tag:blogger.com,1999:blog-5246987755651065286.post7595309646075009945..comments2024-02-22T16:15:42.388-08:00Comments on cbloom rants: JPEG2cbloomhttp://www.blogger.com/profile/10714564834899413045noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-5246987755651065286.post-41045013836650840352021-01-11T08:56:23.816-08:002021-01-11T08:56:23.816-08:00I'll see if I can do a test of AVIF...
Anybod...I'll see if I can do a test of AVIF...<br /><br />Anybody know what encoder & settings are best? I see things like "avifenc" on the web but there's absolutely zero guidance on recommended settings.<br /><br />If you post a blog showing comparisons between encoders, you need to post what encoders you use and what settings so that others can repro exactly. If you don't provide repro instructions it's not science.<br />cbloomhttps://www.blogger.com/profile/10714564834899413045noreply@blogger.comtag:blogger.com,1999:blog-5246987755651065286.post-8906147073378845732021-01-11T08:24:49.873-08:002021-01-11T08:24:49.873-08:00AVIF and HEIC are almost the same thing, except th...AVIF and HEIC are almost the same thing, except the codec: AV1 vs H.265. They have very similar quality/filesize ratio, but AV1 has a much better patent licensing story. <br /><br />AVIF has shipped in Chrome (and is a work in progress in Firefox). Real-world deployment is a big advantage here. JPEG XL is much faster to encode and looks promising. senior noisehttps://www.blogger.com/profile/00741594083419251417noreply@blogger.comtag:blogger.com,1999:blog-5246987755651065286.post-30004303957708919252021-01-11T07:24:47.924-08:002021-01-11T07:24:47.924-08:00You say that H265 frames are great, so what is the...You say that H265 frames are great, so what is the difference to AV1 or AVIF?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5246987755651065286.post-3150146190960562922021-01-11T07:15:59.503-08:002021-01-11T07:15:59.503-08:00In terms of quality, JPEG XL is the first standard...In terms of quality, JPEG XL is the first standard that actually seems to provide a significant quality improvement over JPEG.<br /><br />(eg. webp, JPEG-XR, JPEG-2000, all failed; H265 I frames are great but not usable due to patent/license issues).<br /><br />OTOH there are lots of problems with JPEG XL, the first being severe over-complexity. It seems like they took Pik and lots of other work and crammed it all together and made a real mess.<br /><br />There's still a huge empty space for a simple and definite real step up from JPEG.<br />cbloomhttps://www.blogger.com/profile/10714564834899413045noreply@blogger.comtag:blogger.com,1999:blog-5246987755651065286.post-85449557615291114942021-01-10T22:15:58.926-08:002021-01-10T22:15:58.926-08:00What do you think about Jpeg XL? It has all the re...What do you think about Jpeg XL? It has all the requirements...except the complexity.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5246987755651065286.post-83391649607918685112018-03-21T14:29:15.079-07:002018-03-21T14:29:15.079-07:00Absolutely that's the way to go.
I'd add:...Absolutely that's the way to go.<br /><br />I'd add: support progressive rendering or hierarchical encoding, so that the full image doesn't have to be decoded to display just a thumbnail.<br /><br />senior noisehttps://www.blogger.com/profile/00741594083419251417noreply@blogger.com