Strange blue tint in digikam-processed photo depends on what program you use to look at it ?

[krienke]

Hello,

I have a strange problem with a photo thats already some years old and I
thought everything was fine, up to now. It was taken with a Nikon D80 as jpg
(not RAW) and later I processed it using digikam.
I never activated littel CMS in digikam and never convert my photos from sRGB
to anything else. I am not doinf any color correction in any of my systems
components at least not to my knowledge. So sRGB should be used everywhere.

The photo:

http://userpages.uni-koblenz.de/~krienke/tmp/blueish.jpg

looks normal when I look at it in digikam, and in eg gwenview. But today I
uploaded this photo to a webgallery service (zenfolio.com) and there in the
gallery it had a strong blue tint.

Next I looked at it using bibble5 on my desktop and this also shows a blue
tint for this photo. Last but not least I activated little CMS in digikam and
set sRGB as my working profile (which is exactly the same the photo is in) and
again looked at it in digikam. And now it also has this blue tint. If I
deactivate little CMS the photo is shown normal again.

Now what do not understand why a photo that is in sRGB can look different in
digikam with CMS deactivated and activated but set to sRGB and why this photo
can have a blue tint in the gallery or bibble but not when looking at it using
gwenview when all agree that this photo is using sRGB.

I am really lost in (color)space. Any idea?

Thanks in advance
Rainer
--
Rainer Krienke, Uni Koblenz, Rechenzentrum, A22, Universitaetsstrasse  1
56070 Koblenz, http://www.uni-koblenz.de/~krienke, Tel: [phone]
PGP: http://www.uni-koblenz.de/~krienke/mypgp.html,Fax: [phone]

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[Gilles Caulier-4]

Sound like a problem fixed by Marcel in current implementation from
svn (next 1.30).

Which digiKam version you use exactly ?

Gilles Caulier

2010/5/31 Rainer Krienke <[hidden email]>:

> Hello,
>
> I have a strange problem with a photo thats already some years old and I
> thought everything was fine, up to now. It was taken with a Nikon D80 as jpg
> (not RAW) and later I processed it using digikam.
> I never activated littel CMS in digikam and never convert my photos from sRGB
> to anything else. I am not doinf any color correction in any of my systems
> components at least not to my knowledge. So sRGB should be used everywhere.
>
> The photo:
>
> http://userpages.uni-koblenz.de/~krienke/tmp/blueish.jpg
>
> looks normal when I look at it in digikam, and in eg gwenview. But today I
> uploaded this photo to a webgallery service (zenfolio.com) and there in the
> gallery it had a strong blue tint.
>
> Next I looked at it using bibble5 on my desktop and this also shows a blue
> tint for this photo. Last but not least I activated little CMS in digikam and
> set sRGB as my working profile (which is exactly the same the photo is in) and
> again looked at it in digikam. And now it also has this blue tint. If I
> deactivate little CMS the photo is shown normal again.
>
> Now what do not understand why a photo that is in sRGB can look different in
> digikam with CMS deactivated and activated but set to sRGB and why this photo
> can have a blue tint in the gallery or bibble but not when looking at it using
> gwenview when all agree that this photo is using sRGB.
>
> I am really lost in (color)space. Any idea?
>
> Thanks in advance
> Rainer
> --
> Rainer Krienke, Uni Koblenz, Rechenzentrum, A22, Universitaetsstrasse  1
> 56070 Koblenz, http://www.uni-koblenz.de/~krienke, Tel: [phone]
> PGP: http://www.uni-koblenz.de/~krienke/mypgp.html,Fax: [phone]
>
> _______________________________________________
> Digikam-users mailing list
> [hidden email]
> https://mail.kde.org/mailman/listinfo/digikam-users
>
>

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[krienke]

Am Montag, 31. Mai 2010 schrieb Gilles Caulier:
Hi,

I am using 1.2.0 from KDE 4.4.3. And if this was a bug in digikam this would
make sense, since I recently processed this photo a little bit using 1.2.0 for
this. Is there some more infor about this bug, when it happens exactly?

