# Image Contour Extraction

Copyright Tristan Aubrey-Jones November 2006.

## meandist.m

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```
function d = meandist(V);
% MEANDIST Mean distance between vectors.
% MEANDIST(V) calculates the mean distance between all
% all vectors in the matrix of row vectors.
%% Sum distance between vectors
sz = size(V);
total = 0;
vlast = V(1,:);
for i = 2:sz(1)
vi = V(i,:);
total = total + norm(vi - vlast);
vlast = vi;
end
%% Average by number of gaps
d = total / (sz(1) - 1);
```