class RGBUtils::LumaCalculator
Constants
- BLUE_L
- GREEN_L
- RED_L
Attributes
rgb[R]
Public Class Methods
new(color)
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# File lib/rgb_utils/calculators/luma_calculator.rb, line 9 def initialize(color) @rgb = HexToRGBConverter.convert(color) end
Public Instance Methods
calculate()
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# File lib/rgb_utils/calculators/luma_calculator.rb, line 13 def calculate @luma ||= ((RED_L * red) + (GREEN_L * green) + (BLUE_L * blue))/255 end