Does anyone know what the equivalent imagemagick convert command could be for jpeg and webp? If Firefox supports webp in the near future and IE and Safari support can be done through javascript decompression what could the size reduction with a similar process on webp be compared to jpeg be?
Yes, this was wishful thinking on my part. sp332 is right, there was no decision to implement this. They choose to put their efforts towards mozjpeg instead: http://calendar.perfplanet.com/2014/mozjpeg-3-0/
Imagemagick supports webp, and that since quite a while. I currently use the prepackaged Ubuntu version on my desktop, ImageMagick 6.7.7-10 2014-03-06 Q16 which supports it.
