Module: Credo::Detector

Defined in:
lib/credo/detector.rb,
lib/credo/detector/version.rb

Defined Under Namespace

Classes: Error

Constant Summary collapse

VERSION = 
"0.1.1"

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Attribute Details

#last_ping ⇒ Object (readonly)

Returns the value of attribute last_ping.



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# File 'lib/credo/detector.rb', line 8

def last_ping
  @last_ping
end

#threshold ⇒ Object (readonly)

Returns the value of attribute threshold.



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# File 'lib/credo/detector.rb', line 8

def threshold
  @threshold
end

Class Method Details

.detect(device_id: 0, threshold: 60) ⇒ Object 



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# File 'lib/credo/detector.rb', line 12

def self.detect(device_id: 0, threshold: 60)
  @last_ping = linux_time
  @last_detection_time = 0

  Framegrabber.open(device_id)

  sample_number = sample_save = 0
  print("Start sampling...")
  sleep(2)
  loop do
    time_dat = DateTime.now.strftime("%Y-%m-%d %H:%M:%S:%f")
    detection_time = linux_time
    sample_number += 1
    grab_frame!
    print("\r Sample: #{sample_number} | Saved #{sample_save} | Press Ctrl + c to exit")
    sleep(0.000001)

    counter = 0
    xy_coordinates = []

    flattened = @frame.flatten
    coords = []
    if flattened.any? { |subpixel| subpixel > threshold }
      @frame.each_with_index do |row, x|
        row.each_with_index do |pixel, y|
          coords << [x, y] if pixel.any? { |subpixel| subpixel > threshold }
        end
      end
    end
  end
ensure
  Framegrabber.release
end