Linked by Thom Holwerda on Thu 30th Sep 2010 23:04 UTC
Google A few months ago, Google open sourced the VP8 video codec as part of the WebM video project, to create a truly Free/free unencumbered video format for the web as an answer to the non-Free/free patent-encumbered H264 format. Today, Google launched a new image format for the web, WebP, which aims to significantly reduce the file size of photos and images on the web.
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Quoting one of the commentators on the site: " The examples page is lame... you can take the same jpeg images and save them with a higher compression level and get effectively the same reduction in file size. For example I took "10.jpg", a 1.1 meg file, adjusted the jpeg compression and got it down to 189k with no visible loss of quality. That's an over 80% reduction in file size and I didn't have to change the file format. The Web doesn't need a new file format, especially one that doesn't really do anything substantively different. WebP is no different than JPEG with a higher compression setting as the default.
So WebP does not even fare well against standard jpeg... "

The problem with that post is that a JPEG set to highest compression does look very crappy. I don't care what this internet anom stated, it's very noticable.

So yes, you can compress JPEG to ~80%, but there's a massive trade off in image quality. Much like MP3 compression really and such is life with any lossy compression formula.

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