Rainer

> Sound like a problem fixed by Marcel in current implementation from
> svn (next 1.30).
>
> Which digiKam version you use exactly ?
>
> Gilles Caulier
>
> 2010/5/31 Rainer Krienke <[hidden email]>:
> > Hello,
> >
> > I have a strange problem with a photo thats already some years old and I
> > thought everything was fine, up to now. It was taken with a Nikon D80 as
> > jpg (not RAW) and later I processed it using digikam.
> > I never activated littel CMS in digikam and never convert my photos from
> > sRGB to anything else. I am not doinf any color correction in any of my
> > systems components at least not to my knowledge. So sRGB should be used
> > everywhere.
> >
> > The photo:

--
Rainer Krienke, Uni Koblenz, Rechenzentrum, A22, Universitaetsstrasse  1
56070 Koblenz, http://www.uni-koblenz.de/~krienke, Tel: [phone]
PGP: http://www.uni-koblenz.de/~krienke/mypgp.html,Fax: [phone]

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[Gilles Caulier-4]

Look like showfoto display this image in a better way than FF :

http://farm5.static.flickr.com/4040/4655083969_1022c535ed_b.jpg

Gilles

2010/5/31 Rainer Krienke <[hidden email]>:

> Am Montag, 31. Mai 2010 schrieb Gilles Caulier:
> Hi,
>
> I am using 1.2.0 from KDE 4.4.3. And if this was a bug in digikam this would
> make sense, since I recently processed this photo a little bit using 1.2.0 for
> this. Is there some more infor about this bug, when it happens exactly?
>
> Rainer
>
>> Sound like a problem fixed by Marcel in current implementation from
>> svn (next 1.30).
>>
>> Which digiKam version you use exactly ?
>>
>> Gilles Caulier
>>
>> 2010/5/31 Rainer Krienke <[hidden email]>:
>> > Hello,
>> >
>> > I have a strange problem with a photo thats already some years old and I
>> > thought everything was fine, up to now. It was taken with a Nikon D80 as
>> > jpg (not RAW) and later I processed it using digikam.
>> > I never activated littel CMS in digikam and never convert my photos from
>> > sRGB to anything else. I am not doinf any color correction in any of my
>> > systems components at least not to my knowledge. So sRGB should be used
>> > everywhere.
>> >
>> > The photo:
>
>
> --
> Rainer Krienke, Uni Koblenz, Rechenzentrum, A22, Universitaetsstrasse  1
> 56070 Koblenz, http://www.uni-koblenz.de/~krienke, Tel: [phone]
> PGP: http://www.uni-koblenz.de/~krienke/mypgp.html,Fax: [phone]
>
> _______________________________________________
> Digikam-users mailing list
> [hidden email]
> https://mail.kde.org/mailman/listinfo/digikam-users
>
>

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[Gilles Caulier-4]

The problem is the ICC color profile embedded in your image. Gimp
display a blueish photo if it converted to sRGB color space using your
ICC color profile.

Color profile is D50, not D65. It's the problem. Sound like you have
processed your image with an old digiKam version, including D50 as
sRGB color profile. This on is added automatically when you process an
image without a profile.

Now this problem have been fixed. D65 is used now with sRGB color
space by default.

The solution for you : remove the embedded color profile in your image
: use Exiftool for ex.

Gilles

2010/5/31 Gilles Caulier <[hidden email]>:

> Look like showfoto display this image in a better way than FF :
>
> http://farm5.static.flickr.com/4040/4655083969_1022c535ed_b.jpg
>
> Gilles
>
> 2010/5/31 Rainer Krienke <[hidden email]>:
>> Am Montag, 31. Mai 2010 schrieb Gilles Caulier:
>> Hi,
>>
>> I am using 1.2.0 from KDE 4.4.3. And if this was a bug in digikam this would
>> make sense, since I recently processed this photo a little bit using 1.2.0 for
>> this. Is there some more infor about this bug, when it happens exactly?
>>
>> Rainer
>>
>>> Sound like a problem fixed by Marcel in current implementation from
>>> svn (next 1.30).
>>>
>>> Which digiKam version you use exactly ?
>>>
>>> Gilles Caulier
>>>
>>> 2010/5/31 Rainer Krienke <[hidden email]>:
>>> > Hello,
>>> >
>>> > I have a strange problem with a photo thats already some years old and I
>>> > thought everything was fine, up to now. It was taken with a Nikon D80 as
>>> > jpg (not RAW) and later I processed it using digikam.
>>> > I never activated littel CMS in digikam and never convert my photos from
>>> > sRGB to anything else. I am not doinf any color correction in any of my
>>> > systems components at least not to my knowledge. So sRGB should be used
>>> > everywhere.
>>> >
>>> > The photo:
>>
>>
>> --
>> Rainer Krienke, Uni Koblenz, Rechenzentrum, A22, Universitaetsstrasse  1
>> 56070 Koblenz, http://www.uni-koblenz.de/~krienke, Tel: [phone]
>> PGP: http://www.uni-koblenz.de/~krienke/mypgp.html,Fax: [phone]
>>
>> _______________________________________________
>> Digikam-users mailing list
>> [hidden email]
>> https://mail.kde.org/mailman/listinfo/digikam-users
>>
>>
>

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[krienke]

Am Montag, 31. Mai 2010 schrieb Gilles Caulier:
Thanks Gilles,

this solution works fine.

