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ResponsiveImagesCG / wp-tevko-responsive-images

Fully responsive image plugin for wordpress
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Advanced image compression: remove posterization #270

Open joemcgill opened 8 years ago

joemcgill commented 8 years ago

This removes the posterization filter from the advanced image compression settings to substantially reduce the CPU load which could cause image resizing to fail (see #150).

After digging into the research @nwtn did to come up with these settings, it turns out that posterization only improves file sizes for PNGs and can actually lead to slightly larger file sizes for JPG images.

joemcgill commented 8 years ago

Raw data for the original experiments can be found here: https://github.com/nwtn/image-resize-tests/tree/optimization

jaspermdegroot commented 8 years ago

:+1: (no idea why that one test failed, but it passed in the second run so I assume it's not legit)