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by pengvado
2013-04-03T16:10:10-07:00
Forum: Bugs
Topic: jpeg decoder: quality regression in chroma upsampling
Replies: 2
Views: 4226

jpeg decoder: quality regression in chroma upsampling

Recent versions of imagemagick produce lower-quality decoding of subsampled jpegs than older versions did. I noticed the problem in 6.8.4-6 2013-04-03 Q16, and tracked the regression to svn-r7275. That commit message ("Change IsMagickTrue() to more sensible name IsStringTrue()") implies it was only ...