Python:将 GIF 帧转换为 PNG

Question

我是 python 的新手，试图用它来将 GIF 的帧拆分为 PNG 图像。

# Using this GIF: http://www.videogamesprites.net/FinalFantasy1/Party/Before/Fighter-Front.gif

from PIL import Image

im = Image.open('Fighter-Front.gif')
transparency = im.info['transparency'] 
im.save('test1.png', transparency=transparency)

im.seek(im.tell()+1)
transparency = im.info['transparency'] 
im.save('test2.png', transparency=transparency)

# First frame comes out perfect, second frame (test2.png) comes out black,
# but in the "right shape", i.e. 
# http://i.stack.imgur.com/5GvzC.png

这是特定于我正在处理的图像还是我做错了什么？

谢谢!

Answer 1

我不认为你做错了什么。在此处查看类似问题:animated GIF problem .似乎调色板信息没有为后面的帧正确处理。以下对我有用:

def iter_frames(im):
    try:
        i= 0
        while 1:
            im.seek(i)
            imframe = im.copy()
            if i == 0: 
                palette = imframe.getpalette()
            else:
                imframe.putpalette(palette)
            yield imframe
            i += 1
    except EOFError:
        pass

for i, frame in enumerate(iter_frames(im)):
    frame.save('test%d.png' % i,**frame.info)