[digiKam-users] dk 6beta2 portrait orientation problems

[digikam at 911networks.com]

On Tue, 16 Oct 2018 23:24:29 +0200
Maik Qualmann <metzpinguin at gmail.com> wrote:

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

No, it also happens with RAW files in colour. It happens with Pentax
(PEF), Pentax (DNG), Canon (CR2) and Fuji (RAF).

I usually (not always) shoot RAW with B&W/Monochrome preview (about
50%-to-60% of the time). The other 40% to 50%, the preview is colour.

I never do JPEGs directly.

Thanks

Syv

> 
> 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  
> 
> 
> 
> 


-- 
sknahT

vyS