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WebP Image Quality Issues

zed140

By zed140
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Posted by MrMason,

We're still working on this, new images from the last few days are being served at wepb at 90% quality to make sure the quality is there. The problem with this is that the increase in bandwidth and cache this causes is around 10x what it costs at 75% quality. This also means that loading times are 10x longer! We've had an idea to try and use AVIF instead of webp, so we're just testing that out, and it's looking pretty promising for static images. We're looking at something like 75% qualit

Update from our lead developer

Recommended by Pickysaurus

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megaman2k Newbie

megaman2k

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On 8/21/2024 at 4:11 AM, Pickysaurus said:

We've reverted to WebP 90% quality for now, but we will continue testing AVIF at some point in the next few weeks (the developers working on this are on annual leave). 

FYI, something's up with the reverted quality for older uploads. An example from my mod:

Hopefully the AVIF update works out. Thanks for the update!

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MrMason
MrMason

Thanks for raising this, what has happened here is that whilst optimising another part of the website we found some configuration that wasn't what we expected - specifically that we had .webp quality

Pickysaurus
Pickysaurus

Webp can be "lossy" or "lossless" depending on if file size or quality is prioritised. It also varies depending on the quality of the original image. Because we're serving images for the web, small fi

Pickysaurus
Pickysaurus

I've moved this thread to the "Site Support" forum so that our team can find it easier. 

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AaronOfMpls Veteran

AaronOfMpls

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Posted (edited)
17 minutes ago, megaman2k said:

FYI, something's up with the reverted quality for older uploads. An example from my mod:

Hopefully the AVIF update works out. Thanks for the update!

I see, the old upload is slightly blurred -- especially with details like the guy's arm hair in the middle.

EDIT: It's also less than half the file size, ~70 KB vs ~176 KB.

Edited by AaronOfMpls
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