How to pixelate GIFs using python?

[Lypheal]

I've been searching for this since months now... How can I pixelate gif using python?

For example from this

to this

How is this possible with python? Please someone help me.

[radarhere]

Running this code over your original image,

from PIL import Image, ImageSequence

def pixelate(frame):
    if frame.mode == "P":
        frame = frame.convert("RGB")
    original_size = frame.size
    # To create the pixelation effect,
    # shrink the image by a factor of 5
    frame = frame.reduce(5)
    # and then resize it back to normal size
    return frame.resize(original_size, Image.Resampling.NEAREST)

# Open the image
with Image.open("in.gif") as im:
    # Run the "pixelate" function over every frame
    frames = ImageSequence.all_frames(im, pixelate)
    # Save it to file
    frames[0].save("out.gif", save_all=True, append_images=frames[1:])

gives

[Lypheal]

How can I run this in google colab?

[radarhere]

1. Upload your input GIF to "Files"
2. !python3 -m pip install --upgrade Pillow. By default, the Pillow version was 7.1.2 when I tried.
3. Restart the runtime so that Pillow is updated.
4. Run the code I pasted above.
5. See the output GIF in "Files"

[Lypheal]

Okay thanks!
Just 1 more question, I have 100s of gifs in a folder I want to pixelate, how do i loop this so that it pixelates all of them without me needing to know the no. of files in that folder?

[radarhere]

Here is code that will loop over all of the GIF files in the current directory, using glob.glob. Alternatively, you could use os.listdir.

import glob
for filename in glob.glob("*.gif"):
    print(filename)

[Lypheal]

Thanks man!
I'm gonna use os.listdir since I don't trust glob nor do I have any experience with it