Problem with Color Management and Softproofing

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samigina
Posts: 30
Joined: Wed May 28, 2008 12:12 pm

Problem with Color Management and Softproofing

Postby samigina » Mon Mar 09, 2009 8:21 am

Hi, i have this problem, when i want to use the softproofing i get a very ugly colors (see the screenshots). Someone knows why this happen?

-I use inkscape 046 devel, but with the 0,46 stable is the same
-No matter what profile color im using, when i activate the softproof all goes wrong.

Sorry for my english, im a spanish speaker.

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Guest

Re: Problem with Color Management and Softproofing

Postby Guest » Fri Mar 13, 2009 12:41 pm

so... im alone?.... the bug is already in launchpad, but its very inactive...

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microUgly
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Re: Problem with Color Management and Softproofing

Postby microUgly » Tue Mar 17, 2009 4:32 pm

Guest wrote:so... im alone?.... the bug is already in launchpad, but its very inactive...

The people who volunteer their time to develop Inkscape are free to work on which ever bugs or feature they like. I wouldn't expect a solution any time soon.

merindol

Re: Problem with Color Management and Softproofing

Postby merindol » Sat Apr 04, 2009 5:29 am

Hi.

I have a exact same problem. I'm using 0.46-devel too.
I'm doing color proofing under scribus currently.

Naga
Posts: 16
Joined: Sat Aug 02, 2008 4:02 am

Re: Problem with Color Management and Softproofing

Postby Naga » Tue Apr 14, 2009 5:59 am

You should not use SRGB as a screen profile, it is a work profile. Do not modify the original SRGB profile.

You must use a calibration file or nonlinear profile made for your monitor. Hence the name "display profile".
Besides, absolute rendering is not the rendering to use for out of gamut colors. Use perceptual rendering (sometimes relative colorimetric is better, depending on the colors you have in your file). Your printer can not render the out of gamut colors.
And take care that your colors are not out of gamut.
If your printer is a consumer grade printer, use SRGB, else use profiles made by the printer manufacturer.

Naga
Posts: 16
Joined: Sat Aug 02, 2008 4:02 am

Re: Problem with Color Management and Softproofing

Postby Naga » Tue Apr 14, 2009 6:03 am

Oops in the last line I meant SRGB as printer profile.

rndmerle
Posts: 12
Joined: Sun Feb 22, 2009 10:05 pm

Re: Problem with Color Management and Softproofing

Postby rndmerle » Mon Jun 08, 2009 8:02 pm

Hi.

As I said, I was experiencing the same problems about the color rendering. I was using the inkscape-devel Ubuntu package from "ppa.launchpad.net/inkscape-nightly/ubuntu".

Today I tried the SVN version and it's MUCH better : colors render as expected.
Moreover, in this version, the Live Path Effects list is complete (it contains Sketch, Spiro, etc) and there is the eraser.
The "nightly" inkscape-devel from launchpad is way out of date.

Best regards.

EDIT :
I played further with this version. Actually, the color management is better but it's really not like Scribus or Inkscape 0.46 stable.

rndmerle
Posts: 12
Joined: Sun Feb 22, 2009 10:05 pm

Re: Problem with Color Management and Softproofing

Postby rndmerle » Sun Jun 14, 2009 8:49 am

Hi.

At last, there is a working 0.47 version accessible on a launchpad repository :

deb http://ppa.launchpad.net/inkscape.testers/ppa/ubuntu jaunty main
deb-src http://ppa.launchpad.net/inkscape.testers/ppa/ubuntu jaunty main

And to add the key :
$ sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 046710F1B9DC2CA0

Beware : it replaces the regular inkscape.

The color management is very good. Really close of Scribus' rendering.
There are all Path effects. Spiro spline is not crashing, ...

Regards.


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