[wp-trac] [WordPress Trac] #40415: Imagick resize filter hook

[WordPress Trac]

#40415: Imagick resize filter hook
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 Reporter:  virgodesign                          |       Owner:  (none)
     Type:  enhancement                          |      Status:  new
 Priority:  normal                               |   Milestone:  Future
                                                 |  Release
Component:  Media                                |     Version:  4.7.3
 Severity:  normal                               |  Resolution:
 Keywords:  has-patch needs-testing reporter-    |     Focuses:
  feedback                                       |
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Comment (by galbaras):

 I totally agree to the need for filters, on top of better default
 settings. Giving developers filters means that WordPress can use a
 reasonable default, and developers can tweak based on the original images,
 and the site's visual needs.

 Another thing that should help is the use of `adaptiveResizeImage()`,
 instead of `resizeImage()`, because it sharpens the subject/foreground of
 the image, while not sharpening the background (as much).

 I've tested `adaptiveResizeImage()` with various sigma values, and 1 got
 me a nice enough result. However, it would be good to test ranges of image
 sizes and ranges of scaling ratios (original size / thumbnail size) to
 find out more.

 Possible option: add image sharpening values to the definition of image
 sizes for better developer control without filters.

 Possible option: add image sharpening values to the customizer for better
 reach by non-developer site builders.

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Ticket URL: <https://core.trac.wordpress.org/ticket/40415#comment:23>
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