Python: Converting GIF frames to PNG
Question: I'm very new to python, trying to use it to split the frames of a GIF into PNG
images.

    
    
    # 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
    

Is this specific to the image I'm working with or am I doing something wrong?

Thanks!


Answer: I don't think you're doing anything wrong. See a similar issue here: [animated
GIF problem](http://code.activestate.com/lists/python-image-sig/5245/). It
appears as if the palette information isn't correctly treated for later
frames. The following works for me:

    
    
    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)
    

