Date Photo Taken image property in Jpegs?

Ruby
1

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

2

Nic D. wrote:

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

EXIF libraries:

http://rubyforge.org/search/?type_of_search=soft&words=exif&Search=Search

–
Phillip “CynicalRyan” Gawlowski
http://cynicalryan.110mb.com/
http://clothred.rubyforge.org

Eek! That was supposed to be My Special Law, MY special law, I tell
you!

T/

3

Nic D. 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
(RMagick 1.15.0: class Image (instance methods, part 2)),
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.