plabelselection

Selects region by label value.

Synopsis

plabelselection label [rg_in|-] [rg_out|-]

Description

plabelselection selects a region from its label value. The output region map rg_out is built with the unique region that has the specified label value.

The operator pthresholding can be used to select several regions from their label value.

Parameters

label is the number of a region. If label =-1 or greater to the amount of labels then the greater label is used.

Inputs

rg_in: a region map.

Outputs

rg_out: a region map.

Result

Returns the number of selected regions.

Examples

Selects the region #10 from the region map rin.pan:

   plabelselection 10 rin.pan rout.pan

C++ prototype

Errc PLabelSelection( const Reg3d &rg_in, Reg3d &rg_out, Long label );

Version française

Sélection d'une région par son numéro de label.

Author: Régis Clouard