From: Michael Neumann <mneumann@...>
Date: 2004-04-29T01:52:05+09:00
Subject: Re: Modifying metadata in an image file ...

On Wed, Apr 28, 2004 at 07:11:34PM +0900, Dick Davies wrote:
> * Michael Neumann <mneumann@ntecs.de> [0405 22:05]:
> > [...]
> > But it shouldn't be that hard to write a method whose only purpose is to
> > modify the text information. But I am not familiar with the JPEG and GIF
> > data format and don't have the time to investigate.
> 
> Does the OP mean EXIF data - I think that's what the JPEG metadata is 
> held as? 
> 
> There's a libexif C library- maybe try hooking ruby/dl up to it?
> (I discovered ruby-dl last week and am bowled over at how useful it is
> to folks like me who are allergic to raw C code).

And there's ruby-libexif :-)

http://tam.0xfa.com/ruby-libexif/

Regards,

  Michael