🚀 go-pugleaf

>>In article <1992Dec14.122503.4675@jyu.fi>, tola@jyu.fi (Teemu Lahteenmaki) writes:
>> Does anyone know is there any software availble for measuring fractal
>> dimension ? The analyzis would be done from digitized images. As the
>> images can have meny gray-scales it would be useful to have some kind of
>> contrast-option.. 
>> Any sources would be appreciated.
>> ____________________________________________________________
>> I  Teemu Lahteenmaki - student of mathematical computing   I
>> I  Intergalactical University of Jyvaskyla, Finland        I
>> I_ tola@jyu.fi ___________ 25 30'32" East 62 37'59" North _I
>
>I use Ultimage on a Mac to measure sierpinski fractal dimensions.  The
>software works great on up to 256 shades of grey and colour.  I think
>it is also available for the IBM.  
>
>Michael Bardeggia

   I wrote a program to estimate fractal dimension and lacunarity using the
method presented by Keller, Chen, and Crownover: "Texture Description and
Segmentation through Fractal Geometry", Computer Vision, Graphics, and Image
Processing, 45:150-66, 1989.  It takes gray-scale images and returns the
estimated fractal dimension, D, and various lacunarity numbers ( C(L) in the
paper).  It tends to over-estimate low dimensions and under-estimate high
dimensions, but that's the limitation of the box dimension algorithm.  It
should be good for relative measurements though.  If anyone's interested, send
E-mail, but don't expect a reply until after the holiday.  --Dave.H

David E. Harris                |"I wanted to play hopscotch with the
Georgia Institute of Technology| Impenetrable Mystery of Existance, but he
Atlanta Georgia, 30332         | stepped in a wormhole and had to go home early"
Internet: dh46@prism.gatech.edu|--Crow T. Robot