cbir_l2dist.m

matlab编程

function dist = CBIR_L2dist(x1, x2)
% EE6850 HW3, Content-Based Image Retrieval
% CBIR_L2dist() --- L2 distance of a given feature vector pair
% input:
%   feature vector x1 and x2 (1xN)
% output:
%    their L-2 distance
% 10-19-2001, [e-mail]

if sum(size(x1)==size(x2))~=2
    error('To calculate L-2 distance, matrix dimension must agree');
end

dist = sqrt(sum( (x1(:)-x2(:)).^2 ));