[Digikam-users] Color Management, various questions.

[Tommaso Schiavinotto]

So, I did some trials. And I'm quite happy with the results.

I decided to do not use the "Use color managed view" because then the 
previews
of fixing tools gives me strange behaviours (for instance Original and 
Target are different before I do anything on it).

I've arranged the color management in my workflow.. I've some problem 
with the interface of
the Color Management in Image Editor. I think I should get a clear idea 
about the problems and submit a bug report,
but for instance a missing feature is to have a "color profile 
directory" so that each time that I've to select a profile I don't have
to browse the file system.

Is there any way to make that the batch raw converter puts the exif data 
and color profile as well in the jpeg?

--Tommaso

Caulier Gilles wrote:
> Le Dimanche 14 Mai 2006 04:41 PM, Tommaso Schiavinotto a écrit :
>   
>> Caulier Gilles wrote:
>>     
>>> Le Dimanche 14 Mai 2006 01:59 PM, Tommaso Schiavinotto a écrit :
>>>       
>> [...]
>>
>>     
>>>> What I would like to understand is the function of the
>>>> "Use color managed view". If it is unchecked, what am I seeing on the
>>>> monitor?
>>>>         
>>> This option is only to render color using your monitor color profile to
>>> trying to render properly all color in screen. It's not necessary to use
>>> it and don't change anything in image data. It's just use to render image
>>> in editor and image plugins preview. I have just commited changes in svn
>>> to increase performance about this option...
>>>       
>> I had updated the source this morning (and update exiv2 too, I sent a
>> message on the group for a compilation problem) ...
>> Anyway it really it's too slow in my computer (just resizing the window
>> takes few 3/4 seconds, and it's quite annoying), I noticed the
>> difference in colors if I use it or not, and if I work on levels and
>> curves I would expect to work on "real" colors...
>>     
>
> No. I have commited these change today at 3:00 PM paris hours.
>
>   
>>>> Another problem is how should I behave to have pictures that I want to
>>>> store or send for printing as AdobeRGB, and pictures for the web (read
>>>> flickr) in sRGB.
>>>>
>>>> The last problem that I have is that sometime I get pictures from a
>>>> Dimage z5, how can I change the input profile only for those pictures?
>>>> Or maybe I don't care because they are simply JPGs?
>>>>         
>>> Paco, if you can give more informations here... Thanks in advance...
>>>       
>> I would really appreciate that... :) I think that digikam is almost
>> self-explanatory,
>> and it has really simplified things for the color management, but I'm
>> particularly dumb and
>> I've always failed to understand how to exploit the color-management in
>> the workflow...
>>     
>
> Explanation will come with digiKam handbook. It's under updating by Gerhard 
> Kulzer on svn. Not yet complete... Can be long. All help welcome.
>
>   
>>>> Would that be possible to have digikam choosing the right input profile
>>>> based on the EXIF data?
>>>>         
>>> Well, yes, this is my plan later 0.9.0. It's not very complicated to do,
>>> but require sustential changes in digiKam at startup to parse an ICC
>>> profile repository. Note that UFRAW project have planed to do the same
>>> rules in the future...
>>>       
>> I followed the evolution of digikam from the 0.7.0 and the step that
>> you've done this time is really impressive.
>>
>>     
>
> Thanks (:=)))... I'm not alone !
>
>   
>> Uhm... one more observation. On the info about the picture of Dynax 5D
>> it is possible to have the AF point. I can't find it
>> on the makernotes, while it would be nice to be visualised on the
>> picture as well (I suppose this can wait the
>> release 4.x.x :) )
>>     
>
> Ah, the big problem of makernote. You need to process a reverse enginerring 
> with you camera to take picture and check makenote tags will changes when you 
> set a camera settings ! This is can be long. You can use Exiv2 or Exiftools 
> to read unrecognized values from makernote and trying to find the right tags 
> used.
>
> If you find someting, please send me a mail, i will update Exiv2 accordinly.
>
> Gilles
>
>   
>> --Tommaso
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>>     
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