[argyllcms] Re: Gamut comparisons

From: "Jeff Nova" <dmarc-noreply@xxxxxxxxxxxxx> (Redacted sender "jnova" for DMARC)
To: argyllcms@xxxxxxxxxxxxx
Date: Thu, 2 Jul 2020 17:37:24 -0700

Thank you for your reply and wonderful work. I did try to compare an image
gamut with a profile gamut and was not successful. It errored, and with gams
that worked fine separately. I’ll try again tonight.

- J

On Jul 2, 2020, at 5:20 PM, Graeme Gill <graeme@xxxxxxxxxxxxx> wrote:

Jeff Nova (Redacted sender jnova for DMARC) wrote:

Hi,

1) I see that you can compare image gamuts or profile gamuts, but is there
any way to
show an image's gamut against a profile's?  For example, showing an image's
inhabitance
of a workspace, like Adobe RGB's?

yes, you can create any combination you like by creating .gam files using
iccgamut and tiffgamut and viewing them with viewgam.
See <https://www.argyllcms.com/doc/iccgamut.html>
   <https://www.argyllcms.com/doc/tiffgamut.html>
   <https://www.argyllcms.com/doc/viewgam.html>

2) Is there a means by which, when comparing with viewgam, you can see
labels of which
gamut is which?

No. (It sounds a bit tricky to add something like that.)
You can figure it out by varying (say) the color or transparency of
the gamut you want to identify though.

3) Is there any means by which you can automatically identify the larger
gamut and make
that the wireframe?

No. It's a manual process.

(Topologically one gamut is rarely larger than another - typically they
overlap, so some sort of weighted heuristic would be needed to
decide which is subjectively larger.
The gamut viewing tools were conceived as diagnostic
tools, so they lack the sort of polished end user
features that a purpose built gamut viewer application
might provide.)

Cheers,
   Graeme Gill.

--
Jeff NovaChief Executive OfficerColorhythm
jnova@colorhythm.comMain: +1 415-399-9921Direct: +1 415-399-9921 x407Mobile: +1
510-710-9590Fax: +1 415-399-9928

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Follow-Ups:
- [argyllcms] Re: Gamut comparisons
  - From: Jeff Nova

References:
- [argyllcms] Re: Gamut comparisons
  - From: Graeme Gill

[argyllcms] Re: Gamut comparisons

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