WordPress / WordPress/performance

Optimize compression quality levels by image size

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#109 8 comments 3 reactions 1 assignee View on GitHub

@getsource is already working on this.

Since Mar 7, 2022.

[Plugin] Modern Image Formats [Type] Enhancement Needs Discussion
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PHP
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Description

Currently WordPress uses the same default quality setting for all image sub sizes. We are currently in the process of enabling quality settings on a per-size bases in https://core.trac.wordpress.org/ticket/54648. We should consider if it makes sense to adjust the defaults that WordPress uses for specific (default) sizes, based on best practices.

For example it may make sense to reduce the default quality setting for thumbnail images. (ref). Curious what other ideas people have for how to apply quality settings at different image sizes.

This is related to the work in https://github.com/WordPress/performance/issues/7 where we are investigating the best compression setting to use as our defaults for WebP (and figuring out a good way to reproduce/automate that testing).

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