[argyllcms] Creating Gamut
- From: "Terry Hewitt" <terry@xxxxxxxxxxxxxxxxx>
- To: <argyllcms@xxxxxxxxxxxxx>
- Date: Fri, 18 May 2012 14:41:55 +0100
I'm using iccgamut.exe to produce the Gamut from (for various reasons) all
the .icc files I have.
In Matlab I read the .gam files and convert the Lab values to XYZ and thence
to xy
In a number of the files the Lab combination (0,0,0) appears, which of
course gives a divide by zero when converting to xy.
Some of the icc files that produce this are
AdobeRGB1998
AppleRGB
CNBJPRN2.ICM (It's for a Canon ip4000)
Dell XPS 17_D65-February 2011.icm (for my Laptop, created by X-rite color
munki software)
HP_w2228h.icm (from HP for a 22" monitor)
ProPhoto.icm
.
So
a) Have I mis-understood something?
b) Do I need to use some switches in iccgamut.exe to ensure this
doesn't happen?
c) Have I found a bug?
d) Is there another explanation
Best wishes
Terry
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