# Extracting image data

**URL:** <https://www.ruby-forum.com/t/extracting-image-data/134240>\
**Category:** Rails\
**Created:** [April 9, 2008, 8:03am UTC](https://www.ruby-forum.com/t/extracting-image-data/134240 "2008-04-09T08:03:28Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![jfaulkenberry](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/c2a13f/32.png) [@jfaulkenberry](https://www.ruby-forum.com/u/jfaulkenberry)\
**Post date:** [April 9, 2008, 8:03am UTC](https://www.ruby-forum.com/t/extracting-image-data/134240/1 "2008-04-09T08:03:28Z")

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Hi there,

I’ve got an app that processes images, at the moment I’m using  
imagemagick to do it.

I’ve been extracting data from the images using image macgick but it’s  
really slow at doing this (width, height, file type, exif data etc)

does anyone know any good programs that I can use to extract image  
data?

Thanks,  
Jonzo.

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**Author:** ![jfaulkenberry](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/c2a13f/32.png) [@jfaulkenberry](https://www.ruby-forum.com/u/jfaulkenberry)\
**Post date:** [April 9, 2008, 11:16pm UTC](https://www.ruby-forum.com/t/extracting-image-data/134240/2 "2008-04-09T23:16:05Z")

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bump!

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**Author:** ![jfaulkenberry](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/c2a13f/32.png) [@jfaulkenberry](https://www.ruby-forum.com/u/jfaulkenberry)\
**Post date:** [April 9, 2008, 11:21pm UTC](https://www.ruby-forum.com/t/extracting-image-data/134240/3 "2008-04-09T23:21:57Z")

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On Apr 9, 2008, at 2:15 PM, Jonzo wrote:

> > it’s  
> > really slow at doing this (width, height, file type, exif data etc)
> > 
> > does anyone know any good programs that I can use to extract image  
> > data?
> > 
> > Thanks,  
> > Jonzo.

Check out these gems:

[http://gemmy.calicowebdev.com/?search\_field=exif](http://gemmy.calicowebdev.com/?search_field=exif)

I’ve used mini\_exiftool and it works great.

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**Author:** ![jfaulkenberry](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/c2a13f/32.png) [@jfaulkenberry](https://www.ruby-forum.com/u/jfaulkenberry)\
**Post date:** [April 9, 2008, 11:33pm UTC](https://www.ruby-forum.com/t/extracting-image-data/134240/4 "2008-04-09T23:33:05Z")

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hey that’s a pretty cool website! although it didn’t mention  
mini\_exiftool. Still, it’s the first gem browser I’ve seen…

On Thu, Apr 10, 2008 at 9:21 AM, s.ross [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:

> > > imagemagick to do it.
> 
> >

–  
Jonathan

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<div class="post-metadata">

**Author:** ![jfaulkenberry](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/c2a13f/32.png) [@jfaulkenberry](https://www.ruby-forum.com/u/jfaulkenberry)\
**Post date:** [April 9, 2008, 11:37pm UTC](https://www.ruby-forum.com/t/extracting-image-data/134240/5 "2008-04-09T23:37:11Z")

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How’s about _exif_ for the search?

–s

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**Author:** ![jfaulkenberry](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/c2a13f/32.png) [@jfaulkenberry](https://www.ruby-forum.com/u/jfaulkenberry)\
**Post date:** [April 10, 2008, 12:03am UTC](https://www.ruby-forum.com/t/extracting-image-data/134240/6 "2008-04-10T00:03:38Z")

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I’ve just been taking a look at exiftool and it looks awesome! thanks  
for the advice 🙂

On Thu, Apr 10, 2008 at 9:36 AM, s.ross [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:

> > hey that’s a pretty cool website! although it didn’t mention
> > 
> > > > > Hi there,

–  
Jonathan