[Bug 201746] New: Invalid TIFF output in Editor and Batch queue manager

[Michal Thoma]

https://bugs.kde.org/show_bug.cgi?id=201746

           Summary: Invalid TIFF output in Editor and Batch queue manager
           Product: digikam
           Version: unspecified
          Platform: Ubuntu Packages
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: [hidden email]
        ReportedBy: [hidden email]


Version:           1.0.0-b3 (using KDE 4.2.2)
OS:                Linux
Installed from:    Ubuntu Packages

The Save as TIFF in editor and also convert to TIFF in Batch queue manager
creates invalid file which can't be open later with Digikam or anything else.
The thumbnail is created and displayed though the view and edit of the file is
not possible. The GIMP also won't open the file and so won't Adobe Photoshop
CS2. The both compressed and uncompressed TIFFs are invalid.

I tried to save TIFF in Editor with 0.10.0 and there was no problem.

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=201746


Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|general                     |Batch Queue Manager
            Version|unspecified                 |1.0.0-beta3




--- Comment #1 from Gilles Caulier <caulier gilles gmail com>  2009-07-28 11:25:05 ---
Tiff metadata are patched by Exiv2 library after that TIFF file is created. Go
to Help/Components Info dialog and look which Exiv2 version you use.

Anyway, i recommend to use Exiv2 0.18.2 with digiKam...

Gilles Caulier

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[Michal Thoma]

https://bugs.kde.org/show_bug.cgi?id=201746





--- Comment #2 from Michal Thoma <michal thoma cz>  2009-07-28 11:52:00 ---
I have LibExiv2 0.18 and LIBTIFF 3.8.2

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[Gilles Caulier-4]

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--- Comment #3 from Gilles Caulier <caulier gilles gmail com>  2009-07-28 11:55:21 ---
Libtiff is fine. but updated Exiv2 to 0.18.2 and try again.

Note : digiKam and libkexiv2 need to be recompiled...

Gilles Caulier

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[Michal Thoma]

https://bugs.kde.org/show_bug.cgi?id=201746





--- Comment #4 from Michal Thoma <michal thoma cz>  2009-07-28 12:52:56 ---
OK, I'll give it a try though will take me some time...

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[Michal Thoma]

https://bugs.kde.org/show_bug.cgi?id=201746





--- Comment #5 from Michal Thoma <michal thoma cz>  2009-07-30 00:35:27 ---
I was thinking and I have some doubts that Exiv2 is culprit. When I edit
metadata like caption of TIFF image, it's written correctly and image can be
still displayed correctly...

I uploaded invalid tiff here for reference:
http://michal.thoma.cz/digikam/bad-tiff.tif

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[Marcel Wiesweg]

https://bugs.kde.org/show_bug.cgi?id=201746


Marcel Wiesweg <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |FIXED




--- Comment #6 from Marcel Wiesweg <marcel wiesweg gmx de>  2009-08-01 15:44:19 ---
SVN commit 1005615 by mwiesweg:

If the image does not have alpha, we must not set TIFFTAG_EXTRASAMPLES at all.
If setting UNASSOC_ALPHA, libtiff assumes the last value for a pixel is a mask.
When settings samples_per_pixel to three, there are 3-1=2 color channels left
which libtiff (and noone really) cannot handle.

BUG: 201746

 M  +3 -1      NEWS  
 M  +0 -2      libs/dimg/loaders/tiffloader.cpp  


WebSVN link: http://websvn.kde.org/?view=rev&revision=1005615

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[Gilles Caulier-4]

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--- Comment #7 from Gilles Caulier <caulier gilles gmail com>  2009-08-17 11:24:43 ---
SVN commit 1012254 by cgilles:

backport commit #1005615
CCBUGS: 201746


 M  +0 -2      kpwriteimage.cpp  


WebSVN link: http://websvn.kde.org/?view=rev&revision=1012254

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Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|1.0.0-beta3                 |1.0.0




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[bugzilla_noreply]

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[hidden email] changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|BatchQueueManager           |BatchQueueManager-Tool-Conv
                   |                            |ert

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