To install pngquant, execute the following command at your. You can use scale to easily scale an image by a given factor, but you can also use -resize-fit-height or -resize-fit-width to scale to respective sizes. We will going to use pngquant to optimize png image files, mozjpeg for jpeg and gifsicle for gif. Gifsicle -resize 300x200 -i animation.gif > animation-clipped.gif ffmpeg -i recording.mov result.gif That was the simplest command, now. Gifsicle -resize-fit-height 100 -i animation.gif > animation-100px.gif Convert video to GIF In Terminal navigate to the folder with the video you want to convert and run the command to create a GIF. To do this, we’ll need to add the -crop option: 1. Of course, that’s just going to give us a Gif that’s 150px tall, but not a 150×150 square. gifsicle -resize 267x150 original.gif > resized.gif. # Scale to a given height with unspecified width With these numbers at hand, we can ask Gifsicle to resize our image to 267×150: 1. Gifsicle -resize-fit-width 300 -i animation.gif > animation-300px.gif fix: gifsicle 5.3.0->5.2.1 cnpm/bug-versions160 sindresorhus completed on sindresorhus mentioned this issue on 5.3.0 is error 134 Closed added a commit to Jiasm/bug-versions that referenced this issue cd2b04c Jiasm mentioned this issue on fix: Remove gifsicle 5.3.0 -> 5.2. # Scale to a given width with unspecified height Gifsicle -scale 0.5 -i animation.gif > animation-smaller.gif That's nice but you want to keep the GIF animated, right? Here are a few easy methods for resizing a GIF with gifsicle: If you try to use ImageMagick's basic resize functionality, you'll end up getting the first frame output to the correct size. I showed you how to merge and optimize animated GIFs with gifsicle, and now let's look at resizing animated GIFs. My favorite image manipulation utility, ImageMagick, doesn't seem to be the best utility for animated GIFs - another utility called gifsicle is as good as it gets. Replace input.gif and output.gif with the input and output file names, and 99 with the number of frames in your animation. ![]() GIFs are kind of a video file, because they have frames, but there's no real control over how they play or loop. Here's a simpler solution using gifsicle than JohnB's script: gifsicle -U input.gif seq -f 'g' 0 2 99 -O2 -o output.gif This command should work in most Unix shells I've tested it in bash. Animated GIFs are images but you can't really handle them link other types of images, like PNGs or JPEGs or even WebPs.
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