class Vissen::Output::Filter::Gamma
Applies gamma correction to the given PixelGrid.
Attributes
value[R]
@return [Float] the gamma correction value.
Public Class Methods
new(*args, value: 2.2)
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@param args (see Filter
) @param value [Float] the gamma correction value.
Calls superclass method
Vissen::Output::Filter::new
# File lib/vissen/output/filter/gamma.rb, line 15 def initialize(*args, value: 2.2) super(*args) @value = value freeze end
Public Instance Methods
apply(pixel_buffer)
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Applies the filter to the given pixel cloud.
@see Filter
@param pixel_buffer [PixelBuffer] the pixel buffer to perform the
filter operation on.
# File lib/vissen/output/filter/gamma.rb, line 28 def apply(pixel_buffer) pixel_buffer.each do |pixel| pixel.r = pixel.r**@value pixel.g = pixel.g**@value pixel.b = pixel.b**@value end end