[wp-trac] [WordPress Trac] #30402: WordPress does not respect the bit-depth of the original image when resizing

WordPress Trac noreply at wordpress.org
Wed Feb 24 22:50:16 UTC 2016


#30402: WordPress does not respect the bit-depth of the original image when
resizing
--------------------------+------------------------------
 Reporter:  qdinar        |       Owner:
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Media         |     Version:  3.9.2
 Severity:  normal        |  Resolution:
 Keywords:  needs-patch   |     Focuses:
--------------------------+------------------------------

Comment (by mikeschroder):

 In [changeset:"36700"]:
 {{{
 #!CommitTicketReference repository="" revision="36700"
 Media: Optimize Imagick settings for quality and filesize

 - Resamples and sharpens larger images before resize.
 - Uses imagick::FILTER_TRIANGLE for a smoother resize.
 - Introduces `WP_Image_Editor_Imagick::thumbnail_image()` protected method
 to efficiently resize images. Similar to the functionality of Imagick's
 `thumbnailImage()`.
 - Introduces `WP_Image_Editor_Imagick::strip_meta()` protected method and
 `image_strip_meta` filter that, by default, strip image profiles to reduce
 file size, while leaving color profiles intact.

 See: #33642, #30402, #28634.
 Props: joemcgill, dnewton, mikeschroder.
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/30402#comment:15>
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