[wp-trac] [WordPress Trac] #24380: Missing Compression Parameter in WP_Image_Editor_GD

[WordPress Trac]

#24380: Missing Compression Parameter in WP_Image_Editor_GD
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 Reporter:  MuViMoTV     |       Owner:  wonderboymusic
     Type:  enhancement  |      Status:  reopened
 Priority:  normal       |   Milestone:  4.0
Component:  Media        |     Version:  3.5.1
 Severity:  normal       |  Resolution:
 Keywords:  has-patch    |     Focuses:
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Changes (by mikemanger):

 * status:  closed => reopened
 * resolution:  fixed =>


Comment:

 Anyone care to explain why we are converting from high to low? The
 original statement that it goes "0->9 from good to bad" is wrong. PNG
 compression is lossless so there is no such thing as "bad" compression
 with regards to image quality, just a trade off between file size and
 compression speed. Best explanation I can find is in the
 [http://www.php.net/manual/en/function.imagepng.php#106093 discussion on
 the PHP documentation page].

 I can run some tests to demonstrate this.

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Ticket URL: <https://core.trac.wordpress.org/ticket/24380#comment:27>
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