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

[Etienne Imguimbert]

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... ?

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
> _______________________________________________
> Digikam-users mailing list
> Digikam-users at kde.org
> https://mail.kde.org/mailman/listinfo/digikam-users
>