view general/numerical/zeromax.m @ 61:eff6bddf82e3 tip

Finally implemented perceptual brightness thing.

% zeromax - additive normalisation so max value us zero
%
% zeromax :: 
%    [D:[[E]]] ~'E dimensional array of size D', 
%    1..D      ~'dimension to normalise along' 
% -> [D] ~'shifted data'.
%
% non-finite values are ignored. Dimension defaults to 1.
function [y,m]=zeromax(x,dim), x=addnorm(@(y)max(y,[],dim),x); end