通过 BeautifulSoup 从网页下载图像数据 URI [英] Downloading Image Data URIs from Webpages via BeautifulSoup

问题描述

我需要使用 Python 从网站检索图像.但是，图像不是链接文件的形式，而是 GIF 数据 URI.如何下载它并将其存储在 .gif 文件中?

I need to retrieve an image from a website using Python. However, the image is not in the form of a linked file, but as a GIF Data URI. How do I download this and store it in a .gif file?

推荐答案

这应该会让你朝着正确的方向前进.

This should get you going in the correct direction.

首先，我假设您已检索图像 uri 数据并将其保存在名为 img_data 的 python 变量中:

First, I'll assume you have retrieved the image uri data and it is saved in a python variable called img_data:

# Example
img_data = 'data:image/jpeg;base64,/9j/4A...<lots of data>...k='

现在您需要从 base64 解码图片并将其保存到文件中:

Now you'll need to decode the picture from base64 and save it to a file:

import base64

# Separate the metadata from the image data
head, data = img_data.split(',', 1)

# Get the file extension (gif, jpeg, png)
file_ext = head.split(';')[0].split('/')[1]

# Decode the image data
plain_data = base64.b64decode(data)

# Write the image to a file
with open('image.' + file_ext, 'wb') as f:
    f.write(plain_data)

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