image_size – measure image size(GIF, PNG, JPEG ,,, etc)¶ ↑

measure image (GIF, PNG, JPEG ,,, etc) size code by Pure Ruby

“PCX”, “PSD”, “XPM”, “TIFF”, “XBM”, “PGM”, “PBM”, “PPM”, “BMP”, “JPEG”, “PNG”, “GIF”, “SWF”

Download¶ ↑

The latest version of image_size can be found at

• rubyforge.org/frs/?group_id=3460

Installation¶ ↑

Normal Installation¶ ↑

You can install image_size with the following command.

% ruby setup.rb

from its distribution directory.

GEM Installation¶ ↑

Download and install image_size with the following.

gem install imagesize

image_size References¶ ↑

• image_size Project Page: rubyforge.org/projects/imagesize

• image_size API Documents: imagesize.rubyforge.org

Simple Example¶ ↑

ruby "rubygems" # you use rubygems
ruby "image_size"
ruby "open-uri"
open("http://www.rubycgi.org/image/ruby_gtk_book_title.jpg", "rb") do |fh|
  p ImageSize.new(fh.read).get_size
end

Licence¶ ↑

This code is free to use under the terms of the Ruby’s licence.

Contact¶ ↑

Comments are welcome. Send an email to “Keisuke Minami”:keisuke@rccn.com