[CREATE] XMP : MakerNote

Hubert Figuiere hub at figuiere.net
Fri Jun 8 16:29:11 PDT 2007


Cyrille Berger wrote:
>> Including the blob does not solve any problem, even future. Because said
>> data is still in the corresponding Exif, there is no interest in having
>> it undecoded in the XMP.
> Well there is on interest to have it "somewhere", if the knowledge of how to 
> decode them improve in the future.

In the binary file. That's why the Exempi, by way of the XMP SDK, does
reconcile the metadata when rewriting the XMP (in the JPEG that mean
having Exif consistent with XMP)

>> XMP is *semantic*. That means what is interesting is not the content but
>> the meaning. In short Maker Notes would have to be translated into
>> something meaningfull.  That's almost what the second part tries to
>> address, but I don't think it is the right way. It should be maker
>> independent properties, ie not a separate namespace for each manufacturer.
> Hum, yes that makes sense. And relooking carefully throught all the available 
> spec, there is indeed a lot of overlap.

If you really want these field, just create a new namespace and add them.


Hub


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