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| − | [[Image:Hornetseye.png|thumb|320px|right|Logo of Hornetseye-library showing a hornet]] | + | {|align="right" |
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| | + | |[[Image:AVA-Bristol-2008.jpg|thumb|240px|[http://vision.eng.shu.ac.uk/jan/ava-bristol-2008.pdf Poster] for the 2008 [http://hlsweb.dmu.ac.uk/ava/meetings/bristol2008.html AVA meeting] in Bristol]] |
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| | + | |[[Image:Oscon08foils.jpg|240px|thumb|Conference presentation [http://vision.eng.shu.ac.uk/jan/oscon08-foils.pdf Real-time Computer Vision With Ruby] presented at [http://en.oreilly.com/oscon2008/ OSCON 2008]]] |
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| | + | |} |
| | =Introduction= | | =Introduction= |
| − | '''[http://www.wedesoft.demon.co.uk/hornetseye-api/ HornetsEye]''' is a [http://www.rubyist.net/~nobu/ruby/Ruby_Extension_Manual.html Ruby-extension] for real-time computer vision under GNU/Linux offering interfaces to do image- and video-I/O with [http://rmagick.rubyforge.org/ RMagick], [http://www.xinehq.de/ Xine], firewire digital camera ([http://damien.douxchamps.net/ieee1394/libdc1394/ DC1394]) and video for Linux ([http://www.exploits.org/v4l/ V4L]). | + | '''[http://www.wedesoft.demon.co.uk/hornetseye-api/ 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. |
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| − | '''[http://www.wedesoft.demon.co.uk/hornetseye-api/ HornetsEye]''' also is an attempt to use the Mimas library and create a ''minimalistic'' and ''consistent'' real-time computer vision library.
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| − | * '''minimalistic''': The library is focused on real-time computer vision. Existing libraries are being made used of.
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| − | * '''consistent''':: A non-redundant set of data-types is used. Also the library tries to stay consistent with existing libraries.
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| − | The logo was created using [http://gimp.org/ GIMP] and it is based on a nice photo published by [http://www.flickr.com/photos/olivander Olivander]. A hornet is capable of navigating and detecting objects with the limited resolution of its [http://en.wikipedia.org/wiki/Compound_eye compound eyes].
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| − | =Simple Webcam Application=
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| − | [[Image:Rubywebcam.jpg|thumb|320px|right|Screenshot of webcam application written in Ruby]]
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| − | <pre>
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| − | #!/usr/bin/ruby
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| − | require 'hornetseye'
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| − | require 'Qt'
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| − | app=Qt::Application.new(ARGV)
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| − | class VideoWidget < Qt::Label
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| − | def initialize( parent = nil )
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| − | super
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| − | @input = Hornetseye::V4LInput.new
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| − | startTimer( 0 )
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| − | end
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| − | def timerEvent( e )
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| − | str = @input.read.to_magick.to_blob { self.format = "PPM"; self.depth = 8 }
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| − | pix = Qt::Pixmap.new
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| − | pix.loadFromData( Qt::ByteArray.fromRawData( str, str.size ) )
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| − | setPixmap( pix )
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| − | resize( pix.width, pix.height )
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| − | update
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| − | end
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| − | end
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| − | win = VideoWidget.new
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| − | win.show
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| − | app.exec
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| − | </pre>
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| − | The webcam application uses [[Hornetseye|HornetsEye]], [http://rubyforge.org/projects/rmagick/ RMagick], and [http://rubyforge.org/projects/korundum/ qt4-ruby].
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| − | To install [http://rubyforge.org/frs/shownotes.php?release_id=7630 qt4-qtruby-1.4.7] I had to [http://rubyforge.org/forum/message.php?msg_id=19132 change the script ./smoke/qt/qtguess.pl.in]. Otherwise on gets an error message like this:
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| − | problem with QListWidget missing parent at ../../kalyptus/kalyptusCxxToSmoke.pm line 2207.
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| − | Also [http://rubyforge.org/frs/shownotes.php?release_id=7630 qt4-qtruby-1.4.7] seems to have a [http://rubyforge.org/forum/message.php?msg_id=19077 memory leak in Qt::ByteArray]. Thanks to [http://rubyforge.org/users/rdale/ Richard Dale] the problem was solved and the bugfix will be included in the next release of qt4-qtruby. The modified code already is [http://websvn.kde.org/trunk/KDE/kdebindings/qtruby/ available via the KDE source repository].
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| − | See [http://www.wedesoft.demon.co.uk/hornetseye-api/files/inputgrey-txt.html Hornetseye homepage] for more examples.
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| − | =Downloads=
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| − | ==Hornetseye-0.13==
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| − | * [[Image:Hornetseye.jpg|48px]] '''Download [http://rubyforge.org/frs/?group_id=2714 HornetsEye-0.13] released on April 5th 2007'''
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| − | ===Release Notes===
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| − | See [http://www.wedesoft.demon.co.uk/hornetseye-api/ HornetsEye homepage] for installation instructions.
