https://bugs.kde.org/show_bug.cgi?id=419409
Bug ID: 419409
Summary: exif dates shown are wrong in some images
Product: digikam
Version: 7.0.0
Platform: Compiled Sources
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Metadata-Exif
Assignee: digikam-bugs-n...@kde.org
Reporter: martin.alth...@mail.de
Target Milestone: ---
SUMMARY
On a series of images the dates read out are wrong, or even fictitious. Many
images of that series (Xiaomi MI3, ran through Wechat, seems common
denominator) are shown in thumbnail view as having identical date/time, which
is that 2002 date. Looking with exiv2 gives limited results, exiftool does
better. The probable date of the hamburger picture is 2014:08:25 19:28:17
EXPECTED RESULT
Don't show dates that are not in the file. And give preference to "Date/Time
Original" or GPS dates. Or make the user aware of discrepancies.
SOFTWARE/OS VERSIONS
Qt 5.9.5 (x86_64-little_endian-lp64 shared (dynamic) release build; by GCC
7.4.0) on "xcb"
OS: Ubuntu 18.04.4 LTS [linux version 4.15.0-91-generic]
ADDITIONAL INFORMATION
https://my.mail.de/dl/61cb9e7c7c079b4803cdf8efe4a1de46
https://my.mail.de/dl/7ce6c711fe8a9554f38ce4e29321f2d4
One example (hamburger picture):
digikam-properties:
created 06.08.15 14:40 where does that come from?
digikam-metadata:
shows same GPS date/time as exiftool
Date and time (digitized) 2002:12:08 12:00:00 fictitious, but apparently in the
file
Date and time (original) 2014:08:25 19:28:17 (likely correct date)
In the Batch Queue Manager, [date:yyyy-MM-ddThh.mm.ss] pulls out the
2015-08-06T14.40.01 fictitious timestamp
Item/Adjust Date&Time shows
DigiKam timestamp:06.08.2015 14:40:02
EXIF/IPTC/XMP shows: 2002:12:08 12:00:00 wrong date, batch setting dates would
cause a mess.
EXIF: original actually gets the correct 2014 date
EXIF: digitized gets the 2002 date
$ exiv2 mmicroMsg.1409-hamburger.jpg
File name : microMsg.1409009293506-bad-date.jpg
File size : 1886048 Bytes
MIME type : image/jpeg
Image size : 4208 x 3120
Camera make : XIAOMI
Camera model : MI3
Image timestamp : 2014:08:25 19:28:17 (likely correct date)
not output: create date
exiftool:
Create Date : 2002:12:08 12:00:00
Date/Time Original : 2014:08:25 19:28:17 (likely correct date)
GPS Date/Time : 2014:08:25 18:33:36Z
digikam version 7.0.0-beta3
CPU cores: 4
Eigen: 3.3.4
Exiv2: 0.27.2
Exiv2 can write to Jp2: Yes
Exiv2 can write to Jpeg: Yes
Exiv2 can write to Pgf: Yes
Exiv2 can write to Png: Yes
Exiv2 can write to Tiff: Yes
Exiv2 supports XMP metadata: Yes
HEIF encoding support: Yes
ImageMagick codecs support: No
KF5: 5.44.0
LensFun: 0.3.2-0
LibCImg: 130
LibJPEG: 80
LibJasper support: No
LibLCMS: 2090
LibLqr support: Yes
LibPGF: 7.19.03
LibPNG: 1.6.36
LibRaw: 0.20.0
LibTIFF: 4.0.9
Marble: 0.27.20
Parallelized demosaicing: Yes
Qt: 5.9.5
Qt WebEngine support: Yes
VKontakte support: No
AkonadiContact support: No
Baloo support: Yes
Calendar support: Yes
DBus support: Yes
Database backend: QSQLITE
HTML Gallery support: Yes
LibGphoto2: 2.5.16
LibOpenCV: 4.3.0-pre
Media player support: No
Panorama support: No
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