[argyllcms] Re: Warning: gamut mapping is non monotonic - may be not very smooth
- From: Graeme Gill <graeme@xxxxxxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Thu, 31 May 2012 21:25:46 +1000
Michael Schulz wrote:
> Thank your for the reply. I've tried different colorspaces i.e.
> AdobeRGB.icc, eci.RGB_v2.icc, Lstar.icc, sRGB.icc (for example: collink
> -qu -ke -cmt -dpp -G image_ProPhotoRGB.gam sRGB.icc ISOcoated_v2.icc
> DLgam_sRGB-ISOcoated_v2.icc) - is that the way you mean? Depending on the
The source profile provides a white point and default source gamut, while
the (optional) argument to -G provides a specific sub-gamut within that source
space.
I'm not sure what it means to mix a gamut taken from the image in one
color space with a different source colorspace.
If you have an image in colorspace X, where X is very wide gamut,
the the typical workflow is to create an image gamut from the image,
and then create a device link from X to the destination colorspace
with the image gamut as the -G argument. The device link created
then converts from colorspace X to the destination colorspace,
and attempts to compress in a perceptual manner colors within the image
gamut, and clip colors outside that.
Graeme Gill.
Other related posts:
