Re: [Gimp-user] ICC Profiles: UFRaw + GIMP => 2x correction?

[Gary Aitken <gimp dreamchaser org>]

On 2/1/2012 12:08 AM, Kevin Brubeck Unhammer wrote:

> When I apply an Output Profile in UFRaw and send to GIMP, GIMP asks me
> whether to keep the embedded profile or convert to sRGB, so I do know
> that it's noticing a profile there. You can set GIMP to ask on the
> bottom drop-down of that menu.

I don't see any dialog at all.  The image just appears in the gimp image 
window.

> Also, just to check "if it's plugged in", if you run ImageMagick's
> "identify -verbose myfile.tif", does it have a section like
>
>       Profile-icc: 3004 bytes
>         Description: Pink
>         Manufacturer: IEC http://www.iec.ch
>         Model: IEC 61966-2.1 Default RGB colour space - sRGB
>         Copyright: Copyright (c) 1998 Hewlett-Packard Company Modified using Adobe Gamma
>
> ?
>
> Or, if you click Image→Image Properties (alternatively:
> Image→Mode→Set/Convert Colour Profile), does it say that the current one
> is sRGB built-in, or that it is YourProfileName?

It says the profile is "sRGB built-in, Default RGB working space"
but it displays with the profile applied in ufraw.

Edit/Preferences/Color Management shows no profile for RGB.

> > Now set the RGB Profile to the one you used in ufraw when generating
> > the .tif image.
> >    You will see the image transformed again.
> >    In effect, the profile is being applied twice.
>
> I don't see this. What I do see is that no matter what crazy embedded
> Output Profile I use in UFRaw (and I select "keep embedded" in GIMP),
> changing the RGB Profile in that part of GIMP doesn't change what the
> image looks like, and they all look the same no matter what profile they
> have (or even if they don't have a profile).
>
> However, if I open an image without an embedded profile, clicking
> Image→Image Properties tells me that the profile is "sRGB built-in", and
> if I have RGB Profile set to something weird in Preferences then, the
> image gets weird colours.
>
> Tested using UFRaw version 0.18, GIMP version 2.7.4, on Arch Linux.
>
> > BTW, I'm using gimp 2.7.5 (2.8 preview); I don't know if this is
> > specific to 2.7.5 or not.  It may also be that these are temporary
> > issues with the transition to full color management and 16bit colors.
> > But if they are issues not already on the gimp development plate, they
> > should probably be raised so they are at least well-known.
>
> Ah. Perhaps the difference is to do with Windows?

dangit.
Could be windoze related;
or something that creeped in between 2.7.4 and 2.7.5.
Anyone running 2.7.5 on any os who can confirm 2.7.5 behavior one way or 
the other?

Ugh.  Global .gimprc says
  #(color-profile-policy ask)
my .gimprc says
 (color-profile-policy convert)
which I don't believe I ever set, but I could be lying.

I now see, at bottom of preferences/color management, option to ask, 
keep, or discard (convert)

However...
I changed it to "keep",
exited,
my .gimprc now says keep
The image comes across with the profile, but image/properties still says 
sRGB default.
Change it to ask and the behavior is the same -- I still don't get a 
dialog, and it still says the profile is the default despite the 
original one being applied.

So... can anyone confirm 2.7.5 behavior on any os?

Gary