[Digikam-users] RAW file preview using embedded JPEG ?

[Gilles Caulier]

2014-10-11 12:44 GMT+02:00 Vincent Tassy <photo at tassy.net>:
> Hi fellow Digikam users,
>
> When browsing an album, the thumbnails for RAW files seem to be based on the
> JPEG embedded in the RAW file as they look similar to the JPEGs generated by
> the camera (I shoot RAW+JPG).
>
> However, when I click on a RAW file to display it, the preview is apparently
> based on a default rendering of the actual RAW data (the overlay on the
> screen says "Half Size Raw Preview").
> Depending on the type of photo (I shoot alot underwater), this default
> rendering is really out of whack (overexposed for instance) so this preview
> doesn't really give you a good idea of the scene ... It's way different from
> the camera generated JPG.
>
> Is there a way to tell digikam to display the JPG embedded in the RAW file
> for this type of preview instead of actually trying to render the RAW data ?
> In my Canon camera, this embedded JPG is 1600x1200 which is enough as a
> preview for sorting, discarding photos and deciding which deserve to be
> developed ...
>
> Thanks for your feedback !
>
> I've looked through the settings so I don't think it's possible ... if you
> confirm it, I'll open a wish for it.

No need. this is how RAW file are processed in background. This is how
the RAW workflow must be done.

To resume RAW is not JPG. If you want JPG rendering, shot in JPG, not in RAW.

There i no way to reproduce the complex camera firmware post
processing into RAW decoder (libraw).

Gilles Caulier