Class: Artoo::Drivers::Opencv
- Inherits:
-
Driver
- Object
- Driver
- Artoo::Drivers::Opencv
- Defined in:
- lib/artoo/drivers/opencv.rb
Overview
The opencv driver behaviors
Instance Attribute Summary collapse
-
#image ⇒ Object
Returns the value of attribute image.
Instance Method Summary collapse
- #detect_circles(lower, upper) ⇒ Object
- #detect_faces(haar) ⇒ Object
- #draw_circles!(circles = []) ⇒ Object
- #draw_rectangles!(rectangles = []) ⇒ Object
-
#initialize(image) ⇒ Opencv
constructor
A new instance of Opencv.
- #refresh ⇒ Object
Constructor Details
#initialize(image) ⇒ Opencv
Returns a new instance of Opencv.
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# File 'lib/artoo/drivers/opencv.rb', line 9 def initialize image @image = image end |
Instance Attribute Details
#image ⇒ Object
Returns the value of attribute image.
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# File 'lib/artoo/drivers/opencv.rb', line 7 def image @image end |
Instance Method Details
#detect_circles(lower, upper) ⇒ Object
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# File 'lib/artoo/drivers/opencv.rb', line 13 def detect_circles(lower, upper) tmp_image = ::OpenCV::BGR2HSV(@image) tmp_image = tmp_image.in_range(::OpenCV::CvScalar.new(lower[:b], lower[:g], lower[:r]), ::OpenCV::CvScalar.new(upper[:b], upper[:g], upper[:r])) return tmp_image.hough_circles(::OpenCV::CV_HOUGH_GRADIENT, 2.0, 10, 200, 50) end |
#detect_faces(haar) ⇒ Object
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# File 'lib/artoo/drivers/opencv.rb', line 25 def detect_faces(haar) ::OpenCV::CvHaarClassifierCascade::load(haar).detect_objects(@image) end |
#draw_circles!(circles = []) ⇒ Object
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# File 'lib/artoo/drivers/opencv.rb', line 19 def draw_circles!(circles=[]) circles.each do |circle| @image.circle! circle.center, circle.radius, :color => ::OpenCV::CvColor::Red, :thickness => 3 end end |
#draw_rectangles!(rectangles = []) ⇒ Object
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# File 'lib/artoo/drivers/opencv.rb', line 29 def draw_rectangles!(rectangles=[]) rectangles.each { |rect| @image.rectangle! rect.top_left, rect.bottom_right, :color => ::OpenCV::CvColor::Red, :thickness => 3 } end |
#refresh ⇒ Object
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# File 'lib/artoo/drivers/opencv.rb', line 35 def refresh connection.connect end |