Sharp: Does gif support compression

[Biboswan]

As per documentation 'https://sharp.pixelplumbing.com/api-output#gif' I couldn' find any quality parameter as we see for png.jpg etc.

[lovell]

I'm unsure if a quality setting makes sense for GIF - it's going to be terrible quality regardless - nor am I sure what exactly that would control. Are you able to provide an example of another GIF encoder that provides such a setting?

[Biboswan]

I thought GIF is basically a set of frames/images, so we could optimize each image and then combine them together. But after looking into it, seems like it is harder and maybe not reliable
From https://davidwalsh.name/optimize-gifs I learnt there could be 3 optimization levels.
In https://ezgif.com/ I could reduce a gif from 2mb to 1.7mb at compression level 112 (level till 200)
They use gifsicle gifsicle -O3 --lossy=112 -o lossy-compressed.gif input.gif

[lovell]

Thanks, if you require the features of gifsicle then that's probably the right tool for the job.

(In my experience, the best way to optimise a GIF image is to convert it to pretty much any other format.)