I had the same issue when using imagecopyresampled() to resize PNG images with transparent background. It introduced subtle noise to the transparent background in the resulting image. It looks like some kind of rounding issue within the resampling algorithm.
As a temporary workaround, reverting libgd back to 2.1.1-4build2 resolves the problem. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1669734 Title: Quality decrease in libgd3 with upgrade to 2.1.1-4ubuntu0.16.04.5 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libgd2/+bug/1669734/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
