Dr Jean-François Parrot

This software calculates from raw and bmp images, fractal dimensions using different approaches.

A first function allows extracting an object according to its gray tone values in order to characterize the studied shape by means of lineal function, box counting, Brownian movement, etc. This extraction implies a gray tone visual interpretation that can be validated using the notion of gray tone roughness or "fractal thresholding" (see later). A labeling applied to the binary image separates the different items that eventually compose the studied object, in such a way that it is possible to compare the different connected components.

Some other parameters are calculated directly from the gray tone scale: local fractal dimension, star fractal, prismatic fractal, gray tone roughness, etc. These applications take into account the whole scene or the items obtained by using the binarization or the labeling.

On the other hand, it is possible to extract gray tone sequences from the whole scene, lineal scanning or by using the items as a mask. The sequence thus obtained allows calculating several parameters such as the Hurst coefficient.

Finally, the software offers the possibility to create a general report where plotted are all the realized operations, the parameter values obtained, as well as the name of the saved images and diagrams.



J.-F. Parrot, Mexico 2009



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Frog Software
Frog V1 Manual


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