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image compression: how does webpagetest check if an image can be compressed??!?
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image compression: how does webpagetest check if an image can be compressed??!?
04-19-2014, 05:30 AM (This post was last modified: 04-25-2014 10:38 AM by dlam.)
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image compression: how does webpagetest check if an image can be compressed??!?
hey! I was wondering how exactly webpagetest figures out if an image could be more compressed or not, so I could test/tweak stuff see if my site is generating the "right" sized images

i gave a shot at looking at the source and found this constant in wpt_test.cc:37 which looks like maybe a clue... ->

wpt_test.cc
37:static const BYTE JPEG_DEFAULT_QUALITY = 30;


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image compression: how does webpagetest check if an image can be compressed??!? - dlam - 04-19-2014 05:30 AM

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