CapIt provides a simple Ruby interface to Björn Höhrmann's CutyCapt

Install CutyCapt

OSX (via Homebrew)

brew install cuty_capt

Ubuntu >= 11.04 & Debian >= 6.0

sudo apt-get install xvfb
sudo apt-get install cutycapt

Other Ubuntu/Debian

(from Setting up Headless XServer and CutyCapt on Ubuntu)

sudo apt-get install xvfb
sudo apt-get install xfs xfonts-scalable xfonts-100dpi
sudo apt-get install libgl1-mesa-dri
sudo apt-get install subversion libqt4-webkit libqt4-dev g++
svn co
cd cutycapt/CutyCapt

You'll also need to make sure the CutyCapt executable is in your PATH.

Install CapIt

gem install capit


require 'capit'
capit = CapIt::Capture("")
# You can also set CutyCapt's path manually if necessary.
capit = CapIt::Capture("", :cutycapt_path => "/sbin/CutyCapt")