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How correctly to convert CMYK in RGB?

Posted: 2009-04-17T14:20:10-07:00
by loover
(CMYK without profile)I write

Code: Select all

convert.exe 03.tif -colorspace RGB -profile sRGB.icc 03.jpg
But colours of the image in RGB look so as if the profile was not applied.

Re: How correctly to convert CMYK in RGB?

Posted: 2009-04-17T15:30:33-07:00
by fmw42
I am no expert on this, but try -colorspace RGB before the input image. I have seen other posts about this. So you can search the archives also.

Re: How correctly to convert CMYK in RGB?

Posted: 2009-04-18T16:57:35-07:00
by loover
How to define colour model of the image?
I use ImageMagick together with PHP and i need something like that:

Code: Select all

if (colormode == rgb)
{
 ...
}

Re: How correctly to convert CMYK in RGB?

Posted: 2009-04-22T23:58:09-07:00
by anthony
loover wrote:(CMYK without profile)I write

Code: Select all

convert.exe 03.tif -colorspace RGB -profile sRGB.icc 03.jpg
But colours of the image in RGB look so as if the profile was not applied.

You need one profile if the image contains a profile

you need two profiles if the image does not contain the original profile!

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