[Digikam-users] How to set a correct white balance in RAW import mode?

[Gilles Caulier]

2010/2/4 Etienne Imguimbert <eimguimbert at gmail.com>:
> Hello
> I've enabled backports repository. After updating, digikam-1.0.0 were
> installed. But this version does not propose nor the pipette tool for
> setting the white balance when importing raw file, nor a mean measure
> of the colors on a selected area... ?

This is not yet implemented in gui...

Gilles Caulier

>
> Thanks
> Etienne
>
>
> 2010/2/3 Jonas Norlander <jonorland at gmail.com>:
>> On 3 February 2010 12:13, Etienne Imguimbert <eimguimbert at gmail.com> wrote:
>>> Hello digikam users !
>>>
>>> I'm new to the list, and especially newbie in image processing. So
>>> please excuse me if my questions seem a bit simple.
>>>
>>> I'm actually trying to import correctly the raw pictures produced by
>>> my new Panasonic G1 camera, and it seems a bit tricky.
>>>
>>> I've read on the Internet that it is much better to set the white
>>> balance before converting the raw to tiff or jpeg. However I can not
>>> find a reliable method for performing this simple task, that would be
>>> applicable within digikam. I think particularly on the method exposed
>>> in the following Gimp/Ufraw tutorial (excuse me, it is in french
>>> language): http://www.gimpfr.org/document/document_22/
>>> To summarize this tutorial: the user selects an area of the picture
>>> that should be white and homogeneous (by example an eye of the model),
>>> and ufraw calculates the mean values of R, G and B of this area. The
>>> white balance is well performed when these mean values of the selected
>>> area get the same value of R, G & B, by playing with the temperature
>>> and green cursors.
>>>
>>> As far as I know, 2 tools are available to white balance the pic into
>>> digikam: in raw processing mode and in image editing mode. But
>>> depending on the current mode, the tool sets are not identical ! I
>>> think particularly to the pipette that does not appear in raw import
>>> mode and that should help greatly to set the white balance.
>>> Furthermore I did not find a way to measure the mean values of colors
>>> of an area selected by the user. Is it possible in digikam?
>>>
>>> So my questions are:
>>> - Is the method explained above a reliable method to get a correct
>>> white balance?
>>> - Is it possible to apply this method in digikam, especially in raw import mode?
>>>
>>> I use Digikam in Kubuntu Karmic 9.10 (I think it is the 1.0-beta5
>>> version), amd64 platform
>>>
>>
>> You should enable the backports repository wich contains Digikam 1.0.0.
>>
>> / Jonas
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