flex.rb is a regexp matching and scanning library for the Ruby language. It is more than 3 times faster than Ruby regexps, and supports matching text arriving in multiple parts (via async, non-blocking I/O). flex.rb embeds the GNU Flex 2.5.4 (fast lexical analyzer generator) as an engine, and all of Flex's functionality is accessible from Ruby scripts.
GridFlow is a plugin for PureData, Ruby, and jMax. It provides the ability to process images and video as N-dimensional arrays ("Grids"). It consists of a framework for grid transmissions, elementary grid processing objects, picture-oriented processing objects, and input/output objects. It also allows one to write plugins for PureData and jMax using the Ruby language.
GImageView is a GTK+ based image viewer. It supports tabbed browsing, thumbnail table views, directory tree views, drag and drop, reading the thumbnail cache of other famous image viewers, and a flexible user interface. It also support movies using the Xine library and MPlayer, and supports images in compressed archive formats like tar.gz, zip, and lha.
FusionCharts is a Flash charting component that can be used to render data-driven and animated charts in your Web and dekstop applications and presentations. FusionCharts is a cross-browser and cross-platform and can be used with any scripting language and database. It is used with ASP.NET, ASP, PHP, JSP, ColdFusion, Ruby on Rails, Python, simple HTML pages, or even PowerPoint presentations. You do not need to know anything about Flash to use FusionCharts. All you need to know is the language you're programming in. FusionCharts offers over 45 types of 2D and 3D charts.