org.geotools.coverage.processing.operation
Class NodataFilter

java.lang.Object
  org.geotools.coverage.processing.AbstractOperation
      org.geotools.coverage.processing.Operation2D
          org.geotools.coverage.processing.OperationJAI
              org.geotools.coverage.processing.FilterOperation
                  org.geotools.coverage.processing.operation.NodataFilter

All Implemented Interfaces:

org.opengis.coverage.processing.Operation, java.io.Serializable

public class NodataFilter

extends FilterOperation

Replaces NaN values by the weighted average of neighbors values. This operation uses a box of × pixels centered on each value, where = 2×+1 (the padding is the number of pixel above, below, to the left and to the right of central pixel). The weighted average is then computed, ignoring all values. If the number of valid values is greater than or equals to , then the center is replaced by the computed average. Otherwise, the value is left unchanged.

Name: "NodataFilter"
JAI operator: none
Parameters:

Name	Class	Default value	Minimum value	Maximum value
	GridCoverage2D	N/A	N/A	N/A
	Integer	1	0	N/A
	Integer	4	0	N/A

Since:

2.2

Version:

$Id: NodataFilter.java 17672 2006-01-19 00:25:55Z desruisseaux $

Author:

Martin Desruisseaux

See Also:

Operations.nodataFilter(GridCoverage,int,int), Serialized Form

Nested Class Summary

Nested classes inherited from class org.geotools.coverage.processing.OperationJAI

OperationJAI.Parameters

Field Summary

Fields inherited from class org.geotools.coverage.processing.OperationJAI

operation

Fields inherited from class org.geotools.coverage.processing.Operation2D

SOURCE_0

Fields inherited from class org.geotools.coverage.processing.AbstractOperation

descriptor

Constructor Summary

NodataFilter()
Constructs a default operation.

Methods inherited from class org.geotools.coverage.processing.FilterOperation

deriveSampleDimension

Methods inherited from class org.geotools.coverage.processing.OperationJAI

computeOnGeophysicsValues, createRenderedImage, deriveCategory, deriveGridCoverage, deriveName, deriveRange, deriveUnit, doOperation, equals, getJAI, resampleToCommonGeometry

Methods inherited from class org.geotools.coverage.processing.Operation2D

getFactory, getGridCoverageProcessor

Methods inherited from class org.geotools.coverage.processing.AbstractOperation

ensureNonNull, getDescription, getDocURL, getName, getNumSources, getParameters, getProcessor, getVendor, getVersion, hashCode, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

NodataFilter

public NodataFilter()

Constructs a default operation.