HornetsEye

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=External Links=
 
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Revision as of 12:37, 13 October 2008

File:Hello.png
Developing algorithms with HornetsEye and KDevelop
Conference presentation Real-time Computer Vision With Ruby presented at OSCON 2008
File:Rubywebcam2.jpg
Screenshot of Linux webcam application written in Ruby
A naive object recognition algorithm using colour segmentation (video also available as 8.6 MByte DivX video or on Google Video)

Contents

Introduction

HornetsEye is a Ruby-extension for developing video processing and real-time computer vision software under GNU/Linux offering interfaces to do image- and video-I/O with RMagick, Xine, firewire digital camera, and video for Linux. A new class of unprecedented solutions and a new way of working becomes conceivable when applying a dynamically typed, object-oriented language like Ruby to computer vision.

After installation you can use HornetsEye without having to compile or link anything! You can even develop computer vision algorithms on the command-line using Interactive Ruby (irb). HornetsEye offers image file-I/O, video input, access to webcams and framegrabbers, access to firewire digital cameras, edge detection, corner detection, user-defined filters. It thightly integrates with existing Ruby extensions.

HornetsEye is maybe the first free software project providing a solid platform for implementing real-time computer vision software in a scripting language. The platform potentially could be used in robotic applications, industrial automation as well as in microscopy and the life sciences.

The logo was created using GIMP and it shows a honeycomb structure as you would find on an insect's compound eye. A hornet is capable of navigating and detecting objects with the limited resolution of its compound eyes.

Download

Hornetseye.png Check the installation instructions on how to obtain and install HornetsEye.

Software Engineering

HornetsEye brings the functionality of existing powerful free software packages into Ruby. HornetsEye also tries to make existing Ruby extension operate with each other to enable the development of novel solutions:

  1. Qt4.png Qt4-QtRuby, Kde.png Korundum: QtRuby and Korundum can be used to develop graphical user interfaces and desktop applications with Qt4.
  2. Xine logo.png Xine: Using Xine one can read virtually any video file and it is even possible to read streaming videos.
  3. Mplayerlogo.png MPlayer: MPlayer is a player which can be used to read video files under GNU/Linux as well as Microsoft Windows.
  4. Tanaka.png NArray: Masahiro Tanaka's NArray is an implementation of n-dimensional arrays for Ruby.
  5. Fftw logo.gif FFTW. The fftw-library can is maybe the fastest library for performing discrete Fourier transforms. It can be invoked by using Masahiro Tanaka's fftw3 extension.
  6. RMagick.png RMagick: The RMagick Ruby-extension allows to use the powerful Magick++ library in Ruby for loading and saving images.
  7. Coriander.png libdc1394: Using libdc1394 one can make use of a large choice of firewire digital cameras.
  8. OpenEXR.jpg OpenEXR: The OpenEXR library is used for saving and loading high dynamic range images.
  9. C--boost logo.gif Boost: The Boost Library offers smart pointers to do exception safe programming, multi-dimensional arrays, template meta-programming, abstract data types for linear algebra and many other programming concepts. The Boost library is going to be part of a future C++ standard.
  10. Stl logo.gif STL: The software makes use of the Standard Template Library
  11. Ruby.png Ruby programming language
  12. Gnu-arch logo.png gnu-arch: gnu-arch is being used for version control.
  13. Gcc logo.png Gcc: gcc is the C++ compiler of the GNU project.
  14. Gnu-head.jpg autoconf, automake and make: make, autoconf and automake are used to configure and perform the build of the software on GNU/Linux as well as Microsoft Windows.
  15. Naturaldocs.png Natural Docs: Natural Docs is used to create the HTML documentation.

See Also

External Links

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