Associação Portuguesa de Reconhecimento de Padrões (APRP)
Abstract
A program, was accomplished in MATLAB,
that allows the morphological characterisation of
particles with special emphasis to microbial
aggregates. After automatic identification and
isolation of different particles in a real image, the
program determines several fractal dimensions as the
mass dimension, the surface dimension, the area versus
perimeter dimension, and the area vs. Feret diameter.
The values of many other parameters are also
provided, such as: convexity, compactness, roundness,
as well as the 0th, 1st, and 2nd moments, whether the
0th moment is the area or the volume of the particle.
The program also displays the particle size
distribution. The program is easy to operate and all the
steps that need decisions from the user are displayed in
menus and buttons. As an example of application, the
morphological characterisation of different microbial
aggregates present in anaerobic wastewater treatment
systems has been performed
