Martin,
Martin> resolution of the two maps I have tested is 300x300 and
Martin> 508x508, which results in 4 or 5 useable values. Is it
Martin> necessary to increase resolution, by simply increasing the
Martin> image size or is it possible to manipulate the divider for
Martin> the box sizes?
I'm afraid that the only solution is to increase the image size,
either literally, or by resampling at a higher resolution (if your
data is adequate).
It isn't possible to manipulate box size increments because the
efficiency of the algorithm depends on masking individual bits of the
box coordinates, which only works if the box sizes are related by a
power of 2.
Hope you can find a solution,
Mark
-------------
Dr. Mark Lake
Institute of Archaeology Tel: +44 171 391 1535
University College London
31-34 Gordon Square
London, WC1H 0PY Fax: +44 171 383 2572