Last modified: 2014-07-10 14:12:33 UTC
Hi, https://commons.wikimedia.org/wiki/File:Stara_Ljubljana_-_Ciril_Metodov_trg.tiff completely changed colours after it was moved.
Converting https://upload.wikimedia.org/wikipedia/commons/archive/5/59/20140414211458%21Stara_Ljubljana_-_Ciril_Metodov_trg.tiff on my machine via imagemagick works correctly. Some sort of bug in the converter used on the production servers? The only relevant difference between the current working and the old broken image seems to be the lack of compression. (The old version has transparency and the new does not, but that does not seem to be the issue here.)
In https://commons.wikimedia.org/w/index.php?title=Commons:Village_pump&oldid=121392867#Change_of_colours_after_a_move Ruslik wrote "It is probably related to the fact that this tiff file uses jpeg compression."
(In reply to Tisza Gergő from comment #1) > Converting > https://upload.wikimedia.org/wikipedia/commons/archive/5/59/ > 20140414211458%21Stara_Ljubljana_-_Ciril_Metodov_trg.tiff on my machine via > imagemagick works correctly. Some sort of bug in the converter used on the > production servers? Also fine for me too. All signs point to bug in specific version of image magick used on WMF servers
Another file with that issue: https://commons.wikimedia.org/wiki/File:Herb_%26_Jan_Conn_-_Unclimbed_-1_-_1959_July_-_1.tif
