[wp-trac] [WordPress Trac] #58435: Media library strips color profiles => significant image color problems

[WordPress Trac]

#58435: Media library strips color profiles => significant image color problems
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 Reporter:  gregbenz     |       Owner:  adamsilverstein
     Type:  enhancement  |      Status:  assigned
 Priority:  normal       |   Milestone:  Awaiting Review
Component:  Media        |     Version:
 Severity:  normal       |  Resolution:
 Keywords:               |     Focuses:
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Comment (by azaozz):

 Replying to [comment:11 gregbenz]:
 > While I am personally OK using ImageMagick instead of the native WP
 image processing

 Just to be clear: WordPress uses the ImageMagick image editor if it is
 installed on the server. If not, it falls back to using GD which is the
 [https://www.php.net/manual/en/book.image.php default image editor] for
 PHP. As far as I know GD doesn't retain any color profiles when resizing
 images, there is an old issue about that:
 https://github.com/libgd/libgd/issues/136.

 > I would hope this is a fairly simple enhancement for CICP/NCLX, as all
 that is needed is to not remove the metadata.

 Yes, seems CICP (and NCLX?) can simply be
 [https://github.com/WordPress/WordPress/blob/6.2.2/wp-includes/class-wp-
 image-editor-imagick.php#L919-L934 added to the list] of retained meta
 tags when resizing JPEGs with ImageMagick (may be wrong but thought NCLX
 is only for AVIF images).

 So seems this ticket is for an enhancement to existing functionality. If
 that's correct thinking perhaps the title should be changed to something
 like: "Keep CICP and NCLX color profiles when resizing JPEGs". Would
 describe this better imho.

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Ticket URL: <https://core.trac.wordpress.org/ticket/58435#comment:17>
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