. Here is the first one I found.

import os
import cv2

mypath = os.path.join('c:\\', 'asdf', 'jkl')

images = list()
for item in os.listdir(mypath):
    if '.jpg' in item:  # this could be more correctly done with os.path.splitext
        image = cv2.imread(os.path.join(mypath, item))
        if image is not None:
            images.append(image)

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