使用Python从GIF提取关键帧 [英] Extract key frames from GIF using Python

问题描述

我想通过从GIF中提取15个最好是不同的帧来压缩GIF图像.

I want to compress a GIF image by extracting 15 frames from the GIF that preferably should be distinct.

我正在使用Python和Pillow库，但在枕头对此进行了限制.

I'm using Python and Pillow library and I didn't find any way to get the number of frames a GIF has in the Pillow docs. Neither did I find how to extract a specific frame from a GIF, because Pillow restricts that.

是否有任何方法可以提取帧而无需遍历每个帧?是否有用于GIF处理的更高级的Python库?

Is there any way to extract frames without iterating through each frame consequently? Is there a more advanced Python library for GIF processing?

推荐答案

这里是@radarhere答案的扩展，它将.gif分为 num_key_frames 个不同的部分，并将每个部分保存到新图像中.

Here is an extension of @radarhere's answer that divides the .gif into num_key_frames different parts and saves each part to a new image.

from PIL import Image

num_key_frames = 8

with Image.open('somegif.gif') as im:
    for i in range(num_key_frames):
        im.seek(im.n_frames // num_key_frames * i)
        im.save('{}.png'.format(i))

结果被 somegif.gif 分成8个，另存为 0 .. 7.png .

The result is somegif.gif broken into 8 pieces saved as 0..7.png.

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