Replace input.gif and output.gif with the input and output file names, and 99 with the number of frames in your animation. $ LDFLAGS="-L/system/lib/" CFLAGS="-I/data/data/com. 5 Answers Sorted by: 35 Heres a simpler solution using gifsicle than JohnBs script: gifsicle -U input.gif seq -f 'g' 0 2 99 -O2 -o output.gif This command should work in most Unix shells Ive tested it in bash. It should provide a solid foundation for a general image processing tool. Extracting frames from animations is easy too: gifsicle anim.gif '0' > firstframe.gif. Making a GIF animation with gifsicle is easy: gifsicle -delay10 -loop. The core image library is designed for fast access to data stored in a few basic pixel formats. Gifsicle is a command-line tool for creating, editing, and getting information about GIF images and animations. This library provides extensive file format support, an efficient internal representation, and fairly powerful image processing capabilities. I showed you how to merge and optimize animated GIFs with gifsicle, and now lets look at resizing animated GIFs. The Python Imaging Library adds image processing capabilities to your Python interpreter. My favorite image manipulation utility, ImageMagick, doesnt seem to be the best utility for animated GIFs - another utility called gifsicle is as good as it gets. PNG optimizer that recompresses image files to a smaller size, without losing any information Toolkit for manipulation of graphic images, including conversion of images between a variety of different formatsĬommand-line tools using the JPEG 2000 library Suite to create, edit, compose, or convert images in a variety of formats If that doesnt suit you, our users have ranked more than 25 alternatives to Gifsicle and many of them are available for Windows so hopefully you can find a suitable replacement. Tool for creating, editing, and getting information about GIF images and animationsįormat-independent image processing - C shared library The best Windows alternative is ImageMagick, which is both free and Open Source. llms Running LLaMA 7B and 13B on a 64GB M2 MacBook Pro with llama.Raw digital camera images decoding utility.mediawiki How to run MediaWiki with SQLite on a macOS laptop - Depending on command line options, it can merge several GIFs into a GIF animation explode an animation into its component frames change individual frames in an animation turn interlacing on and off add transparency add delays, disposals, and looping to animations add and remove comments.twitter Exporting and editing a Twitter Spaces recording.macos Shrinking PNG files with pngquant and oxipng.gifsicle has three types of GIF optimization to choose from:-O1 Stores only the changed portion of each image. gifsicle can resize GIFs, merge GIFs, and do just about anything you'd hope you could do with a GIF. Also after installing ImageMagick on windows, the commands work there too. Gifsicle can convert image sequences into GIFs by itself, but I found out that both tools perform better together. gifsicle -O3 -colors 100 \ tmp.gif > output.gif. The distance can be in absolute intensity units or, by appending % as a percentage of the maximum possible intensity (255, 65535, or 4294967295). Before jumping into the GIF optimization commands, it's important to point out that gifsicle is much more than a GIF optimizer. The different available commands can be found on the Gifsicle Man Page. The -fuzz 7% option is documented here - it treats similar colours as the same colour: I ran this against this 1.3MB animated GIF: This saves over the original, so make a copy of it first. Which gave me a 723KB file which I think looks good enough for my purposes:įound this tip on Stack Overflow: to reduce the site of an animated GIF, you can use the mogrify tool like this: mogrify -layers 'optimize' -fuzz 7% sqlite-convert-demo.gif So I tried this instead: gifsicle -O3 -colors 128 -lossy -o datasette-launch-smaller-2.gif datasette-launch.gif The reduced colours there were a bit too much for me, especially for the purple gradient buttons at the end. rw-r-r- 1 simon wheel 613K Sep 13 12:54 1 simon wheel 3.7M Sep 13 12:52 datasette-launch.gif tmp % gifsicle -O3 -colors 48 -lossy -o datasette-launch-smaller.gif datasette-launch.gif I installed it using brew install gifsicle and ran it like this: /tmp % ls -lah 1 simon wheel 3.7M Sep 13 12:52 datasette-launch.gif You can tweak the number of colours and loss to get it smaller but that’s when it starts to look worse to my eyes Saw your GIF size TIL, and gifsicle -O3 -colors 48 -lossy gets it down to 320k. Simon Willison’s TILs Compressing an animated GIF with gifsicle or ImageMagick mogrify Using gifsicle Compressing an animated GIF with gifsicle or ImageMagick mogrify | Simon Willison’s TILs
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