Class: MagickCam

Inherits:
Object
  • Object
show all
Defined in:
lib/magickcam.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ MagickCam

Returns a new instance of MagickCam.



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# File 'lib/magickcam.rb', line 182

def initialize()
  @capture = Webcam.new 
end

Instance Method Details

#snapshot(filename = 'webcam.jpg') ⇒ Object 



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# File 'lib/magickcam.rb', line 186

def snapshot(filename='webcam.jpg')

  image = @capture.grab 
  width, height = image.size[:width], image.size[:height]
  img = Magick::Image.new width, height
  image.data.unpack("C*").each_slice(3).each_slice(width).with_index do |r, i|
    q = r.map {|b, g, r| Magick::Pixel.new r * 256, g * 256, b * 256, 0}
    img.store_pixels(0, i, width, 1, q)
  end
  img.format = 'jpg'
  puts 'saving ' + filename
  img.write filename
end