[Bug 307357] New: Metadata for DNG files generatgeed Lightroom 3 and 4 are not displayed in Edit mode

[bogdan]

https://bugs.kde.org/show_bug.cgi?id=307357

            Bug ID: 307357
          Severity: normal
           Version: 2.9.0
          Priority: NOR
          Assignee: [hidden email]
           Summary: Metadata for DNG files generatgeed Lightroom 3 and 4
                    are not displayed in Edit mode
    Classification: Unclassified
                OS: Linux
          Reporter: [hidden email]
          Hardware: Other
            Status: UNCONFIRMED
         Component: Metadata
           Product: digikam

- Metadata for DNG files from Lightroom 3 and 4 are not displayed.
- In preview mode only limited metadata is available for viewing. IPTC metadata
is completely empty for DNG while is fully available for JPEG in preview and in
Edit mode
- Metadata is available for viewing and editing in LR, which means that it is
there.
-It is possible that other types of DNG files have the same issue, but I could
not test that.


Reproducible: Always

Steps to Reproduce:
1. Open a DNG in edit mode
2. all metadata is greyed out
3. -


Expected Results:  
To see metadata: EXIT, IPTC and XMP

Show metadata

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[bogdan]

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[Gilles Caulier-4]

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--- Comment #1 from Gilles Caulier <[hidden email]> ---
>1. Open a DNG in edit mode

==> In digiKam Image Editor or Metadata kipi plugin ?

Gilles Caulier

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[bogdan]

https://bugs.kde.org/show_bug.cgi?id=307357

[hidden email] changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Metadata for DNG files      |Metadata for DNG files
                   |generatgeed Lightroom 3 and |generated Lightroom 3 and 4
                   |4 are not displayed in Edit |are not displayed in Edit
                   |mode                        |mode

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[bogdan]

https://bugs.kde.org/show_bug.cgi?id=307357

--- Comment #2 from [hidden email] ---
Created attachment 74174
  --> https://bugs.kde.org/attachment.cgi?id=74174&action=edit
DNG album view - some metadata available

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[bogdan]

https://bugs.kde.org/show_bug.cgi?id=307357

--- Comment #3 from [hidden email] ---
It is the Image Editor I was talking about.

However, since you brought it up the Metadata editor is just a little better.
It shows something, but it is not complete.  For example the DNG file was
geotagged, but the Metadata editor does not show this information.
On the other hand, in the main album  view  if a picture is selected, that
information (GPS) is available in the EXIF section.

I will attach the two views

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[bogdan]

https://bugs.kde.org/show_bug.cgi?id=307357

--- Comment #4 from [hidden email] ---
Created attachment 74175
  --> https://bugs.kde.org/attachment.cgi?id=74175&action=edit
DNG image edit mode - no metadata available

In this mode all the metadata information is greyed out.

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=307357

--- Comment #5 from Gilles Caulier <[hidden email]> ---
Do you know panels from right side bar, where metadata, gps, properties, etc...
informations are available ?

In editor, you can also display thumbbar with tootips displaying metadata as in
icon-view...

Gilles Caulier

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[Gilles Caulier-4]

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--- Comment #6 from Gilles Caulier <[hidden email]> ---
A screenshot of metadata panels visible...

http://www.flickr.com/photos/digikam/8025492511/sizes/o/in/photostream/

Gilles Caulier

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[Marcel Wiesweg]

https://bugs.kde.org/show_bug.cgi?id=307357

--- Comment #7 from Marcel Wiesweg <[hidden email]> ---
The best idea will be to provide us a test image which shows the described
problems for you. Maybe you can scale down an image in lightroom to 1x1 px and
add the metadata that you describe, then attach it here.

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[bogdan]

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--- Comment #8 from [hidden email] ---
(In reply to comment #6)
> http://www.flickr.com/photos/digikam/8025492511/sizes/o/in/photostream/

Gilles,

there are 2 things different here:

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[bogdan]

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--- Comment #9 from [hidden email] ---
(In reply to comment #7)
> problems for you. Maybe you can scale down an image in lightroom to 1x1 px

Marcel,

 A DNG is like a RAW file. It cannot be resized. if you need a LR DNG I can
setup a ftp site :
Please do
 ftp hlevca.com  as anonymous.  it is the only file there.
Please let me know when you are done so I will disable the service  

On another note:
 in showfoto the metadata is visible in edit mode.  It must just be a quirk in
the way digikam handles Image Edit mode for LR DNG files.

