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Thread: New version of guetzli

  1. #1
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    New version of guetzli

    We have a new version of guetzli with two improvements: new more precise butteraugli and smarter handling of low frequency features. New butteraugli gives possibly a 2 % size improvement and an unspecified improvement in quality, but makes guetzli twice as slow and to use even more memory. The improvement in low frequency modeling possibly fixes guetzli to actually work well at lower qualities, at least down to 84. More experiences are needed of both before large-scale deployment...

    https://github.com/google/guetzli

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    Are there any updated binaries? Releases page is still at march 21th.

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    Quote Originally Posted by nikkho View Post
    Are there any updated binaries? Releases page is still at march 21th.
    Could you please report this at https://github.com/google/guetzli/issues ?

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    Jyrki Alakuijala (5th September 2017)

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    Example improvement here at quality 84 -- I do recommend using higher quality but this improvement is most visible at low quality.

    Old guetzli gives 181811 bytes:

    Click image for larger version. 

Name:	stp2.guetzli1.q84.jpg 
Views:	94 
Size:	177.5 KB 
ID:	5275

    New guetzli gives 175052 bytes:

    Click image for larger version. 

Name:	stp2.guetzli2.q84.jpg 
Views:	97 
Size:	170.9 KB 
ID:	5276

    These results are indicative, but as can be seen there is quite a big improvement on having less visible block boundaries in the sky at low quality settings.

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    Hello,

    win32 & win64 binaries, barely tested, be warned.
    guetzli_20170906_win32_win64.7z

    AiZ

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    Jyrki Alakuijala (6th September 2017),media (24th October 2017)

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