On Wed, 15 Apr 2009, Eric Hodel wrote:

> On Apr 14, 2009, at 07:32, Paul Archer wrote:
>> I would like to use the exiftool library for exif/iptc/xmp image metadata 
>> manipulation, but it's written in Perl. Since it seems somehow wrong and 
>> definitely inefficient, I was wondering if there was any sort of perl2ruby 
>> convertor, or if there was an inline::perl module that could at least take 
>> the Perl and compile it to bytecode.
>
> None of these are suitable?
>
> $ gem search -r exif
>
> *** REMOTE GEMS ***
>
> exifr (0.10.8)
> extexif (1.0.1)

Both are exif-only. EXIF is the metadata the camera writes. It is 
writable/modify-able, but mostly to add gps info, or correct dates.
IPTC and XMP have fields to add much richer metadata: caption, 
description, keywords, etc.

> mini_exiftool (1.0.1)
> multi_exiftool (0.0.1)
>
Both are interfaces to the Perl based exiftool mentioned above.

Paul