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** THIS GEM/REPO IS NO LONGER MAINTAINED **The last release of the ‘opencv` gem was on July 25th, 2009: rubygems.org/gems/opencv/versions/0.0.7
Please use an alternative OpenCV wrapper, such as ‘ruby-opencv`: github.com/ruby-opencv/ruby-opencv/
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OpenCVThe initial Open Computer Vision library was originally developed by Intel Corporation. Recent development has been headed by Willow Garage, Inc.
OpenCV Sourceforge Project opencv.willowgarage.com/wiki/
Sourceforge sourceforge.net/projects/opencvlibrary/
Ruby/OpenCV Author’s Web Page blueruby.mydns.jp/opencv
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DESCRIPTION:OpenCV Ruby Wrapper
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FEATURES/PROBLEMS:-
First release rubygems, Some OpenCV functions wrapped.
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Ruby 1.8.7, 1.9.2 and OpenCV 2.2 are supported.
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Mouse interaction often causes segfaults on my Ubuntu 10.10 (Ruby 1.9.2).
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DEPENDENCIES:This library relies on the OpenCV project. The following page shows how to install it:
opencv.willowgarage.com/wiki/InstallGuide
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INSTALLATION:You can install by cloning this repository:
git clone git://github.com/ser1zw/ruby-opencv.git
Then inside the ruby-opencv folder run:
rake install_gem
You can also add ruby-opencv in your Gemfile:
echo -e "\n"'gem "opencv", :git => "https://github.com/pcting/ruby-opencv"' >> Gemfile bundle install # or bundle update
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SYNOPSIS:Once installed it is possible to show images via GUI Window.
require "opencv" image = OpenCV::IplImage.load("sample.jpg") window = OpenCV::GUI::Window.new("preview") window.show(image) OpenCV::GUI::wait_key
For more samples, see examples/*.rb
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FACE DETECTION:Here is a sample face detection program that doesn’t rely on the GUI components. In order for this to work you must copy the OpenCV haarcascades data into a subfolder called data.
#!/usr/bin/env ruby require "opencv" if ARGV.length < 2 puts "Usage: your_app_name source dest" exit end data = "./data/haarcascades/haarcascade_frontalface_alt.xml" detector = OpenCV::CvHaarClassifierCascade::load(data) image = OpenCV::IplImage.load(ARGV[0]) detector.detect_objects(image) do |region| color = OpenCV::CvColor::Blue image.rectangle! region.top_left, region.bottom_right, :color => color end image.save_image(ARGV[1])
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REQUIREMENTS:-
OpenCV 2.2 or later opencv.willowgarage.com/wiki/
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ffcall (optional) www.haible.de/bruno/packages-ffcall.html
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LICENSE:The BSD Liscense
see LICENSE.txt