mirror of
https://github.com/ruby-opencv/ruby-opencv
synced 2023-03-27 23:22:12 -04:00
94 lines
2.1 KiB
Text
94 lines
2.1 KiB
Text
= opencv
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The initial Open Computer Vision library was originally developed by Intel
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Corporation. Recent development has been headed by Willow Garage, Inc.
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Current OpenCV Sourceforge Project
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http://opencv.willowgarage.com/wiki/
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Earlier OpenCV Sourceforge Project
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http://sourceforge.net/projects/opencvlibrary/
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Ruby/OpenCV Author's Web Page
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http://blueruby.mydns.jp/opencv
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== DESCRIPTION:
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OpenCV Ruby Wrapper
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== FEATURES/PROBLEMS:
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* First release rubygems, Some OpenCV functions wrapped.
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== DEPENDENCIES:
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This gem relies on the OpenCV project. There are a number of ways to install
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the library. Building the latest from source is preferred on OSX:
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http://opencv.willowgarage.com/wiki/Mac_OS_X_OpenCV_Port
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This also contains the data for the default cascades.
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== INSTALLATION:
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You can install by cloning this repository:
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git clone git://github.com/jeffrafter/ruby-opencv.git
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Then inside the ruby-opencv folder run:
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ruby ext/extconf.rb
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make
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sudo make install
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== SYNOPSIS:
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Once installed it is possible to show images via GUI Window.
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require "rubygems"
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gem "opencv"
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require "opencv"
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image = OpenCV::IplImage.load("sample.jpg")
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window = OpenCV::GUI::Window.new("preview")
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window.show(image)
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OpenCV::GUI::wait_key
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For more samples, see examples/*.rb
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== FACE DETECTION:
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Here is a sample face detection program that doesn't rely on the GUI components.
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In order for this to work you must copy the OpenCV haarcascades data into a
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subfolder called data.
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#!/usr/bin/env ruby
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require "rubygems"
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require "opencv"
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if ARGV.length < 2
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puts "Usage: your_app_name source dest"
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exit
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end
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data = "./data/haarcascades/haarcascade_frontalface_alt.xml"
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detector = OpenCV::CvHaarClassifierCascade::load(data)
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image = OpenCV::IplImage.load(ARGV[0])
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detector.detect_objects(image) do |region|
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color = OpenCV::CvColor::Blue
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image.rectangle! region.top_left, region.bottom_right, :color => color
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end
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image.save_image(ARGV[1])
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== REQUIREMENTS:
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* OpenCV 2.0 or later.
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http://opencv.willowgarage.com/wiki/
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* ffcall (optional)
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http://www.haible.de/bruno/packages-ffcall.html
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== LICENSE:
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The BSD Liscense
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see LICENSE.txt
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