Here's a prepared Lab image, called LabMeter,  that uses Photoshop's gamut
warning feature to plot a precise outline of a profile's color gamut.
http://www.curvemeister.com/tutorials/LabMeter/

There's also a new color correction challenge:
http://www.curvemeister.com/Challenge/
--

Mike Russell
www.curvemeister.com
www.geigy.2y.net

Useful! Fun! Thanks, Mike.
Tom Nelson
Tom Nelson Photography

In article <g586d.2298$JG2.635@newssvr14.news.prodigy.com>, Mike
Russell <REgeigyMOVE@pacbellTHIS.net> wrote:

> http://www.curvemeister.com/tutorials/LabMeter/

yeh - he is a pretty good geezer isn't he?

Article Sparticle

"Tom Nelson" <ludibund@xintegraonline.com.invalid> wrote in message
news:280920041152413307%ludibund@xintegraonline.com.invalid...
> Useful! Fun! Thanks, Mike.
> Tom Nelson
> Tom Nelson Photography
>
> In article <g586d.2298$JG2.635@newssvr14.news.prodigy.com>, Mike
> Russell <REgeigyMOVE@pacbellTHIS.net> wrote:
> 

Gernot Hoffmann wrote:

[re additional gamut viewing tools]

> Alternatively one can use the free trial version of GretagMacbeth
> ProfileMakerPro / ProfileEdit / GamutView (which is partly buggy).
>
> Or this method which shows 100 slices of the gamut volume CIELab,
> using Photoshop´s gamut warning as in your program:
> http://www.fho-emden.de/~hoffmann/hungams17042004.pdf
>
> Showing 100 slices L=1 to 100 is sometimes helpful for the inter-
> pretation of different rendering intents, especially for Black Point
> Compensation.
>
> Best regards --Gernot Hoffmann

I like the 100 slices image.  Excellent!
I'll add pointers to your pdf to my tutorial.
--

Mike Russell
www.curvemeister.com
www.geigy.2y.net