Using digiKam to develop professional photos

[Knut Krause]

Hi,

I just started to learn about developing photos and now the big moment is
near and I want to print a photo in poster size.

I got the image here as a Canon RAW (*.cr2) file and I try to get the very
best out of it using digiKam.

Is there somewhere a nice howto for a professional workflow using digiKam?

AFAIK has the RAW image no color space so I think the first step would
involve to convert it to AdobeRGB, or? Do I do this during the RAW import
selecting the "work color space"?

Do I have an AdobeRGB image then? I tried this once and the metadata says
unkown color profile. The next question: Since sRGB is used for computer
display and AdobeRGB would simply look "wrong" do I have to enable the color
managed view or disable it during my work?

All I want to make sure: Get the best out of my RAW and to the photo
printing service :)

Would be really nice if the more experienced users could provide some nice
tips.

Regards


Knut
_______________________________________________
Digikam-users mailing list
[hidden email]
https://mail.kde.org/mailman/listinfo/digikam-users

[Marcel Wiesweg]

> I just started to learn about developing photos and now the big moment is
> near and I want to print a photo in poster size.
>
> I got the image here as a Canon RAW (*.cr2) file and I try to get the very
> best out of it using digiKam.
>
> Is there somewhere a nice howto for a professional workflow using digiKam?
>
> AFAIK has the RAW image no color space so I think the first step would
> involve to convert it to AdobeRGB, or? Do I do this during the RAW import
> selecting the "work color space"?

If you want to work in AdobeRGB, set this as the workspace profile in
digikam's settings. The color management settings for RAW import are somewhat
separate, easiest is that you set the output profile to Adobe RGB as well.
If you specify "no" input profile, libraw will do its best to get the colors.
For the perfect result, you'd need an input profile specific to your camera.

> Do I have an AdobeRGB image then? I tried this once and the metadata says
> unkown color profile.

You need to look at the color tab in the right sidebar

> The next question: Since sRGB is used for computer
> display and AdobeRGB would simply look "wrong" do I have to enable the
> color managed view or disable it during my work?

Yes. In the editor, you can switch it on and off and see that the colors will
be slightly desaturated without it. It's much more obvious with wide-gamut
profiles. The output is simply wrong.
Isn't color-managed view enabled by default?
(again, for the perfect result, you'd need an output profile specific for your
screen. If you dont have the necessary hardware device, or a cheap notebook
LCD, then sRGB should be good enough. I'm using sRGB here as well)

Marcel



_______________________________________________
Digikam-users mailing list
[hidden email]
https://mail.kde.org/mailman/listinfo/digikam-users

[Knut Krause]

Hi,

if I set my workspace profile to AdobeRGB do I have to enable or disable the
color managed view in the editor then? I'm completely confused. I think what I
want is: encode the image in AdobeRGB and view it as sRGB, or? How do I get
this?

Before I spent a whole lot of money in poster size development I would like to
understand what I do ;)

Cheers

On Friday 19 November 2010 12:07:48 Marcel Wiesweg wrote:

> > I just started to learn about developing photos and now the big moment is
> > near and I want to print a photo in poster size.
> >
> > I got the image here as a Canon RAW (*.cr2) file and I try to get the
> > very best out of it using digiKam.
> >
> > Is there somewhere a nice howto for a professional workflow using
> > digiKam?
> >
> > AFAIK has the RAW image no color space so I think the first step would
> > involve to convert it to AdobeRGB, or? Do I do this during the RAW import
> > selecting the "work color space"?
>
> If you want to work in AdobeRGB, set this as the workspace profile in
> digikam's settings. The color management settings for RAW import are
> somewhat separate, easiest is that you set the output profile to Adobe RGB
> as well. If you specify "no" input profile, libraw will do its best to get
> the colors. For the perfect result, you'd need an input profile specific
> to your camera.
>
> > Do I have an AdobeRGB image then? I tried this once and the metadata says
> > unkown color profile.
>
> You need to look at the color tab in the right sidebar
>
> > The next question: Since sRGB is used for computer
> > display and AdobeRGB would simply look "wrong" do I have to enable the
> > color managed view or disable it during my work?
>
> Yes. In the editor, you can switch it on and off and see that the colors
> will be slightly desaturated without it. It's much more obvious with
> wide-gamut profiles. The output is simply wrong.
> Isn't color-managed view enabled by default?
> (again, for the perfect result, you'd need an output profile specific for
> your screen. If you dont have the necessary hardware device, or a cheap
> notebook LCD, then sRGB should be good enough. I'm using sRGB here as
> well)
>
> Marcel
>
>
>
> _______________________________________________
> 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