Resize GIF animation, pil/imagemagick, python

python imagemagick python-imaging-library gif pythonmagick
eshlox picture eshlox · Apr 3, 2012 · Viewed 10k times · Source

I want to change size of GIF animation image using python and PIL or PythonMagick. I can't find solution. PIL and thumbnail method works for jpg and png but not for gif. ImageMagick has command mogrify/convert -resize '1280x1024>' but i can't find documentation and i don't know how to do it with pythonmagick.

Anyone knows solution?

In the worst case i use os/subprocess and convert ;-S

Thanks.

Answer

fraxel picture fraxel · Apr 5, 2012

You can use PIL and images2gif, a short PIL based module linked to on this blog page, and available here. Code used to process this rose.gif is below. I set the images2gif.readGif 'read as numpy array' property to false in order to get a list of PIL images so as I could use the PIL thumbnail function.

Orignial: rose Processed: small rose

import Image
import images2gif

frames = images2gif.readGif("rose.gif",False)
for frame in frames:
    frame.thumbnail((100,100), Image.ANTIALIAS)

images2gif.writeGif('rose99.gif', frames)

I'm not sure how to preserve transparency, my attempts to do so have failed (so far).

Related questions

Converting a PDF to a series of images with Python

I'm attempting to use Python to convert a multi-page PDF into a series of JPEGs. I can split the PDF up into individual pages easily enough with available tools, but I haven't been able to find anything that can covert …

Read More
Trim whitespace using PIL

Is there a simple solution to trim whitespace on the image in PIL? ImageMagick has easy support for it in the following way: convert test.jpeg -fuzz 7% -trim test_trimmed.jpeg I found a solution for PIL: from PIL import …

Read More
Convert HTML string to an image in Python

I want to convert following HTML to PNG image in Python. <html> <b>Bold text</b> </html> This HTML is, of course, an example. I have tried 'pisa' but it converts html …

Read More