Re: box size interval-fractal fanal+

Posted by Gabriel Landini on
URL: http://imagej.273.s1.nabble.com/Advice-for-GUI-plugin-development-tp5001300p5001314.html

On Thursday 03 Jan 2013 20:28:32 carlo bianco wrote:
> I'd like to know if is possible to define the scaling window in
> imagej, something like fanal+, developed in
> jürgen W Dollinger et al 1998 J. Phys. A: Math. Gen. 31 3839
> doi:10.1088/0305-4470/31/16/012 Bi-asymptotic fractals: Fractals between
> lower and upper bounds
> Jürgen W Dollinger, Ralf Metzler and Theo F Nonnenmacher

Hi Carlo,
If you are talking about the box counting command in IJ, it has not been
implemented yet. Currently you need to define what are the box sizes used in
the analysis and the slope will be computed over that range.

It might be useful to define the ranges over which the plot approaches a line
considering the resolution of the image as well as the size of the structural
units in the objects you are analysing (and the size of the object of course).
You will find that for most biological objects that might be fractal (in an
operational sense) the "fractal regime" spans about one or at most 2 orders of
magnitude (for obvious reasons, but that is rarely discussed in relation to
what people seem to want to analyse).

Regards
Gabriel

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