[Digikam-devel] [Bug 211758] Saving TIFF-16 compressed using exiv2 0.18 shows odd results

[Andreas Huggel]

https://bugs.kde.org/show_bug.cgi?id=211758





--- Comment #29 from Andreas Huggel <ahuggel gmx net>  2010-04-06 17:44:23 ---
Next is the error 'TIFF directory is missing required "ImageLength" field.'

The root cause for that message is the JPEG thumbnail which is included in
these digiKam generated TIFFs as a second "page" (IFD1). Presumably these tags
were copied from the Exif metadata of a JPEG with an Exif thumbnail.

This can be fixed by deleting all Exif.Thumbnail.* tags (the 2nd "page") from
the TIFF image (or not writing them in the first place). That can be done by
digiKam or exiv2, not sure yet if it should be in exiv2 (as part of
http://dev.exiv2.org/issues/show/668, will find out when it comes to TIFF-like
RAW images).

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