[wp-trac] [WordPress Trac] #54356: Determine and apply best default quality settings for WebP images

[WordPress Trac]

#54356: Determine and apply best default quality settings for WebP images
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 Reporter:  adamsilverstein  |       Owner:  (none)
     Type:  enhancement      |      Status:  new
 Priority:  normal           |   Milestone:  Future Release
Component:  Media            |     Version:  5.8
 Severity:  normal           |  Resolution:
 Keywords:                   |     Focuses:
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Comment (by adamsilverstein):

 Some resources:
 - dssim compares visual quality: https://github.com/kornelski/dssim (or
 `brew install dssim` on a mac)
 - https://www.industrialempathy.com/posts/avif-webp-quality-settings/
 includes some interesting details and data tables with compression levels
 for jpeg, avig and WebP formats - including one table showing jpeg quality
 80 being ~ the same as webp quality 82. my read of this article is that
 WebP settings should be pretty close to jpeg, so we may be fine with the
 same or close to the same value for the default WebP quality.

 one other interesting point in Malte's article was that the compression
 level (for a given format) chosen might depend on the image size. I feel
 like this is something we might want to look into on a separate ticket.

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Ticket URL: <https://core.trac.wordpress.org/ticket/54356#comment:3>
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