Dear Gimp community,

I would like to inquire about the state of the EXIF support in Gimp, as
per the title.

It seems that Gimp 2.8.6 (Fedora 19) is ignoring the colorspace (Adobe RGB) that is written by my camera as per the EXIF 2.21 specifications (that is, setting the InteropIndex to 'R03' for Adobe RGB, see http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/EXIF.html)

It seems hard to find proper documentation (or even the 2.21 specifications online), but some software (e.g. Geeqie) manage to parse
the useful information very well (see https://gitorious.org/geeqie/geeqie/blobs/master/src/image.c#line288)

Is there a workaround for this? It cripples the Adobe RGB workflow to a
point I prefer sticking to sRGB for now, which is not ideal given that printers and monitors keep improving in gamut.

Here are two test files: https://dl.dropboxusercontent.com/u/176092/_DSF2455.JPG (Adobe RGB) https://dl.dropboxusercontent.com/u/176092/DSCF2456.JPG (sRGB)

$ exiftool _DSF2455.JPG |grep color Color Space : Uncalibrated

$ exiftool DSCF2456.JPG |grep sRGB Color Space : sRGB Interoperability Index : R98 - DCF basic file (sRGB)

So my guess is that your image does not contain that profile?

Owen

Hello Owen, and thank you for your answer.

$ exiftool _DSF2455.JPG |grep color Color Space : Uncalibrated

$ exiftool DSCF2456.JPG |grep sRGB Color Space : sRGB Interoperability Index : R98 - DCF basic file (sRGB)

So my guess is that your image does not contain that profile?

It doesn't. It is my understanding that most camera manufacturers don't
include a profile. They merely tag the colorspace, which makes sense if
it the profile is readily available.

OK,

Have a look at;

http://docs.gimp.org/2.8/en/gimp-pimping.html#gimp-prefs-color-management

Do you have color management activated in the preferences? Do you have a monitor profile?

$ exiftool _DSF2455.JPG |grep Intero Interoperability Index : R03 - DCF option file (Adobe RGB) Interoperability Version : 0100

There should be many .icc files in /use/share/color/icc

I occasionally get an image sent to me with an embedded profile, gimp asks me if sRGB will do to replace it.

Anyway, that's about the end of my knowledge.

Owen

If your gimp is built with exif support, you should not need to do this.

When I open an image with an embedded Adobe RGB, Gimp will recognize it and offer to convert to sRGB.

On Fri, Aug 2, 2013 at 12:01 PM, Maxim Cournoyer wrote:

I have come with the following workaround for pictures tagged as Adobe RGB which comes without an embedded profile: I apply the profile manually using imagemagick.

The command boils down to this: convert _DSF2455.JPG
-profile /usr/share/color/icc/colord/AdobeRGB1998.icc _DSF2455_with_profile.JPG

After the profile is embedded, Firefox will display it nicely (and asks if I want to convert it to sRGB upon opening).

It would still be very nice to see proper EXIF tag support to remove this additional step when working with Adobe RGB files produced by certain cameras (for example the Fujifilm X100).

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