How to set a correct white balance in RAW import mode?
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How to set a correct white balance in RAW import mode?
 
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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 Thank you Best regards, Etienne _______________________________________________ Digikam-users mailing list [hidden email] https://mail.kde.org/mailman/listinfo/digikam-users |
Re: How to set a correct white balance in RAW import mode?
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On 3 February 2010 12:13, Etienne Imguimbert <[hidden email]> 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 [hidden email] https://mail.kde.org/mailman/listinfo/digikam-users |
Re: How to set a correct white balance in RAW import mode?
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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 <[hidden email]>: > On 3 February 2010 12:13, Etienne Imguimbert <[hidden email]> 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 > [hidden email] > https://mail.kde.org/mailman/listinfo/digikam-users > Digikam-users mailing list [hidden email] https://mail.kde.org/mailman/listinfo/digikam-users |
Re: How to set a correct white balance in RAW import mode?
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2010/2/4 Etienne Imguimbert <[hidden email]>:
> 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 <[hidden email]>: >> On 3 February 2010 12:13, Etienne Imguimbert <[hidden email]> 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 >> [hidden email] >> https://mail.kde.org/mailman/listinfo/digikam-users >> > _______________________________________________ > Digikam-users mailing list > [hidden email] > https://mail.kde.org/mailman/listinfo/digikam-users > Digikam-users mailing list [hidden email] https://mail.kde.org/mailman/listinfo/digikam-users |
Re: How to set a correct white balance in RAW import mode?
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Hi Gilles
Are these features planned for a next version of digikam? (setting white balance in raw mode: pipette and/or mean of color values of a region selected by the user) Thanks ! Etienne 2010/2/4 Gilles Caulier <[hidden email]>: > 2010/2/4 Etienne Imguimbert <[hidden email]>: >> 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 <[hidden email]>: >>> On 3 February 2010 12:13, Etienne Imguimbert <[hidden email]> 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 >>> [hidden email] >>> https://mail.kde.org/mailman/listinfo/digikam-users >>> >> _______________________________________________ >> Digikam-users mailing list >> [hidden email] >> https://mail.kde.org/mailman/listinfo/digikam-users >> > _______________________________________________ > Digikam-users mailing list > [hidden email] > https://mail.kde.org/mailman/listinfo/digikam-users > Digikam-users mailing list [hidden email] https://mail.kde.org/mailman/listinfo/digikam-users |
Re: How to set a correct white balance in RAW import mode?
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2010/2/4 Etienne Imguimbert <[hidden email]>:
> Hi Gilles > Are these features planned for a next version of digikam? > (setting white balance in raw mode: pipette and/or mean of color > values of a region selected by the user) Yes. There is already a file in bugzilla about. The background pipette handling already exist in libraw/libkdcraw, but i need to add a gui in raw import to finalize it Gilles Caulier _______________________________________________ Digikam-users mailing list [hidden email] https://mail.kde.org/mailman/listinfo/digikam-users |
Re: How to set a correct white balance in RAW import mode?
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Hi
Thank you for your answer. But do you plan also to add the possibility for the user to adjust the size of measurement area of the pipette? I'm currently testing the last version of rawtherapee (3.0alpha), and this feature appears (by choosing the size of the pipette), as UFraw (by selecting the measurement area directly on the picture). This is a killing feature! Thanks Etienne 2010/2/5 Gilles Caulier <[hidden email]>: > 2010/2/4 Etienne Imguimbert <[hidden email]>: >> Hi Gilles >> Are these features planned for a next version of digikam? >> (setting white balance in raw mode: pipette and/or mean of color >> values of a region selected by the user) > > Yes. There is already a file in bugzilla about. > > The background pipette handling already exist in libraw/libkdcraw, but > i need to add a gui in raw import to finalize it > > Gilles Caulier > _______________________________________________ > Digikam-users mailing list > [hidden email] > https://mail.kde.org/mailman/listinfo/digikam-users > Digikam-users mailing list [hidden email] https://mail.kde.org/mailman/listinfo/digikam-users |
Re: How to set a correct white balance in RAW import mode?
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2010/2/5 Etienne Imguimbert <[hidden email]>:
> Hi > Thank you for your answer. But do you plan also to add the possibility > for the user to adjust the size of measurement area of the pipette? > I'm currently testing the last version of rawtherapee (3.0alpha), and > this feature appears (by choosing the size of the pipette), as UFraw > (by selecting the measurement area directly on the picture). > This is a killing feature! yes, it's easy to do. selection area code already exit in digiKam. Gilles > > Thanks > Etienne > > 2010/2/5 Gilles Caulier <[hidden email]>: >> 2010/2/4 Etienne Imguimbert <[hidden email]>: >>> Hi Gilles >>> Are these features planned for a next version of digikam? >>> (setting white balance in raw mode: pipette and/or mean of color >>> values of a region selected by the user) >> >> Yes. There is already a file in bugzilla about. >> >> The background pipette handling already exist in libraw/libkdcraw, but >> i need to add a gui in raw import to finalize it >> >> Gilles Caulier >> _______________________________________________ >> Digikam-users mailing list >> [hidden email] >> https://mail.kde.org/mailman/listinfo/digikam-users >> > _______________________________________________ > Digikam-users mailing list > [hidden email] > https://mail.kde.org/mailman/listinfo/digikam-users > Digikam-users mailing list [hidden email] https://mail.kde.org/mailman/listinfo/digikam-users |
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