[digiKam-users] dk 6beta2 portrait orientation problems

[digikam at 911networks.com]

Hi Maik,

I just read the thread and I don't understand how I can rebuild my
thumbnails. Maybe I missed something (according to my wife that
happens all the time).

Thanks

Syv

On Tue, 16 Oct 2018 18:10:18 +0200
Maik Qualmann <metzpinguin at gmail.com> wrote:

> Please read this thread:
> 
> http://digikam.1695700.n4.nabble.com/digiKam-users-How-to-rebuild-RAW-thumbnails-td4706839.html
> 
> Maik
> 
> Am Dienstag, 16. Oktober 2018, 16:04:51 CEST schrieb
> digikam at 911networks.com:
> > Sorry but I will have to disagree with you. dk 5.9.0 doesn't have
> > the problem:
> > 
> > dk 6beta2: 			https://i.imgur.com/W5bNhcM.png
> > dk5.9.0: 		9709.cr2: https://i.imgur.com/kFfvkrx.png
> > dk5.9.0:		9726.cr2: https://i.imgur.com/0refWgf.png
> > 
> > I have also attached the xmps for the files. If you need I can
> > also provide the cr2 (canon-raw) images.
> > 
> > To me it seem that:
> > 
> > * 5.9.0 reads the image preview (b&w preview) and uses that for
> > the thumbnails
> > * 6beta2 tries to process the image and use the resulting
> > mini-image for the thumbnails
> > 
> > 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