Image conversion in MediaWiki is handled by ImageMagick or GD. Image are converted for several reasons, the commons is when thumbnails are created.

Known problems edit

LAB color is not supported by ImageMagick at this moment.

How to edit

Convert files with different colorspaces / colormodels: Check the colorspace of the original file and load this and a RGB colormodel using the -profile option. (this requires .icc or .icm files)

Convert PSD to JPG: When converting a PSD to a JPG format always make use of the -flatten command in ImageMagick, this makes sure the layers are removed.

Convert EPS to JPG: When converting a EPS, you need to have w:Ghostscript installed.