Re: Color management

Frédéric <[email protected]> Sat, 30 Dec 2006 08:54:11 +0100
Newsgroups gmane.comp.gnome.apps.gqview.user
Organization Home
Message-ID <[email protected]>
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On Friday 29 December 2006 22:45, John Ellis wrote:

> The inputs 1 to 4 are custom profiles you can use for the image, they
> are empty and not selectable until you assign a color profile to an
> input in preferences. Under the advanced tab, scroll down to "Color
> profiles", the file entry must point to a valid .icc Color Profile to be
> enabled in the menu.
>
> Images from the internet for display on a web page, and most consumer
> level digital cameras will use the sRGB color profile - no .icc file is
> needed.
>
> The custom inputs are for when you have a color profile for the source
> of the image (scanner, camera, etc.). If the device does not use the
> default sRGB profile, then an .icc color profile is usually supplied
> with the device drivers that came with the device.
>
> "Use profile from image" should be enabled so that if an image contains
> an embedded profile it will be used instead of the one you chose as the
> default input.

Ok, I think I have understood.

> Changing any option in the color profile menu will automatically reload
> the image. Note that the color adjustment function takes time and is
> calculated after the image is completely loaded, so for larger images
> there will be a noticeable delay between when the image is first loaded
> and the color adjusted image is drawn.
>
> If the image is in sRGB colorspace (or you select sRGB as the input) and
> your monitor is also set to sRGB there will be no change as they are the
> same. Additionally, if either the input or screen .icc file(s) you
> selected in the preferences window is corrupt or missing, color
> profiling can not function and will not be applied to the image.

Is there any log somewhere to see if this is a profile problem? Because I=20
can't see anything... I use a profile generated by Argyllcms.

=2D-=20
   Fr=E9d=E9ric

   http://www.gbiloba.org

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