[Digikam-devel] [Bug 139264] New: digikam sorts pictures with wrong exif tag

[Yuchen Wang]

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http://bugs.kde.org/show_bug.cgi?id=139264         
           Summary: digikam sorts pictures with wrong exif tag
           Product: digikam
           Version: unspecified
          Platform: SuSE RPMs
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: digikam-devel kde org
        ReportedBy: cosmorning yahoo com


Version:           0.9.0, with kipi library version 0.1.4 (using KDE KDE 3.5.1)
Installed from:    SuSE RPMs
OS:                Linux

I started using digikam to manage my pictures recently. I am using version 0.9.0. However, I found when I switched to calendar view (Dates view), digikam sorts my pictures by an EXIF tag "DateTime", instead of tag "DateTimeOriginal". I have some pictures touched by Adoble Photoshop Album, which changed the tag "DateTime". See my attachment. The picture was taken on 12/21/2005, but processed from raw in 1/1/2006. However, it shows up in my calendar January 2006. I think it is better to sort pictures by tag "DateTimeOriginal" if it is available, since this field holds most trustable information for the picture. Following is the print out of the exiv2 from command line: 

Exif.Image.DateTime                          Ascii      20  2006:01:01 22:36:19
Exif.Image.YCbCrPositioning                  Short       1  Centered
Exif.Image.ReferenceBlackWhite               Rational    6  0/1 255/1 0/1 255/1 0/1 255/1
Exif.Image.ExifTag                           Long        1  284
Exif.Photo.ExposureTime                      Rational    1  1/500 s
Exif.Photo.FNumber                           Rational    1  F11
Exif.Photo.ExposureProgram                   Short       1  Auto
Exif.Photo.ExifVersion                       Undefined   4  48 50 50 48
Exif.Photo.DateTimeOriginal                  Ascii      20  2005:12:21 08:35:23
Exif.Photo.DateTimeDigitized                 Ascii      20  2005:12:21 11:35:23

Please take a look. Thanks.