NHW Project - new -l19 "extreme" compression quality setting
Raphael Canut <[email protected]> Sun, 17 Feb 2019 18:03:16 +0100
| Newsgroups | gmane.comp.multimedia.ogg.theora.general |
|---|---|
| Message-ID | <CAKE58qEjJW1a+UhmZpvLereKPByCSP5QbiSdO=oUEwyLo8jNMQ@mail.gmail.com> |
--===============8227688183014585271== Content-Type: multipart/alternative; boundary="000000000000ae331f058219fc04" --000000000000ae331f058219fc04 Content-Type: text/plain; charset="UTF-8" Hello, For those interested, I have added a new -l19 "extreme" compression quality setting to the NHW Project.This -l19 quality setting is really competitive with x265 (HEVC) on rather good quality images. An important remark: we can really save 2.5KB in average per .nhw compressed file as the entropy coding schemes are not optimal, especially at extreme compression.I have the fast ideas to improve it.Will have to do it. More at: http://nhwcodec.blogspot.com/ I will have to study a little deeper the psychovisual model I use for extreme compression, because on 5% of the images, certain kinds of images, it is better to switch it off... Again, it would be great if you could consider the NHW Project as furthermore it is royalty-free and ultra-fast, I know it is impossible to compete with VP9,HEVC, AOM AV1, VVC, but maybe there would a niche these codecs don't cover and where the NHW Project could shine, because I feel it still lacks of consideration by the industry (but of course this is only my opinion)... Many thanks! Cheers, Raphael --000000000000ae331f058219fc04 Content-Type: text/html; charset="UTF-8" <div dir="ltr">Hello,<div id="gmail-:1rb" class="gmail-a3s gmail-aXjCH"><div dir="ltr"><div dir="ltr"><div><br></div><div>For those interested, I have added a new -l19 "extreme" compression quality setting to the NHW Project.This -l19 quality setting is really competitive with x265 (HEVC) on rather good quality images.</div><div><br></div><div>An important remark: we can really save 2.5KB in average per .nhw compressed file as the entropy coding schemes are not optimal, especially at extreme compression.I have the fast ideas to improve it.Will have to do it.<br></div><div><br></div><div>More at: <a href="http://nhwcodec.blogspot.com/" target="_blank">http://nhwcodec.blogspot.com/</a><br></div><div><br></div><div>I will have to study a little deeper the psychovisual model I use for extreme compression, because on 5% of the images, certain kinds of images, it is better to switch it off...</div><div><br></div><div>Again, it would be great if you could consider the NHW Project as furthermore it is royalty-free and ultra-fast, I know it is impossible to compete with VP9,HEVC, AOM AV1, VVC, but maybe there would a niche these codecs don't cover and where the NHW Project could shine, because I feel it still lacks of consideration by the industry (but of course this is only my opinion)...<br></div><div><br></div><div>Many thanks!</div><div>Cheers,</div><div>Raphael<br></div></div></div></div> </div> --000000000000ae331f058219fc04-- --===============8227688183014585271== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KdGhlb3JhIG1h aWxpbmcgbGlzdAp0aGVvcmFAeGlwaC5vcmcKaHR0cDovL2xpc3RzLnhpcGgub3JnL21haWxtYW4v bGlzdGluZm8vdGhlb3JhCg== --===============8227688183014585271==--