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Bug #77127 A bug on Imagick::setImageCompressionQuality()
Submitted: 2018-11-08 21:42 UTC Modified: 2018-11-08 22:34 UTC
From: vhpvhp at msn dot com Assigned:
Status: Open Package: imagick (PECL)
PHP Version: 7.2.12 OS: Windows
Private report: No CVE-ID: None
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 [2018-11-08 21:42 UTC] vhpvhp at msn dot com

For a PNG image, Imagick::setImageCompressionQuality() is not work at all, length of the generated files are totally same, only a few bytes are different.

But if use Imagick::setOption('png:compression-level', 9), the value range is 0-9, it will works.

So I think it's a bug on Imagick::setImageCompressionQuality().


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 [2018-11-08 22:34 UTC]
-Package: *Graphics related +Package: imagick
 [2018-11-09 08:04 UTC] a at b dot c dot de
What quality settings are you trying? Do you have a sample image to demonstrate with? (Note how the quality setting affects PNG compression:
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