Could you tell me how to use ffmpeg? I've never tried it before. Solveigmm doesn't have any options (I don't blame them, it's primary goal isn't to make gifs) Thanks for the info. You want the option to control display times per frame, alpha channel (transparency). You want the options to make it higher or lower quality. You want the have the option to resize with different algorithms, to be able to use various dithering methods, to be able to use lossy settings to reduce the filesize. You want it to look good at small filesizes. The main problem with gif creation are the optimization. Solveigmm doesn't have any options (I don't blame them, it's primary goal isn't to make gifs)
If you have content with many different colors and "stretches" the palette - it's going to look like garbage no matter what method you use. They only have 256 colors - that's why dithering is used - a pattern dither typically causes that "speckling" common to gifs. Gif's are prone to banding along gradients. The reason is it scans the file and selects the appropriate color palette, so it's a 2 pass method Ffmpeg with the -vf palettegen method with no dithering added makes gifs about the same or better than solveigmm.
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