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The Basics
Id: 45781
Status: open
Priority: 0/
Queue: GD
People
Owner: Nobody in particular
Requestors: LGODDARD [...] cpan.org
Cc:
AdminCc:
Bug Information
Severity: Important
Broken in: 2.41
Fixed in: (no value)

History Show all quoted text
  Wed May 06 10:22:29 2009 LGODDARD [...] cpan.org - Ticket created
Subject: Copy / merge transparent looses palette?
Copying a palette-based image (with 3-4 colours) that has a transparent backgroud, using the merge* methods, seems to loose palette, and produces an image of a solid colour. Let me know if you would like a demo.
  Sat Apr 22 02:04:54 2017 RURBAN [...] cpan.org - Correspondence added
On Wed May 06 10:22:29 2009, LGODDARD wrote: Show quoted text
> Copying a palette-based image (with 3-4 colours) that has a transparent > backgroud, using the merge* methods, seems to loose palette, and > produces an image of a solid colour. > Let me know if you would like a demo.
Yes, please. -- Reini Urban
  Sat Apr 22 02:04:54 2017 The RT System itself - Status changed from 'new' to 'open'
  Sun Apr 23 09:06:17 2017 RURBAN [...] cpan.org - Correspondence added
I found a fixed libgd bug at https://github.com/libgd/libgd/blob/master/tests/gdimagecopyresampled/bug00201.c with gdImageAlphaBlending and gdImageCopy vs the better gdImageCopyResampled. so upgrading libgd might help. -- Reini Urban
  Tue Nov 14 11:06:24 2017 RURBAN [...] cpan.org - Correspondence added
Looks like a libgd problem. No feedback -- Reini Urban
  Tue Nov 14 11:06:25 2017 RURBAN [...] cpan.org - Status changed from 'open' to 'stalled'
  Wed Nov 15 08:06:35 2017 LGODDARD [...] cpan.org - Correspondence added
On 2017-11-14 11:06:24, RURBAN wrote: Show quoted text
> Looks like a libgd problem. No feedback
Thanks! I've not used the library for a while....
  Wed Nov 15 08:06:37 2017 The RT System itself - Status changed from 'stalled' to 'open'
  Wed Nov 15 15:04:37 2017 LDS [...] cpan.org - Correspondence added
The root of this problem would be in libgd, not at the Perl layer. Have you tried updating your libgd version?