          TerraLib 5 - IDL module
          ========================
          
This folder contains the implementation
of a module to export/import features to/from IDL - The 
Interactive Data Language.

Module Dependencies:
--------------------

This module requires the following modules in order to be built:
1. Common Runtime
2. DataType
3. SRS
4. Geometry
5. Raster
6. Data access
7. Memory
8. GDAL
9. OGR
10·Plugin
11.Raster
12.SRS
13.Raster Processing

The third-party software needed:
1. IDL 8.X

Raster processing exported features
-----------------------------------

- Region Growing Segmenter

Description: A region growing segmentation approach described in: 
S. A. Bins, L. M. G. Fonseca, G. J. Erthal e F. M. Ii, 
"Satellite Imagery segmentation: a region growing approach", 
VIII Simposio Brasileiro de Sensoriamento Remoto, Salvador, BA, 
14-19 abril 1996.

IDL Syntax: 
result = TERRALIB_RP_SEGMENTER_RG( inputImage, minSegmentSize, segmentsSimilarityThreshold )

Parameters:
inputImage - Input image in a form of an IDL array of elements.
minSegmentSize - A positive minimum segment size (IDL scalar - pixels number). 
segmentsSimilarityThreshold - Segments similarity treshold (IDL scalar) - Segments with similarity values below this value will be merged. 
result - Output label image in a form of an IDL array of elements.

See also: 
See the documentation of te::rp::SegmenterRegionGrowingStrategy class
for more detailed info.

How to use this module
-----------------------------------

Two files are generated by compiling this module:

libterralib_idl.so (or terralib_idl.dll on windows platforms)
libterralib_idl.dlm (or terralib_idl.dlm on windows platforms)

Both files must be added into the IDL DLMs directory or
the environment variable "IDL_DLM_PATH" must be set pointing
to the location of these files.

Examples:
-----------------

Please see the examples/idl directory for each exported feature.

      ---------------------------------------------------------
             TerraLib Team <terralib-team@dpi.inpe.br>
            National Institute For Space Research - INPE
      P. BOX 515 - Sao Jose dos Campos - SP - Brazil, 12201-970
                            11/18/2008
							