Rainer

> The problem is the ICC color profile embedded in your image. Gimp
> display a blueish photo if it converted to sRGB color space using your
> ICC color profile.
>
> Color profile is D50, not D65. It's the problem. Sound like you have
> processed your image with an old digiKam version, including D50 as
> sRGB color profile. This on is added automatically when you process an
> image without a profile.
>
> Now this problem have been fixed. D65 is used now with sRGB color
> space by default.

--
Rainer Krienke, Uni Koblenz, Rechenzentrum, A22, Universitaetsstrasse  1
56070 Koblenz, http://www.uni-koblenz.de/~krienke, Tel: [phone]
PGP: http://www.uni-koblenz.de/~krienke/mypgp.html,Fax: [phone]

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[Christoph Leiter]

Hi Rainer,

I think, I#ve got the same problem. Could you please give me a hint how
to remove the embedded color profile. All I see is, that almost all tags
are not writeable.


Regards,
Chris


Am 05/31/2010 01:22 PM, schrieb Rainer Krienke:

> Am Montag, 31. Mai 2010 schrieb Gilles Caulier:
> Thanks Gilles,
>
> this solution works fine.
>
> Rainer
>
>> The problem is the ICC color profile embedded in your image. Gimp
>> display a blueish photo if it converted to sRGB color space using your
>> ICC color profile.
>>
>> Color profile is D50, not D65. It's the problem. Sound like you have
>> processed your image with an old digiKam version, including D50 as
>> sRGB color profile. This on is added automatically when you process an
>> image without a profile.
>>
>> Now this problem have been fixed. D65 is used now with sRGB color
>> space by default.
>
>
>
> _______________________________________________
> Digikam-users mailing list
> [hidden email]
> https://mail.kde.org/mailman/listinfo/digikam-users

--
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Saalangerstr. 52    Mobil: [phone]
D-82377 Penzberg    [hidden email]
http://www.christoph-leiter.de (Rennrad)
http://www.unsere-berge.de (Bergsteigen/Klettern)
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[krienke]

Am Montag, 31. Mai 2010 schrieb Christoph Leiter:
Hello,

I also had to read the manual of exiftool several times but finally I found it
and its really easy:

exiftool -icc_profile=  <filename.jpg>

Have a nice day
Rainer

> Hi Rainer,
>
> I think, I#ve got the same problem. Could you please give me a hint how
> to remove the embedded color profile. All I see is, that almost all tags
> are not writeable.
>
>
> Regards,
> Chris
>
> Am 05/31/2010 01:22 PM, schrieb Rainer Krienke:
> > Am Montag, 31. Mai 2010 schrieb Gilles Caulier:
> > Thanks Gilles,
> >
> > this solution works fine.
> >
> > Rainer
> >
> >> The problem is the ICC color profile embedded in your image. Gimp
> >> display a blueish photo if it converted to sRGB color space using your
> >> ICC color profile.
> >>
> >> Color profile is D50, not D65. It's the problem. Sound like you have
> >> processed your image with an old digiKam version, including D50 as
> >> sRGB color profile. This on is added automatically when you process an
> >> image without a profile.
> >>
> >> Now this problem have been fixed. D65 is used now with sRGB color
> >> space by default.
> >
> > _______________________________________________
> > Digikam-users mailing list
> > [hidden email]
> > https://mail.kde.org/mailman/listinfo/digikam-users

--
Rainer Krienke, Uni Koblenz, Rechenzentrum, A22, Universitaetsstrasse  1
56070 Koblenz, http://www.uni-koblenz.de/~krienke, Tel: [phone]
PGP: http://www.uni-koblenz.de/~krienke/mypgp.html,Fax: [phone]

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[Christoph Leiter]

Rainer,

just pressed return on exactly the same command line ;-)
I had to read the manual Several times + 1.

Thanks and good night!
Chris

Am 05/31/2010 09:26 PM, schrieb Rainer Krienke:

> Am Montag, 31. Mai 2010 schrieb Christoph Leiter:
> Hello,
>
> I also had to read the manual of exiftool several times but finally I found it
> and its really easy:
>
> exiftool -icc_profile=<filename.jpg>
>
> Have a nice day
> Rainer
>
>

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