send_image_date_to_serialport

require 'opencv'
require 'serialport'

window = OpenCV::GUI::Window.new "Camera"
capture = OpenCV::CvCapture.open

window2 = OpenCV::GUI::Window.new "LED"


width = 2880/10
height = 1800/ 10

# シリアルポート利用準備
@serial_port = "/dev/cu.usbmodem1421" #シリアルのポートを指定。OSによって違うので確認のこと。
@serial_bps = 9600

sp = SerialPort.new(@serial_port,@serial_bps)



#
# 映像を左右の領域に分けて、各領域の色を全部足していく
#
def get_new_pixel(pixel, col, width, new_pixels)

  # right
  target = new_pixels[:right]
  if col > (width/2)
    # left
    target = new_pixels[:left]
  end

  (0..2).each do |num|
    target[num] += pixel[num]
  end

  new_pixels

  
end



loop do

  #
  # 左右の画像の色ごとの合算値を入れる変数
  #

  new_pixels = {
      right: [
          0,
          0,
          0
      ],
      left: [
          0,
          0,
          0
      ]
  }

  #
  # 元画像の表示と各ピクセルの保存
  #

  image = capture.query
  image = image.resize OpenCV::CvSize.new width, height # 元画像

  image2 = OpenCV::IplImage.new width, height # LED模擬

  row_num = image.rows
  col_num = image.cols

  (0..(row_num-1)).each do |row|
    (0..(col_num-1)).each do |col|

      pixel = image.at(row, col)

      new_pixel = get_new_pixel(pixel, col, width, new_pixels)

    end
  end

  window.show image

  #
  # 劣化後の画面を表示
  #
  scalars = {
      left: nil,
      right: nil
  }

  colors = {
      left: nil,
      right: nil,
  }


  [:left, :right].each do |left_or_right|
    new_pixel = [0, 0, 0]
    target = new_pixels[left_or_right]
    if target[0] > target[1] and target[0] > target[2]
      new_pixel = [255, 0, 0]
      colors[left_or_right] = :blue
    end
    if target[1] > target[0] and target[1] > target[2]
      new_pixel = [0, 255, 0]
      colors[left_or_right] = :green
    end
    if target[2] > target[0] and target[2] > target[1]
      new_pixel = [0, 0, 255]
      colors[left_or_right] = :red
    end

    scalars[left_or_right] = OpenCV::CvScalar.new(new_pixel[0], new_pixel[1], new_pixel[2])
  end


  (0..(row_num-1)).each do |row|
    (0..(col_num-1)).each do |col|

      target = :right
      if col > (width/2)
        # left
        target = :left
      end


      num = (row )*width+col
      image2[num] = scalars[target]

    end
  end

  window2.show image2

  #
  # LEDを光らせる
  #

  led_code = {
      right:{
        red:1,
        green:2,
        blue:3,
      },
      left: {
          red:4,
          green:5,
          blue:6,
      }
  }



  number = 999
  [:left, :right].each do |left_or_right|
    number = led_code[left_or_right][colors[left_or_right]]
    sp.write(number) #serialへの書き込み 数字+数字以外
    sp.write("¥")
  end

  break if OpenCV::GUI::wait_key(100)
end