Module: Huespace

Defined in:
lib/huespace.rb,
lib/huespace/median_cut.rb

Defined Under Namespace

Classes: MedianCut

Class Method Summary collapse

Class Method Details

.get_dominant_color(image_source) ⇒ Object

Returns the dominant color



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# File 'lib/huespace.rb', line 27

def Huespace.get_dominant_color(image_source)
  colors = Huespace.get_palette(image_source, 5)

  return colors[0]
end

.get_most_colorful_color(image_source) ⇒ Object

Returns most colorful color This is achieved by sorting the palette using the following formula: (max + min) * (max - min)) / max max and min represent one of the rgb values More about this here: changingminds.org/explanations/perception/visual/colourfulness.htm



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# File 'lib/huespace.rb', line 20

def Huespace.get_most_colorful_color(image_source)
  colors = Huespace.get_palette(image_source, 6)

  return colors.sort_by { |color| ((color.max + color.min) * (color.max - color.min)) / color.max }.last()
end

.get_palette(image_source, n_colors) ⇒ Object

Returns a palette of representative colors



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# File 'lib/huespace.rb', line 8

def Huespace.get_palette(image_source, n_colors)
  pixels = Huespace.load_image(image_source)
  
  sampled_pixels, hist = Huespace.sample_pixels(pixels)
  Huespace::MedianCut.process(sampled_pixels, n_colors, hist)
end