[Digikam-users] Setting date/time of multiple images?

Gilles Caulier caulier.gilles at kdemail.net
Thu Dec 21 06:45:31 GMT 2006

On Wednesday 20 December 2006 22:55, Milan Zamazal wrote:
> >>>>> "GC" == Gilles Caulier <caulier.gilles at kdemail.net> writes:
>     GC> The current solution is to use the kipi-plugins 0.1.3-beta1 or
>     GC> from svn trunk:
> [...]
> Thanks, Gilles, it works and is useful!
>     GC> ...and an advanced Metadata Editor witch support Exif and IPTC :
> Does it support any lossless 48-bit color image format?

In all case, Image-data isn't meta-data. When you change metadata in picture 
you untouch image data. metadata are store in a separate area on file.

digiKam and kipi-plugins use Exiv2 library to handle EXIF and IPTC metadata. 
Actually Exiv2 can only write metadata into JPEG file.

Andreas Huggel, the Exiv2 author currently working on TIFF writting mode. Me, 
i'm working on PNG wirtting mode. Both support 48 bit color image.

About RAW, The Exiv2 library use a generic TIFF file parser. All major RAW 
file are based on TIFF format. Normally it will be possible to update tiff 
tag with metadata in RAW file, but like RAW picture format are proprietary, 
we need to perform advanced tests for that.

Also, I have added in svn trunk a native JPEG2000 codec in digiKam witch 
support 48 bits color. I will study the metadata stuff with JPEG2000 (witch 
support EXIF and IPTC too)


> Regards,
> Milan Zamazal
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