From: Tim Hunter <rmagick@...>
Date: 2007-04-18T21:12:25+09:00
Subject: Re: Date Photo Taken image property in Jpegs?

Nic Daniau wrote:
> Hi,
> 
> I'm writing a utility which must be capable of processing embedded
> property values (metadata) that some digital cameras add to the Jpeg
> photos they produce, like for instance the Date Photo
> Taken, Camera Model, Focal Length, ISO Speed, Exposure Time, etc.
> These are the properties you see on Windows when you right-click >
> Properties > Summary tab > Advanced.
> 
> I'm writing it primarily for Windows, so I'm not fussy about using/
> writing a library that is platform specific. Can someone point me in
> the direction? Couldn't find anything in RMagick but I'm very new to
> the topic so I might be wrong. Thanks!
> 
> Nic

RMagick has get_exif_by_entry 
(http://www.simplesystems.org/RMagick/doc/image2.html#get_exif_by_entry), 
which will return the EXIF data from a JPEG. If getting metadata all you 
want to do then the miniexiftool library 
(http://rubyforge.org/projects/miniexiftool/) might be a better choice.


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