Bug 447193 - Wrong tooltip for target PSNR (WebP export)
Summary: Wrong tooltip for target PSNR (WebP export)
Status: RESOLVED NOT A BUG
Alias: None
Product: krita
Classification: Applications
Component: File formats (other bugs)
Version First Reported In: git master (please specify the git hash!)
Platform: Other Linux
: NOR minor
Target Milestone: ---
Assignee: Krita Bugs
URL: https://developers.google.com/speed/w...
Keywords:
Depends on:
Blocks:
 
Reported: 2021-12-18 17:19 UTC by Karl Ove Hufthammer
Modified: 2021-12-18 23:27 UTC (History)
1 user (show)

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Description Karl Ove Hufthammer 2021-12-18 17:19:44 UTC
SUMMARY
In the WebP export, the tooltip for ‘Target PSNR’ says:

    If non-zero, specifies the minimal distortion to try to achieve.
    Takes precedence over Target Size.

I’m not *sure* this is wrong, but I can’t get it to make sense. Why would one set a target *minimal* distortion? Shouldn’t this be either the *maximal* distortion or the average distortion or something like that?


STEPS TO REPRODUCE
1. File → Save As … → WebP image → Advanced.
2. Hover over the ‘Target PSNR’ input field.
Comment 1 amyspark 2021-12-18 23:27:40 UTC
Not a bug. This is the official description of the parameter, as taken from the WebP API. The URL has been attached for future reference.