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Re: particle analysis-Feret diameter

Posted by audrey karperien on Nov 28, 2005; 4:14pm
URL: http://imagej.273.s1.nabble.com/particle-analysis-Feret-diameter-tp3704371p3704374.html

Regarding the banana, for a few years, I've been doing analyses on cells that change their morphology dramatically, sometimes being shaped very much like banana and others like an egg, as well as some other very different shapes.  I need info on the smallest and largest "diameters", the degree of variability, roundness, etc., and have found the convex hull and the various radii defining it to be a useful way of distinguishing amongst the shapes and relating them to their biological correlates.  I've been using FracLac for this, which also gives fractal, multifractal, and lacunarity values that are useful in defining the cell shapes.  As to the banana, I looked at breakfast and measured the roundness and radii of the convex hull, lacunarity, and density within the convex hull.  The banana had a fractal dimension of 1, though-boring, eh?

Audrey