![]() If you did do that the speed may change, fixed with gifspeedchange input-opt.gif 5 for example, to use a 50ms frame delay. you could have an intermediate file input_reduced_x2.gif (a step that would ~halve file size by dropping every other frame). Also after installing ImageMagick on windows, the commands work there too. gifsicle -O3 -colors 100 \ tmp.gif > output.gif Gifsicle can convert image sequences into GIFs by itself, but I found out that both tools perform better together. That function also works to remove any _reduced_x suffix added by the frame count reduction function, i.e. The different available commands can be found on the Gifsicle Man Page. You could change the function to use the -batch flag for in-place editing but I wouldn't recommend overwriting your starting material. the output would be automatically named input-opt.gif. ![]() With the above function gifopt you could simplify matters, since it defaults to 30 gifopt input.gif The -lossy flag takes an integer from 30 to 200, so for best quality: gifsicle -O3 -lossy=30 -o output.gif input.gif Local newframerate=$(echo "$frame_delay*10" | bc)Įcho "new GIF frame rate: $newframerate ms" Gifsicle -batch -delay $frame_delay $orig_gif According to the tool’s official web page, Gifsicle offers several features, including image optimization as well as control over interlacing, comments, looping, and transparency. I won't describe how I do it all here, the general idea is a few bash functions/aliases: function gifopt() Gifsicle is a command line tool for creating, editing, and getting information about GIF images and animations. My notes on a full gif optimisation workflow are here.Įdit: current script as kept in use will be updated on GitHub here See release 1.82.1 here (replace /usr/bin/gifsicle with the appropriate one for your system (the binary ending with -static). The difference is that ezgif uses a gifsicle modification (with a lossy flag), not available on the apt version. I found a (possibly ancient) command line tool that seems like the right kind of idea, called gifsicle, but if there's a nicer GUI tools someone knows of that I should try first, I'd rather go with that.I use /optimize, as GIMP and other tools aren't good at this job. My searching has mostly turned up online gif editors, which is not really suited to what I'm trying to do. Even so, it may still be my best option just because it's at least automatable. Photoshop want's to load and convert every frame to a layer when a gif is opened, and then re-optimize every (completely unchanged) frame when the gif is saved, so it would spend a lot of extra time doing completely unnecessary work. Photoshop would almost be a good candidate, but unfortunately it can't just change the frame delay number without loading the entire gif. Is there any Windows based GUI or command line software that can do this speed change easily? Here's an example of the average resolution and duration. That likely sounds weird, and it is a bit, but I've been using gifs to capture little slices of gameplay from a game I'm working on. directory containing the GIF images then issue the following command to create the animated GIF all.gif : gifsicle -colors 256 -d 100. I have a few hundred MB of gifs I've created with a 0.04 ms frame delay, and I would like to batch convert them to 0.03 ms frame delay. You can of course run it on other folders, or add it to the system path, and run it wherever. This will convert all gifs found in the gifsicle.exe folder to have 3ms delay for all frames.
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