Class: SharpnessMeter

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

Overview

Focus Inspector - The focus inspection and lens calibration software.

Copyright © 2012 by Chris Schlaeger <[email protected]>

This program is Open Source software; you can redistribute it and/or modify it under the terms of MIT license as shipped with this software.

Instance Method Summary collapse

Constructor Details

#initialize(imageFile) ⇒ SharpnessMeter

Returns a new instance of SharpnessMeter.



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# File 'lib/focusinspector/SharpnessMeter.rb', line 13

def initialize(imageFile)
  @imageFile = imageFile
  @minSquareSize = 100
end

Instance Method Details

#measure(x, y) ⇒ Object 



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# File 'lib/focusinspector/SharpnessMeter.rb', line 18

def measure(x, y)
  image = Magick::Image.read(@imageFile).first

  x, y, sqSize = findBlackSquare(image, x, y)
  crop = cropQuadrants(image, x, y)
  #ImageViewer.new(image)
  colorHistogram = crop.color_histogram
  bwHistogram = convertHistToBW(colorHistogram)
  calcSharpness(bwHistogram, crop)
end