[Digikam-devel] [Bug 126149] New: Camera stores both jpeg and raw (nef), handle both as one

[fj.cruz at supercable.es]

---- Roger Larsson <roger.larsson at norran.net> escribió: 
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> http://bugs.kde.org/show_bug.cgi?id=126149         
>            Summary: Camera stores both jpeg and raw (nef), handle both as
>                     one
>            Product: digikam
>            Version: 0.8.0
>           Platform: unspecified
>         OS/Version: Linux
>             Status: NEW
>           Severity: wishlist
>           Priority: NOR
>          Component: general
>         AssignedTo: digikam-devel kde org
>         ReportedBy: roger.larsson norran net
> 
> 
> Version:           0.8.0 (using KDE 3.4.2 Level "b" , SUSE 10.0)
> Compiler:          Target: i586-suse-linux
> OS:                Linux (i686) release 2.6.13-15.8-default
> 
> My camera can be configured to store both
> jpeg and raw (nef) at the same time. Like this
> rln_0220.jpg
> rln_0220.nef
> 
> So for every picture I have both an JPEG
> and a raw. (The raw does not show properly
> but that is another issue)
> 
> Anyway my wish is to be able to configure
> digikam to view only the jpeg, but let some
> operations work on both.
> (NEF should be viewed as a negative and jpg as
> the processed image.)
> _______________________________________________
I don't know wich model  your camera is , but thinking it works in the same way that Nikon D50 does, I think that you said, maybe make no sense. These are my reasons:

- The jpeg file is a low resolution/low quality pictrue. On the other hand, this file has suffered some adjusts that the camera makes on all the images that have been captured in other formats that are not RAW one. Moreover this file is a 8-bits image.
- The RAW  file is the image as is capured by the camera sensor, this is, without any type of transform or adjust. This file is a 16-bits picture (well, really, it has 12-bits per pixel).
- In short, we have two differents files: one of them is a low quality and transformed image (jpeg) and the other one  is a high quality and without any adjust picture (nef), this is, the file contents the raw data of the subject as is caputred by the camera sensor, so, the changes you make to one of them don't produce the same results on the other. 

PS: excuse my poor english.

Paco Cruz.