[digiKam-users] dk 6beta2 portrait orientation problems

[Maik Qualmann]

Does the problem only occur with RAW files taken in B&W?

Maik

Am Dienstag, 16. Oktober 2018, 22:29:52 CEST schrieb digikam at 911networks.com:
> Further info:
> 
> The rotating is done by DK6beta2
> 
> 1. I copied a all bunch of files into one of the directory "watched"
> by DK6b2, including about 30 images in portrait orientation
> 2. DK6b2 first displayed the thumbnail in the portrait orientation
> 3. after a few seconds DK6b2 processed these images and rotated them
> 1 by 1 to landscape.
> 
> I'm not using DK for any image processing, I'm using Rawtherapee. Is
> there a way of disabling image processing in DK?
> 
> Thanks
> 
> Syv
> On Tue, 16 Oct 2018 07:41:14 +0200
> 
> Gilles Caulier <caulier.gilles at gmail.com> wrote:
> > Hi,
> > 
> > Welcome to the RAW shot world. You problem is well know, as you
> > have post processed the CR2 files in your camera to rotate the
> > preview in right orientation while previewing photo.
> > 
> > When you touch orientation of preview with camera, this do not
> > change the RAW data but the JPEG preview image embedded inside the
> > file.
> > 
> > The problem is : the JPEG image has no Exif info attached (where we
> > found the orientation information in standard). The only
> > information oabout orientation come from standard Exif from RAW
> > metadata. Both image are different as you post-process orientation
> > with camera. So now, digiKam is lost.
> > 
> > Perhaps this information from Canon JPEG preview can be taken from
> > private RAW makernotes, i don't know.
> > Another solution will be to render the thumbnail with RAW data
> > (using a simplified demosaicing to prevent time latency).
> > 
> > I would to know how software render the CR2 preview here ?
> > Aperture, LR, etc...
> > 
> > Best
> > 
> > Gilles Caulier
> > 
> > Le mar. 16 oct. 2018 à 02:09, <digikam at 911networks.com> a écrit :
> > > Correction:
> > > 
> > > It's not all the portrait orientation images that are rotated, but
> > > the vast majority are, see:
> > > 
> > > https://i.imgur.com/W5bNhcM.png
> > > 
> > > Thanks
> > > 
> > > Syv
> > > 
> > > .......................
> > > 
> > > Converted yesterday from dk5.9 appimage to dk6beta2 appimage.
> > > 
> > > I just noticed a problem: all my portrait orientation images are
> > > sideways:
> > > 
> > > https://i.imgur.com/rx6EMNX.png
> > > 
> > > How to deal with that?
> > > 
> > > --
> > > sknahT
> > > 
> > > vyS