mirror of
https://github.com/ruby-opencv/ruby-opencv
synced 2023-03-27 23:22:12 -04:00
92 lines
2.1 KiB
Text
92 lines
2.1 KiB
Text
= opencv
|
|
|
|
The initial Open Computer Vision library was originally developed by Intel
|
|
Corporation. Recent development has been headed by Willow Garage, Inc.
|
|
|
|
Current OpenCV Sourceforge Project
|
|
http://opencv.willowgarage.com/wiki/
|
|
|
|
Earlier OpenCV Sourceforge Project
|
|
http://sourceforge.net/projects/opencvlibrary/
|
|
|
|
Ruby/OpenCV Author's Web Page
|
|
http://blueruby.mydns.jp/opencv
|
|
|
|
== DESCRIPTION:
|
|
|
|
OpenCV Ruby Wrapper
|
|
|
|
== FEATURES/PROBLEMS:
|
|
|
|
* First release rubygems, Some OpenCV functions wrapped.
|
|
* Mouse interaction often causes segfaults on my Ubuntu 10.10 (Ruby 1.9.2).
|
|
|
|
== DEPENDENCIES:
|
|
|
|
This gem relies on the OpenCV project. There are a number of ways to install
|
|
the library. Building the latest from source is preferred on OSX:
|
|
|
|
http://opencv.willowgarage.com/wiki/Mac_OS_X_OpenCV_Port
|
|
|
|
This also contains the data for the default cascades.
|
|
|
|
== INSTALLATION:
|
|
|
|
You can install by cloning this repository:
|
|
|
|
git clone git://github.com/ser1zw/ruby-opencv.git
|
|
|
|
Then inside the ruby-opencv folder run:
|
|
|
|
ruby ext/extconf.rb
|
|
make
|
|
sudo make install
|
|
|
|
== 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
|
|
|
|
== 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])
|
|
|
|
== REQUIREMENTS:
|
|
|
|
* OpenCV 2.2
|
|
http://opencv.willowgarage.com/wiki/
|
|
* ffcall (optional)
|
|
http://www.haible.de/bruno/packages-ffcall.html
|
|
|
|
== LICENSE:
|
|
|
|
The BSD Liscense
|
|
|
|
see LICENSE.txt
|