convert RGB to CMYK colorspace

[btam]

I tried to convert a RGB tiff to CMYK tiff with the following command:

convert RGB.tif -colorspace CMYK CMYK.tif

Somehow, the colors are skewed. The light blue becomes dark blue color.

How to correct this effect? I need to color to be exactly the same after conversion.

Thanks

[fmw42]

you need to use profiles

see http://www.imagemagick.org/Usage/formats/#profiles

[btam]

Do you have any example?
Where can I find the profile datafile.

Thanks a lot

[fmw42]

Do you have any example?
Where can I find the profile datafile.

Thanks a lot

Examples are on the page I referenced. Profiles can be found at http://www.imagemagick.org/download/delegates/
see profiles.zip