rluminos.m

这是一个基于MATLAB的机器视觉工具箱,里面用很多非常有价值的的程序

%RLUMINOS		Relative luminosity
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%	R = RLUMINOS(lamda)
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%	Return photopic luminosity (0..1) for wavelength specified.  
%	If lambda is a column vector then so is R.
%
% SEE ALSO:	cmfxyz
%
%	Copyright (c) Peter Corke, 1999  Machine Vision Toolbox for Matlab

function lu = rluminos(lam)
	xyz = cmfxyz(lam);
	lu = xyz(:,2);	% photopic luminosity is the Y color matching function