Color-managed browser

[pjvolders]

Hi,

i just calibrated my monitor using Argyll and I'm enjoying my fresh ICC profile. But I am still looking programs that can use these profiles, so far i'm only using GIMP. What I need the most is a webbrowser (or a firefox plugin) so i can see correct colors on my favorite websites. Anyone an idea? Or a list of linux software that support ICC profiles?

Cheers,
PJ

[Gen2ly]

Well, I could tell you that xcalib can uses a monitor Icc to calibrate the screen. As for as that goes I think Icc profiles are mainly used in the Apple community.

[jcornuz]

Hi there,

Welcome to the wonderful world of color management

xcalib and an ICC profile will allow you to tweak your video card's output to best match a "known neutral" behavior (gamma of 2.2, color temperature of 64k).

From there, programs like The Gimp, Cinepaint, etc use this same profile to match as closely as possible how they display colors on your screen with the "original file colors".

Obviously, it would be cool to have a color aware browser (so you are sure your pictures are seen with the right colors). Apart from Safari (which already supports that at least in Mac - don't know about the window version), it is coming in Firefox 3.0 - and on Ubuntu

If you want to test if how your browser behaves, see here

If you want to know more about color management and Linux, have a look at my blog.

Take care.

Joel

[pjvolders]

Hi

i do know your blog, i used your how-to to use the spyder and argyll
So i downloaded fire fox 3 for gutsy https://wiki.ubuntu.com/UbuntuWeekly...e8d6ebba61f955
but now, how do i use my icc profile with it? The test-link you provided with the strange image looks the same in both browsers. Is icc support only available in the final release?

Cheers,
PJ

[jcornuz]

Hi there,

enter about:config as an URL and then set gfx.color_management.enabled to true.

Firefox is now icc v4 compatible (according to the testpage).



Joel

PS: now let's add an ICC profile embedded in every image on the web to make sure we take advantage of this new feature...

[pjvolders]

It works!

Thanks a lot, i also set my monitor profile in gfx.color_management.display_profile and the colors are perfect now!

Cheers,
PJ

[FFred]

So who says colour is difficult in Linux ?

[JPorter]

Be careful not to double-profile your monitor.

If the ICC/ICM is loaded using xcalib, you do NOT need to load it in Firefox. If you do both, you will double-calibrate and screw up the display colors in Firefox, correcting well beyond the target.

[pjvolders]

Originally Posted by JPorter Be careful not to double-profile your monitor. If the ICC/ICM is loaded using xcalib, you do NOT need to load it in Firefox. If you do both, you will double-calibrate and screw up the display colors in Firefox, correcting well beyond the target.

Are you sure?
I thought xcalib only uses the vcg tag and the "color management" part is done by the program...

Cheers,
PJ

[JPorter]

Originally Posted by pjvolders Are you sure? I thought xcalib only uses the vcg tag and the "color management" part is done by the program... Cheers, PJ

When I load my custom ICM profile with xcalib, the colors on my monitor immediately change. That indicates that the whole OS environment is then color-corrected, and further profiling in an individual application will double-profile the display output of that application.

Color-managed apps like FF3 can output proper color balance if you load the ICM profile into them directly... and that's WITHOUT xcalib being loaded for the OS at large. You don't even need the xcalib package installed to do that. Xcalib is not needed for FF3.0 to do its thing, so using them both to "calibrate" will result in incorrect colors.