facedistance.m

It is for Face Recognition

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% function faceDistance()
%   z.li, 03-18-2004
%   find face relevance to a model with certain distance metric
% function dependency:
%   - faceDistance(metric, v1, v2)
% input:
%   v1, v2 - face vector in the original PCA space
%   metric - 'eucl', 'ker1', 'ker2'...etc
% output:
%   relv - [0 1] value
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%function [d]=faceDistance(metric, v1, v2)
function [d]=faceDistance(metric, v1, v2)

if metric == 'eucl'  
  d=norm(v1-v2, 2);
else
  d = 0;
end