Computational Botany by Paolo Remagnino Simon Mayo Paul Wilkin James Cope & Don Kirkup

Author:Paolo Remagnino, Simon Mayo, Paul Wilkin, James Cope & Don Kirkup
Language: eng
Format: epub
Publisher: Springer Berlin Heidelberg, Berlin, Heidelberg

where and are the pheromone level and visibility respectively at pixel j, and are the weightings for these two components, and is the set of pixels neighbouring pixel i.

To prevent the ants converging on the strong edges outlining the leaf instead of the venation, the visibility for all background pixels (again calculated using Otsu’s method) and all pixels within a short distance of the background (in this case, a distance of 10 pixels) is set to 0. After all the ants have performed one move, the pheromone levels are updated:

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