Class: PhotoUtils::Tools::Blur

Inherits:
PhotoUtils::Tool show all
Defined in:
lib/photo_utils/tools/blur.rb

Instance Method Summary collapse

Methods inherited from PhotoUtils::Tool

#description, #initialize, #name, #usage

Constructor Details

This class inherits a constructor from PhotoUtils::Tool

Instance Method Details

#run ⇒ Object 



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# File 'lib/photo_utils/tools/blur.rb', line 9

def run
  scene = Scene.new
  scene.sensitivity = 100
  scene.subject_distance = 6.feet
  scene.background_distance = 7.feet
  flash_lux = 25
  flash_seconds = 0.001
  # flash_lux_seconds = flash_lux.to_f * (flash_seconds * 1000)
  flash_lux_seconds = 25000 / 2
  scene.brightness = PhotoUtils::Brightness.new_from_cdm2(flash_lux_seconds.to_f / ((scene.subject_distance / 1000) ** 2))
  scene.camera = Camera[/Eastman/]
  # scene.camera.lens = scene.camera.lenses.find { |l| l.focal_length == 12.inches }
  scene.camera.lens.aperture = 32
  scene.camera.shutter = nil

  scene.print_camera
  scene.print_exposure
  scene.print_depth_of_field

  1.feet.step(scene.subject_distance * 2, 1.feet).map { |d| Length.new(d) }.each do |d|
    blur = scene.blur_at_distance(d)
    puts "%12s: blur disk: %7s, blur/CoC: %6d%% -- %s" % [
      d.to_s(:imperial),
      blur.to_s(:metric),
      (blur / scene.circle_of_confusion) * 100,
      blur <= scene.circle_of_confusion ? 'in focus' : 'out of focus'
    ]
  end
end