Index of EXIF-metadata from jpeg files by TREX

Hello,
I have the following scenario:
We have a central fileserver with a lot of marketing pictures. Our marketing people are looking for a solution to search pictures by data stored in the EXIF-metadata of the jpeg-files.
So I like to integrate this fileserver as a repository in KM, set up an index and let TREX do the search (as of note 663630 TREX can search the EXIF-Data of JPEG-Files).
As goodie I want to give the marketing people the possibility to browse through the pictures in an image gallery. This gallery should be consisting of a query-based taxonomy where all the pictures are sorted by special EXIF-data (e.g. name of the photographer).
Until now I have integrated the fileserver (as a FS-Repository) and create an index.
Before index creation I added the mime-type image/jpeg to the TREXValidMimeTypes.ini and restarted TREX.
After indexing the pictures could be found by its name, but the EXIF-data is not indexed.
Now my question:
Why TREX doesnt index the EXIF-metadata?
And how can I use the EXIF-data in an taxonomy?
System:
EP6.0 on WebAS 6.40 SPS16
TREX SPS16 Patch 2
KMC SPS16 Patch 2
Greetings from Berlin, Germany
Jens

Greetings to Berlin,
when triggered by KM, TREX will only index metadata that is known to KM as KM propertis.
I do not know in detail and am not at all sure, but you could try to create custom properties in KM that are called exactly like your EXIF-metadata, set them to "indexable", not fill them with values on KM side and then try again.
You may want to try this for just one of the EXIF-metadata as a test.
Even if that works somehow, the maximum result is:
- Property name existent in KM
- Property thus searchable an classifiable
- BUT property values will not show up in KM, as they will remain known only to TREX
Regards, Karsten

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