Class: Quadtone::Tools::Separate

Inherits:
Quadtone::Tool show all
Defined in:
lib/quadtone/tools/separate.rb

Instance Attribute Summary collapse

Attributes inherited from Quadtone::Tool

#profile, #verbose

Instance Method Summary collapse

Methods inherited from Quadtone::Tool

#load_profile, #parse_global_option, process_args, #process_environment

Instance Attribute Details

#gradient ⇒ Object

Returns the value of attribute gradient.



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# File 'lib/quadtone/tools/separate.rb', line 8

def gradient
  @gradient
end

#montage ⇒ Object

Returns the value of attribute montage.



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# File 'lib/quadtone/tools/separate.rb', line 7

def montage
  @montage
end

#save_luts ⇒ Object

Returns the value of attribute save_luts.



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# File 'lib/quadtone/tools/separate.rb', line 9

def save_luts
  @save_luts
end

Instance Method Details

#parse_option(option, args) ⇒ Object 



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# File 'lib/quadtone/tools/separate.rb', line 11

def parse_option(option, args)
  case option
  when '--montage'
    @montage = true
  when '--gradient'
    @gradient = true
  when '--save-luts'
    @save_luts = true
  end
end

#run(image_file = nil) ⇒ Object 



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# File 'lib/quadtone/tools/separate.rb', line 22

def run(image_file=nil)

  if @gradient
    image_file = Path.new('gradient.tif')
    image = Magick::Image.new(200, 200, Magick::GradientFill.new(0, 0, 0, 200, 'white', 'black'))
  else
    raise ToolUsageError, "Must specify image file (or --gradient option)" unless image_file
    image_file = Path.new(image_file)
    image = Magick::Image.read(image_file.to_s).first
  end

  quad = QuadFile.new(@profile)
  separator = Separator.new(quad.curve_set)
  images = separator.separate(image)

  if @montage
    image_list = Magick::ImageList.new
    image_copy = image.copy
    image_copy['Label'] = 'original'
    image_list << image_copy
    image_list += images.values
    separated_image = image_list.montage do
      self.frame = '2x2'
      self.geometry = '300x300'
    end
    separated_image_file = image_file.with_extname(".#{@profile.name}.sep.tif")
    ;;warn "writing montaged separated file to #{separated_image_file}"
    separated_image.write(separated_image_file) { self.compression = Magick::ZipCompression }
  else
    images.each do |channel, separated_image|
      separated_image_file = image_file.with_extname(".#{@profile.name}.sep-#{channel}.tif")
      ;;warn "writing channel #{channel} of separated file to #{separated_image_file}"
      separated_image.write(separated_image_file.to_s) { self.compression = Magick::ZipCompression }
    end
  end

  if @save_luts
    separator.luts.each do |channel, lut_image|
      lut_file = image_file.with_extname(".#{@profile.name}.lut-#{channel}.tif")
      ;;warn "writing LUT image to #{lut_file}"
      lut_image.write(lut_file) { self.compression = Magick::ZipCompression }
    end
  end
end