https://bugzilla.wikimedia.org/show_bug.cgi?id=29999

--- Comment #1 from Brion Vibber <[email protected]> 2011-07-21 20:30:18 UTC 
---
I can reproduce this locally on Ubuntu 11.04 -- the worst artifacting goes away
if I remove the '-sharpen' (!?!)

Striped output with options as per MW default:

convert \
-quality 80 \
-define jpeg:size=200x289 \
Világosi_Gábor.jpg \
-thumbnail '200x289!' \
-depth 8 \
-sharpen 0x0.4 \
-auto-orient \
out-striped.jpg


Non-striped output with the sharpen removed:

convert \
-quality 80 \
-define jpeg:size=200x289 \
Világosi_Gábor.jpg \
-thumbnail '200x289!' \
-depth 8 \
-auto-orient \
out-ok.jpg


$ convert --version
Version: ImageMagick 6.6.2-6 2011-03-16 Q16 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2010 ImageMagick Studio LLC
Features: OpenMP

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