Sage is an OpenGL extension library written to make use of SDL's mechanism for
enabling OpenGL's extensions.
ImageScience is a Ruby library that generates
thumbnails. Supports square and proportional
thumbnails, as well as arbitrary resizes.
This gem allows you to find the size of an image
using Ruby.
Manipulate images with minimal use of memory via ImageMagick / GraphicsMagick
This is a simple library for detecting objects in pictures.
An OpenGL wrapper for Ruby. ruby-opengl contains bindings for OpenGL and the
GLU and GLUT libraries.
An icon collection for the scwm window manager.
Uses wkhtmltopdf to create PDFs using HTML
PNG is an almost-pure-ruby PNG library. It lets you write a PNG without any C
libraries.
It's a Ruby script that loads the application classes and analyzes its
properties (attributes, methods) and relationships (inheritance, model
associations like has_many, etc.) The output is a graph description in
the DOT language, suitable to be handled with tools like Graphviz.