Last modified: 2011-11-20 00:31:23 UTC
Recently with Bug 6672 EXIF orientiation processing was added to MediaWiki. But this has some harmful effects: there are examples where a JPEG image has already been rotated losslessly without changing the EXIF orientation tag. This leads to the effect, that the image gets rotated again when imported to MediaWiki. Here are two examples: http://de.wikipedia.org/w/index.php?title=Datei:Pfaender.jpg&oldid=33252498 http://de.wikipedia.org/w/index.php?title=Sender_Regensburg-Ziegetsberg&oldid=96177510 One may argue that the EXIF orientation tag should not be processed by wikimedia at all, because the problem has to be eliminated at the source: people should losslessly rotate their pictures with appropriate tools before even uploading them to the internet.
I'm going to dupe this with bug 6672, as that's where most of the pro/con image rotation support argumentation went on. Bugzilla isn't really the best place to have an extended argument as to if a feature should or should not be implemented (Bugzilla should more work towards fixing problems that we know are problems, debates as to if something is a problem should be elsewhere. Perhaps wikitech-l (?) As an aside, if one particular community really hates it, and has community consensus that its not a good thing, I suppose we could set $wgEnableAutoRotation to false for just that wiki. *** This bug has been marked as a duplicate of bug 6672 ***
