[argyllcms] Re: Eye of Gnome Color Management
- From: Leonard Evens <len@xxxxxxxxxxxxxxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Tue, 31 Mar 2009 10:24:41 -0500
On Mon, 2009-03-30 at 23:07 +0100, Alastair M. Robinson wrote:
> Hi :)
>
> Leonard Evens wrote:
>
> > Searching the eog development archives, I found
> > notes to the effect that color management only worked for files with
> > imbedded color profiles. (This is considered a defect.) I don't know
> > if that means it uses only the imbedded profile or if it means that it
> > will only make use of the system display profile if there is a profile
> > of any sort imbedded in the file, e.g, an sRGB profile.
>
> I would think the latter. That agrees with what I see here, on Ubuntu 8.04.
>
Thanks Alastair. Your confirmation of my conjecture, together with
what I've observed, is enough for me. Unfortunately, this makes eog
more or less useless because I don't routinely add profiles to my image
files.
One possibility would be to write a shell script which would add an
imbedded profile for an intermediate image file, call eog on the result,
and finally remove the intermediate file. But this wouldn't work if I
wanted an eog slide show.
I hope the eog developers will deal with this matter sometime soon. It
can't be all that difficult to do.
> > Any comments?
>
> Try installing the following as your monitor profile:
> http://www.blackfiveimaging.co.uk/pathological.icc
>
> (dispwin -I pathological.icc
> You'll obviously have to install your real profile again when you're
> done experimenting.)
>
> This is an RGB profile with an absurd gamma value, so any software which
> honours the system monitor profile will now display very dark images,
> leaving you in no doubt that the profile is being used.
>
> I've just done a 2-minute test here, and I only see the profile being
> used if the original image (a) has an embedded profile, and (b) is a
> JPEG file!
>
> Bizarrely, a greyscale JPEG with no embedded profile is also treated
> correctly, but again, only JPEGs.
>
> All the best,
> --
> Alastair M. Robinson
Other related posts:
