On Tuesday 15 November 2005 05:21 pm, Gilles Maltais wrote:

Is there a function in GIMP that shows which colors are printable and which are not ?

If there is no such feature, where could I find info on this topic ?

Thanks !

Gilles Maltais

While the gamut of CMYK is smaller than the gamut of RGB I don't know how you can define it except by example. There are color charts, or you can generate the same, that will show a range of colors available from your inkjet printer. I have such a printout. Of course every possible combination of C M Y and K would create a book larger than the Manhattan White Pages.

Not all the world of color printing depends on the four color process. The book of Pantone colors shows swatches of specific ink colors that are available as spot colors.

HTH

John Culleton

On 11/16/05, John R. Culleton wrote:

While the gamut of CMYK is smaller than the gamut of RGB I don't know how you can define it except by example.

In prepress world this is called "Mark colors out of gamut" and is implemented e.g. in Scribus

Alexandre

Hi,

Gilles Maltais writes:

Is there a function in GIMP that shows which colors are printable and which are not ?

No, not yet. But it might be added with the color management features in GIMP 2.4 or at a later point.

Sven

We can understand the question if we imagine that some user still use Photoshop. Alexandre is right to say that in in Free DTP Software process, Gimp don't need mark out of gamut colors. It is the same for Color management. But in Adobe's process, all these steps are taken in charge by Photoshop. So if you use GIMP+InDesign, you miss this functionnality somewhere.

But i've atthis time no solution for that.

Cedric pygmee

On 11/17/05, cedric GEMY wrote:

We can understand the question if we imagine that some user still use Photoshop. Alexandre is right to say that in in Free DTP Software process, Gimp don't need mark out of gamut colors.

If I told that, I probably wouldn't be right. But I am right anyway, because I never said that :))

And, quite in contrary to your words, it would be helpful to see colors out of gamut by softproofing.

Alexandre

Hi,

Alexandre Prokoudine writes:

And, quite in contrary to your words, it would be helpful to see colors out of gamut by softproofing.

It would be trivial to change the color management display filter to provide this functionality. I hope that we can have this in GIMP 2.4.

Sven