As you know, WebP is an image format that employs both lossy and lossless compression. WebP is an open format currently developed by Google:
https://en.wikipedia.org/wiki/WebPAnd finally implemented support for animation (see article in LibreGraphicsWorld):
http://libregraphicsworld.org/blog/entr ... on-supportYou can download WebP binaries from:
https://code.google.com/p/webp/downloads/listYou know, we always try to reduce the file size with the least possible loss of quality. And reducing the file size is something to be thankful for when it comes to animations for the web (comparing with APNG, GIF, that do not support lossy compression).
For comparison, download WebP tools binaries from the above link and unzip to a folder. In the same folder unzip this file with the samples:
http://www.fileswap.com/dl/WJ3cbUOnGW/w ... s.zip.htmlNow in GNU/Linux (I think you have to do something similar in Windows) open the terminal in the same folder and run the following commands to open the WebP viewer:
Drag the windows on the link below and compare:
viewtopic.php?f=9&t=195The file sizes are:
**dino (2 frames)
apng - 185.9 KiB
webp - 95,8 KiB
**gemstone (15 frames):
apng - 1019,5 KiB
webp - 106,2 KiB
I really do not know why there is so much file size difference in the second example. I've used in all images "50" as the value of compression for WebP.