Get Image Dimensions Given Local File Path

Hi All,

I have an image file (.jpg) that I can open via File.open() and I am curious on the easiest way to get the dimensions of this file. I’d prefer this to be a ruby/rails way and not a javascript method. Basically, I am looking for a way to verify that when a user uploads an image file that it is not larger than x by y. I’ve been looking around the web and I’m having trouble finding a way to do this. Also, if there is a way to just resize any image over some pre-defined size that would work as well.

Thanks in advance,
Ryan

Look at:

http://www.simplesystems.org/RMagick/doc/comtasks.html

Ryan Prins wrote:

try FlexImage http://beautifulpixel.com/flex_image/index.html

It allows you to crop, resize, etc. checkout the RDoc link above, and
see if that will work for you.

Matt

There are RoR plugins that allow you to resize and validate image
uploads. Try the file_column plugin:

http://www.kanthak.net/opensource/file_column/