Notice that only the pixels that change from one frame to the next are present. Here’s the first three frames of the gif above. If you want to peak at the internals of a gif, you can use gifsicle -e input.gif to explode the frames. We get a little bit of colour banding, but I think that’s acceptable. Step 2 Choose ' to gif ' Choose gif or any other format you need as a result (more than 200 formats supported) Step 3 Download your gif Let the file convert and you can download your gif file right afterwards. This means that the areas without motion will remain the transparent from one frame to the next.įor our longer gifs, this method cut our file size down by about 40%. How to convert PNG to GIF Step 1 Upload png -file (s) Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page. In our case, since the images were synthetic (i.e., not photographic), dithering using the Bayer algorithm worked quite nicely.ĭiff_mode=rectangle restricts area to only the regions where there is motion. Have a look a the different options for dithering as they’ll each have a different effect depending on your content. I found that without this, some static pixels would still change colours ever so slightly between frames.ĭithering with a bayer_scale=5. This will generate a smaller palette because FFMPEG will only look at the pixels that do not change from one frame to the next.

Using stats_mode=diff when generating the palette. I won’t go into each option we’re passing to FFMPEG here, but there are a couple things that differ from the original blog post.

You can find a more detailed explanation of this in FFMPEG’s Filtergraph Docs Explanation of Options

Ffmpeg gif pixelated