How to find out image width and height which is saved in database?

How to find out image width and height which is saved in database,
with out using any applications or addons Please help

How to find out image width and height which is saved in database,
with out using any applications or addons Please help

You could do what I did: http://gist.github.com/89738

Then you can do things like:

require 'image_size'

=> true

x=ImageSize.of_file('/Users/rab/Pictures/Boston_MIT_8L4L2442.jpg')

=> #<ImageSize:0x32df98 @height=678, @image=#<File:/Users/rab/Pictures/Boston_MIT_8L4L2442.jpg (closed)>, @width=1024, @jpeg_dimension_segment="\377\300\000\021\b\002\246\004\000\003\001\"\000\002\021\001\003\021\001", @header="\377\330\377\340\000\020JFIF\000\001\001\001\000`\000`\000\000\377\333\000C\000\006\004\005\006\005\004\006\006\005\006\a\a\006\b\n\020\n\n\t\t\n\024\016\017\f\020\027\024\030\030\027\024\026\026\032\035%\037\032\e#\034\026\026 , #&')*)\031\037-0-(0%()(\377\333\000C\001\a\a\a\n\b\n\023\n\n\023(\032\026\032((((((((((((((((((((((((((((((((((((((((((((((((((\377\300\000\021\b\002\246\004\000\003\001\"\000\002\021\001\003\021\001\377\304", @image_type=:jpeg>

x.width

=> 1024

x.height

=> 678

x.dimensions

=> [1024, 678]

x.size

=> "1024x678"

x.content_type

=> "image/jpeg"

Well, unless you consider that an addon, of course.

-Rob

Rob Biedenharn http://agileconsultingllc.com
Rob@AgileConsultingLLC.com