PANDORE Version 6 GREYC-IMAGE

pareadisorderfactor


Measures area disorder factor.


Synopsis

pareadisorderfactor [-m mask] [rg_in|-]

Description

pareadisorderfactor measures the area disorder factor of the region map rg_in.

This factor measures the regions size homogeneity. It is calculated as follows from all region areas size:

   AD=1-1/(1+standard-deviation(area)/mean(area)).

This factor is a value between [0..1]. 0.0 characterizes homogeneous area sizes while 1.0 characterizes completely heterogeneous sizes.

This value can be get from the operator pstatus.

Inputs

Result

Returns the value of the area disorder factor.

Examples

Displays area disorder factor of the region map yielded by a simple binarization of tangram.pan:

   pbinarization 100 1e30 tangram.pan a.pan
   plabeling 8 a.pan b.pan
   pareadisorderfactor b.pan
   pstatus

See also

Region Features Extraction

C++ prototype

double PAreaDisorderFactor( const Reg2d &rg_in );

Version française

Calcul du désordre surfacique d'une carte de régions.

Author: François Angot