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Color management

  • 3 antwurd
  • 1 hat dit probleem
  • 1 werjefte
  • Lêste antwurd fan TyDraniu

nikata.ivanov
nikata.ivanov
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Hi! I have calibrated wide gamut monitor and activated color management in Firefox. Everything was ok until yesterday. Now firefox shows only some pictures and alements correctly and the most are oversaturated and contrasted. I followed this article: https://support.mozilla.org/en-US/questions/1171999

gfx.color_management.mode - 1 = on for ALL images gfx.color_management.enablev4 - true

I did this setting a long time ago and everything was ok until yesterday. I reinstall Firefox, new clean install graphic driver, recalibrate monitor several times, but the problem is still there.

Hi! I have calibrated wide gamut monitor and activated color management in Firefox. Everything was ok until yesterday. Now firefox shows only some pictures and alements correctly and the most are oversaturated and contrasted. I followed this article: https://support.mozilla.org/en-US/questions/1171999 gfx.color_management.mode - 1 = on for ALL images gfx.color_management.enablev4 - true I did this setting a long time ago and everything was ok until yesterday. I reinstall Firefox, new clean install graphic driver, recalibrate monitor several times, but the problem is still there.
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Ankit Kumar
Ankit Kumar
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Hello...

In your Corel product, are you assigning a color space?

I think by default Firefox will use the sRGB color space for images, but if a color space is designated, it may behave somewhat differently.

You could try adjusting Firefox's color management settings. This is an old write-up, but I haven't heard about any changes since then:

By default, Firefox will try to color manage tagged images (JPEGs and PNGs). You can review and experiment with the following preferences to see whether one of them is causing the problem:

(1) In a new tab, type or paste about:config in the address bar and press Enter/Return. Click the button promising to be careful.

(2) In the search box above the list, type or paste gfx.c and pause while the list is filtered

gfx.color_management.mode - governs application of color management to images 

   0 = off
   1 = on for ALL images
   2 = on for TAGGED images (default)

I can't recall whether you need to quit/restart Firefox before this change, or changes to the below preferences, takes effect.

gfx.color_management.display_profile - if you have created a custom monitor profile and Firefox is not using it, you can enter the path to it here.

gfx.color_management.enablev4 - double-click to toggle to true if your custom monitor profile is an ICC v4 profile

gfx.color_management.rendering_intent - whether Firefox honors or overrides the intent flag in the ICC profile, by default, overrides to Perceptual

For details, see: https://developer.mozilla.org/Firefox/Releases/3.5/ICC_color_correction_in_Firefox

Can you find a combination of settings that gives you the colors you expect? Depending on your results, and whether you are publishing these images on the web, you might need to revise how Corel deals with color spaces.

thank you...

nikata.ivanov
nikata.ivanov Fraacheigener
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Is this autoresponder? I wrote I already did it. It doesn't help. thank you...

TyDraniu
TyDraniu
  • Top 10 Contributor
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Hi, there's plenty of bugs in the Color Managment module in Firefox, for instance https://bugzilla.mozilla.org/show_bug.cgi?id=1204423

Also, Firefox does not implement the spec that restricts CSS colors to sRGB. Instead, it just throws the raw RGB coordinates on the screen, so e.g. rgb(100% 0% 0%) is the brightest red your screen can display. While this may seem like a superior solution, it’s incredibly inconsistent: specifying a color is approximate at best, since every screen displays it differently.

PS. Sorry for the autoresponder :).