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| − | | + | |
| − | ===Change log===
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| − | * Porting documentation from RDoc to NaturalDocs.
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| − | * hornetseye/io/openglimagepainter.cc: Not including GL/glext.h any more because it leads to problems on some NVidia installations.
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| − | * Added methods to unmap and map X11-windows.
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| − | * Bug! Dimensions of NArray were swapped. All conversion to and from Hornetseye::Image as well as the filters had to be fixed.
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| − | ==HornetsEye-0.12==
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| − | * [[Image:Hornetseye.jpg|48px]] '''Download [http://rubyforge.org/frs/?group_id=2714 HornetsEye-0.12] released on March 20th 2007'''
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| − | ===Release Notes===
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| − | See [http://www.wedesoft.demon.co.uk/hornetseye-api/ HornetsEye homepage] for installation instructions.
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| − | ===Change log===
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| − | * Added OpenGLOutput and XVideoOutput for displaying images and videos. Added corresponding examples in directory ''./samples/display''.
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| − | ==HornetsEye-0.11==
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| − | * [[Image:Hornetseye.jpg|48px]] '''Download [http://rubyforge.org/frs/?group_id=2714 HornetsEye-0.11] released on March 11th 2007'''
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| − | ===Release Notes===
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| − | See [http://www.wedesoft.demon.co.uk/hornetseye-api/ HornetsEye homepage] for installation instructions.
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| − | ===Change log===
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| − | * hornetseye/io/dc1394input.cc: Do not prefer RGB24 in mode selection.
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| − | * hornetseye/io/v4linput.cc: Do not prefer RGB24 in mode selection, because it is very slow. Fixed bug in colourspace selection code. Improved speed by implementing background capture.
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| − | * Now also links with versions of libdc1394 older than 1.1
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| − | ==HornetsEye-0.10==
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| − | * [[Image:Hornetseye.jpg|48px]] '''Download [http://rubyforge.org/frs/?group_id=2714 HornetsEye-0.10] released on February 1st 2007'''
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| − | ===Release Notes===
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| − | See [http://www.wedesoft.demon.co.uk/hornetseye-api/ HornetsEye homepage] for installation instructions.
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| − | | + | |
| − | ===Change log===
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| − | * Made display method accept more element-types.
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| − | * Normalisation also works on blank image.
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| − | ==Older releases==
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| − | See [http://rubyforge.org/frs/?group_id=2714 Hornetseye page at Rubyforge] for older releases.
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| | =See Also= | | =See Also= |
| − | * [[Mimas]] | + | * [[Interactive Presentation Software]] |
| | + | * [[Just-in-time compiler]] |
| | + | * [[Lucas-Kanade tracker]] |
| | + | * [[Hypercomplex Wavelets]] |
| | + | * [[Qt4-QtRuby installer for Microsoft Windows]] |
| | + | * [[TEM vision software]] |
| | + | * [[Image:Mimasanim.gif|40px]] [[Mimas]] |
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| | =External Links= | | =External Links= |
| − | * [http://www.wedesoft.demon.co.uk/hornetseye-api/ Hornetseye homepage] | + | * [[Image:Hornetseye.png|48px]] [http://www.wedesoft.demon.co.uk/hornetseye-api/ HornetsEye homepage] |
| − | * [[Image:Rubyforge.png|75px]] [http://rubyforge.org/projects/hornetseye/ Hornetseye at Rubyforge] | + | * [[Image:Rubyforge.png|75px]] [http://rubyforge.org/projects/hornetseye/ HornetsEye at Rubyforge] |
| − | * [[Image:Ruby.png|25px]] [http://www.ruby-lang.org/ Ruby] programming language | + | * [[Image:Sourceforge.png|58px]] [http://sourceforge.net/projects/hornetseye/ HornetsEye at Sourceforge] |
| − | * [http://rubyforge.org/projects/korundum/ QtRuby], [http://developer.kde.org/language-bindings/ruby/ Korundum] | + | * [[Image:Swig.png|48px]] [http://www.swig.org/ SWIG] (Simplified Wrapper and Interface Generator) |
| − | * [http://www.swig.org/ SWIG] (Simplified Wrapper and Interface Generator)
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| − | * [http://www.csie.ntnu.edu.tw/~bbailey/Moments%20in%20IP.htm Moments in image processing]
| + | {{AddThis}} |
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| | [[Category:Projects]] | | [[Category:Projects]] |
| | [[Category:Nanorobotics]] | | [[Category:Nanorobotics]] |
Mimas
HornetsEye homepage
HornetsEye at Rubyforge
HornetsEye at Sourceforge
SWIG (Simplified Wrapper and Interface Generator)
