Home > Krita, Open Source > One day One Feature : Color profile

One day One Feature : Color profile

Last week, I have written about colorspace independence, and today I will introduce the sister feature : color profile. ICC Profiles are a standard that allow colors to be rendered the same way on your screen, than on your neighbourgh screen, on your printer and from your scanner. You can find more information on the site of the International Color Consortium. Krita uses lcms for managing the profiles. If you don’t have a profile for your devices, lprof can help you do build it.

Once you have your profiles, you will be interested in using the setting dialog of krita :

Free Image Hosting at www.ImageShack.us

And if you like krita, use it, or just want to make me happy, you can vote for krita here : 2005 LinuxQuestions.org Members Choice Awards.

  1. superstoned
    31 January, 2006 at 07:26

    love your new site look & daily features 😀

  2. Olaf Jan Schmidt
    31 January, 2006 at 10:51

    Thanks for the detailed introductions into Krita’s features!I have again a question.I own a slide scanner, and in the proprietary scanning software (vuescan) I can set a scanner profile and do some manual color correction. Normally, the images are then converted to the standardised sRGB profile for editing. Of course there is some small information loss during this conversaion – the best quality would be reached by embedding the color correction as a profile in the image itself without changing the pixel data.If I can convince the vuescan author to support this (maybe even saving the image as OpenEXP), would Krita then keep the profile while editing the image, or would it convert the image to some normalised profile during import?And what happens if I mix two scanned images with different profiles, or if I copy and paste into a newly created image?Olaf

  3. Cyrille Berger
    31 January, 2006 at 12:10

    to superstoned: thank you 🙂to olaf jan schmidt: krita keeps profile information for each layer and image. So if you have two images with say profile “proprietary scanner profile 1”, and “proprietary scanner profile 2”, you will edit both image with their profile, and if you put the two of them in two layers of each image, you will edit each layer with it’s own profile. That’s for what krita is capable.The problem is that krita require that profile have information for converting from the profile and for converting to the profile, and most profile for scanner have only information for converting from the profile and are therefor unusable in krita. So if krita try to open an image with such a profile, krita will convert the image to sRGB. As far as I have been able to test, Photoshop has the same behaviour.But if the profile for your scanner have both conversion, then you will be able to keep it in krita.

  4. Olaf Jan Schmidt
    31 January, 2006 at 13:33

    Thanks.I will talk ask the vuescan author which kind of export formats can be supported.

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