Bogdan

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[bogdan]

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--- Comment #10 from [hidden email] ---
One nice thing is that digikam gets right the star settings from LR/generic
DNG. So there is something reading the metadata, but the display gets truncated
in one view and is completely greyed out in Edit mode.

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[Marcel Wiesweg]

https://bugs.kde.org/show_bug.cgi?id=307357

--- Comment #11 from Marcel Wiesweg <[hidden email]> ---
There are two issues here, metadata access from the file and a UI problem. For
the first, I resort to the exiv2 command line tool to rule out any secondary
influence.

1) Neither exiv2 nor exiftool show IPTC metadata in a file. Which usually means
there is none. exiftool shows some makernotes which exiv2 (and thus digikam)
does apparently not support.

2) I cannot reproduce the problem with the image editor metadata panel here in
a short test

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[bogdan]

https://bugs.kde.org/show_bug.cgi?id=307357

--- Comment #12 from [hidden email] ---
I added another file on my ftp server and removed the old one. The new one has
GPS data and it is shown it the normal album view in digikam, but in the Image
Editor view nothing is shown ( greyed-out, the initial 2 attached print screens
show this issue).

An exiv2 test shows the information below. You can notice that exiv2 has some
problems reading Sony2 directory, which contains a lot of information. I wonder
how can tat be read in other tools than LR. DNG is supposed to be an open
format, but allows (if I remember well) some proprietary data?

I am surprised that you cannot reproduce the Image Editor greyed out issue.
What could be different on my system?

exiv2 BHLEVCA_20110728_0911.dng
Error: Directory Sony2 with 25665 entries considered invalid; not read.
File name       : BHLEVCA_20110728_0911.dng
File size       : 20619768 Bytes
MIME type       : image/tiff
Image size      : 6080 x 4048
Camera make     : SONY
Camera model    : DSLR-A900
Image timestamp : 2011:07:28 16:49:56
Image number    :
Exposure time   : 1/250 s
Aperture        : F2.8
Exposure bias   : -1 EV
Flash           : No, compulsory
Flash bias      :
Focal length    : 200.0 mm (35 mm equivalent: 200.0 mm)
Subject distance:
ISO speed       : 400
Exposure mode   : Auto
Metering mode   : Center weighted average
Macro mode      :
Image quality   :
Exif Resolution : 6080 x 4048
White balance   : Auto
Thumbnail       : None
Copyright       : Bogdan Hlevca (2011)
Exif comment    :

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[Marcel Wiesweg]

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--- Comment #13 from Marcel Wiesweg <[hidden email]> ---


> An exiv2 test shows the information below. You can notice that exiv2 has
> some problems reading Sony2 directory, which contains a lot of information.
> I wonder how can tat be read in other tools than LR. DNG is supposed to be
> an open format, but allows (if I remember well) some proprietary data?

All Makernotes are proprietary, unfortunately. With unpublished specification.
All support depends on reverse engineering.

> I am surprised that you cannot reproduce the Image Editor greyed out issue.
> What could be different on my system?

Not sure. I still cannot reproduce. Anyone else?

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[Gilles Caulier-4]

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--- Comment #14 from Gilles Caulier <[hidden email]> ---
Marcel,

>> I am surprised that you cannot reproduce the Image Editor greyed out issue.
>> What could be different on my system?

>Not sure. I still cannot reproduce. Anyone else?

I cannot reproduce it here too...

Gilles

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[Gilles Caulier-4]

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--- Comment #15 from Gilles Caulier <[hidden email]> ---
Bogdan,

This file still valid using last digiKam 4.2.0 and Exiv2 0.24 ?

Gilles Caulier

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[bogdan]

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--- Comment #16 from [hidden email] ---
(In reply to Gilles Caulier from comment #15)

Unfortunately the problems still exist. The normal mode show the metadata in
the DNG file, while in Edit mode everything is greyed out

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[Gilles Caulier-4]

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           What    |Removed                     |Added
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            Version|2.9.0                       |4.2.0

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