Module: CVFFI::IplImageFunctions

Included in:
IplImage
Defined in:
lib/opencv-ffi-wrappers/core/iplimage.rb

Instance Method Summary collapse

Instance Method Details

#clone ⇒ Object 



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# File 'lib/opencv-ffi-wrappers/core/iplimage.rb', line 16

def clone
  CVFFI::IplImage.new CVFFI::cvCloneImage( self )
end

#ensure_greyscale ⇒ Object Also known as: ensure_grayscale 



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# File 'lib/opencv-ffi-wrappers/core/iplimage.rb', line 33

def ensure_greyscale
  return self if nChannels == 1

  greyImg = CVFFI::cvCreateImage( CVFFI::CvSize.new( { :height => height, 
                                                    :width => width }), 
                                                    :IPL_DEPTH_8U, 1 )
  CVFFI::cvCvtColor( self.to_IplImage, greyImg, :CV_BGR2GRAY )
  greyImg
end

#image_size ⇒ Object 



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# File 'lib/opencv-ffi-wrappers/core/iplimage.rb', line 8

def image_size
  Size.new( self.width, self.height )
end

#to_IplImage ⇒ Object 



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# File 'lib/opencv-ffi-wrappers/core/iplimage.rb', line 12

def to_IplImage
  self
end

#twin(*opts) ⇒ Object 



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# File 'lib/opencv-ffi-wrappers/core/iplimage.rb', line 20

def twin( *opts )
  depth,nChannels = if opts[0].is_a? Hash
                      opts = opts.pop
                      [opts[:depth], opts[:channels]]
                    else
                      opts
                    end

  depth ||= self.depth
  nChannels ||= self.nChannels
  CVFFI::IplImage.new CVFFI::cvCreateImage( self.image_size.to_CvSize, depth, nChannels )
end