| This code is issued for research purposes only and remains the |
| property of the UK Secretary of State for Defence. This code must |
| not be passed on without this header information being kept |
| intact. This code must not be sold. |
| |
| A UK patent has been granted: "Method for digitally processing |
| images to determine the position of edges and/or corners therein for |
| guidance of unmanned vehicle", UK Patent 2272285. Proprietor: |
| Secretary of State for Defence, UK. 15 January 1997 |
| |
| |
| Source Code obtained from: |
| |
| http://www.fmrib.ox.ac.uk/~steve/susan/index.html |