I have tried different color spaces
with the recommended "sRGB_v4_ICC_preference.icc" the result looks the same for me - i.e. wrong - the soup on the photo has a strong light magenta cast
I have found possible bug in ImageMagick 6.8.6-3 2013-09-09 Q16 PHP version
most of the files (especially PSD files) convert without any problems but there's sometimes problem with JPG files (original CMYK on the left and RGB after conversion on the right): http://tulipano.pl/imagickconv.jpg ...