On Wed, 15 Apr 2009, pm wrote:

> Paul Archer wrote:
>> I'm looking for an image metadata manipulation library, and so far I've 
>> only found a couple that look usable. ruby-exiv2 uses the C++ exiv2 
>> library, but is incomplete (no xmp support, doesn't seem to handle multiple 
>> iptc keywords. mini-exiftool uses the excellent exiftool library, but 
>> that's written in Perl, and I'd rather use something that's either 
>> pure-ruby, or a C/C++ library for efficiency.
>> 
>> Does anyone know of any mature image metadata manipulation libraries that 
>> I've missed?
>> 
>> Paul
>> 
> have a look here :
>
> http://www.ruby-forum.com/topic/70422
>
> I'm using it even if I'm a beginner:-) pm
>

EXIFR, which is pointed to in the above link, is EXIF only. I'm looking 
for something that does IPTC and XMP.

Paul