6 def greyscale(color = nil, intensity = 1.00)
7 create_core_image_context(@original.extent.size.width, @original.extent.size.height)
9 color = OSX::CIColor.colorWithString("1.0 1.0 1.0 1.0") unless color
11 @original.color_monochrome :inputColor => color, :inputIntensity => intensity do |greyscale|
16 def sepia(intensity = 1.00)
17 create_core_image_context(@original.extent.size.width, @original.extent.size.height)
19 @original.sepia_tone :inputIntensity => intensity do |sepia|