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As of June 2009 the originally cited blog post has a method to create animated GIFs in the comments. Download the script images2gif.py (formerly images2gif.py, update courtesy of @geographika).

Then, to reverse the frames in a gif, for instance:

#!/usr/bin/env python from PIL import Image, ImageSequence import sys, os filename = sys.argv[1] im = Image.open(filename) original_duration = im.info['duration'] frames = [frame.copy() for frame in ImageSequence.Iterator(im)] frames.reverse() from images2gif import writeGif writeGif("reverse_" + os.path.basename(filename), frames, duration=original_duration/1000.0, dither=0) 

As of June 2009 the originally cited blog post has a method to create animated GIFs in the comments. Download the script images2gif.py (formerly images2gif.py, update courtesy of @geographika).

Then, to reverse the frames in a gif, for instance:

#!/usr/bin/env python from PIL import Image, ImageSequence import sys, os filename = sys.argv[1] im = Image.open(filename) original_duration = im.info['duration'] frames = [frame.copy() for frame in ImageSequence.Iterator(im)] frames.reverse() from images2gif import writeGif writeGif("reverse_" + os.path.basename(filename), frames, duration=original_duration/1000.0, dither=0) 

As of June 2009 the originally cited blog post has a method to create animated GIFs in the comments. Download the script images2gif.py.

Then, to reverse the frames in a gif, for instance:

#!/usr/bin/env python from PIL import Image, ImageSequence import sys, os filename = sys.argv[1] im = Image.open(filename) original_duration = im.info['duration'] frames = [frame.copy() for frame in ImageSequence.Iterator(im)] frames.reverse() from images2gif import writeGif writeGif("reverse_" + os.path.basename(filename), frames, duration=original_duration/1000.0, dither=0) 

As of June 2009 the originally cited blog post has a method to create animated GIFs in the comments. Download the script images2gif.py (formerly images2gif.py, update courtesy of @geographika).

Then, to reverse the frames in a gif, for instance:

#!/usr/bin/env python from PIL import Image, ImageSequence import sys, os filename = sys.argv[1] im = Image.open(filename) original_duration = im.info['duration'] frames = [frame.copy() for frame in ImageSequence.Iterator(im)] frames.reverse() from images2gif import writeGif writeGif("reverse_" + os.path.basename(filename), frames, duration=original_duration/1000.0, dither=0) 

As of June 2009 the originally cited blog post has a method to create animated GIFs in the comments. Download the script images2gif.py.

For instance, to reverse the frames in a gif:

#!/usr/bin/env python from PIL import Image, ImageSequence im = Image.open("frog.gif") original_duration = im.info['duration'] index = 1 frames = [] for frame in ImageSequence.Iterator(im): # frame.save("frame%d.png" % index) frames.append( frame.copy() )  index += 1  frames.reverse() from images2gif import writeGif writeGif("reverse_frog.gif", frames, duration=original_duration/1000.0, dither=0) 

As of June 2009 the originally cited blog post has a method to create animated GIFs in the comments. Download the script images2gif.py.

Then, to reverse the frames in a gif, for instance:

#!/usr/bin/env python from PIL import Image, ImageSequence import sys, os filename = sys.argv[1] im = Image.open(filename) original_duration = im.info['duration'] frames = [frame.copy() for frame in ImageSequence.Iterator(im)] frames.reverse()   from images2gif import writeGif writeGif("reverse_" + os.path.basename(filename), frames, duration=original_duration/1000.0, dither=0)