prelabelingfromarray

Relabels regions from label array.

Synopsis

prelabelingfromarray name [col_in|-] [rg_in|-] [rg_out|-]

Description

prelabelingfromarray relabels region of the input region map rg_in from the values of the array named name given in the input collection col_in.

The label of the input region x > 0 is set with the new label name[x-1]. If the array name has less value than the label values then the remainder regions are discarded from the result region map. The region 0 is not relabeled.

Inputs

col_in: a collection.
rg_in: a region map.

Outputs

rg_out: a region map.

Parameters

name specifies the name of the array in the collection.

Result

Returns the maximum label value of the output region map.

Examples

Relabels regions from the vector foo in the collection col.pan:

   prelabelingfromarray foo col.pan rin.pn rout.pan

C++ prototype

Errc PRelabelingFromArray( const std::string &name, const Collection &in, const Reg2d &reg_in, Reg2d &reg_out );

Version française

Relabelisation d'une carte de régions à partir des valeurs d'un vecteur d'etiquettes.

Author: Alexandre Duret-Lutz