org.geotoolkit.coverage.processing.operation
Class NodataFilter

Object
  AbstractOperation
      Operation2D
          OperationJAI
              FilterOperation
                  NodataFilter

All Implemented Interfaces:

Serializable, Operation

@Immutable
public class NodataFilter
extends FilterOperation

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

Name: "NodataFilter"
JAI operator: none
Parameters:

Name	Class	Default value	Minimum value	Maximum value
"Source"	GridCoverage2D	N/A	N/A	N/A
"padding"	Integer	1	0	N/A
"validityThreshold"	Integer	4	0	N/A

Since:

2.2

Version:

3.00

Author:

Martin Desruisseaux (IRD)

See Also:

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

Module:

coverage/geotk-coverage (download)

View source code for this class

Nested Class Summary

Nested classes/interfaces inherited from class OperationJAI

OperationJAI.Parameters

Field Summary

Fields inherited from class OperationJAI

operation, RENDERED_MODE

Fields inherited from class Operation2D

PRIMARY_SOURCE_INDEX, SOURCE_0, SOURCE_1, SOURCE_2

Fields inherited from class AbstractOperation

descriptor

Constructor Summary

NodataFilter()
Constructs a default "NodataFilter" operation.

Method Summary

Methods inherited from class FilterOperation

deriveSampleDimension

Methods inherited from class OperationJAI

createRenderedImage, deriveCategory, deriveGridCoverage, deriveName, deriveRange, deriveUnit, doOperation, equals, getJAI, getOperationDescriptor, getProperties, getQuantitative, prepareParameters, resampleToCommonGeometry

Methods inherited from class Operation2D

extractSources, extractSources, getComputationView

Methods inherited from class AbstractOperation

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

Methods inherited from class Object

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

Constructor Detail

NodataFilter

public NodataFilter()

Constructs a default "NodataFilter" operation.