lightness = rgb2lightness(rgb)
converts RGB color values to lightness values, excluding the color components.
lightness is same as the L* component in the CIE 1976 L*a*b* color
space.
Converted lightness values, returned as an
m-by-n image array. If the input data type is
double, the output data type is double.
Otherwise, the output data type is single.
Data Types: single | double
Extended Capabilities
C/C++ Code Generation Generate C and C++ code using MATLAB® Coder™.
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