org.geotools.image.palette

Class ColorReduction

Object

PlanarImage

OpImage

PointOpImage

ColorReduction

All Implemented Interfaces:

RenderedImage, ImageJAI, PropertyChangeEmitter, PropertySource, WritablePropertySource

public class ColorReduction
extends PointOpImage

PointOpImage to perform color reduction on an image using the palette builder.

Author:

Simone Giannecchini, GeoSolutions, Nicola Lagomarsini, GeoSolutions SAS

Field Summary

Fields inherited from class OpImage

cache, cobbleSources, OP_COMPUTE_BOUND, OP_IO_BOUND, OP_NETWORK_BOUND, tileCacheMetric, tileRecycler

Fields inherited from class PlanarImage

colorModel, eventManager, height, minX, minY, properties, sampleModel, tileFactory, tileGridXOffset, tileGridYOffset, tileHeight, tileWidth, width

Constructor Summary

Constructors

Constructor and Description
ColorReduction(RenderedImage image, RenderingHints hints, int numColors, int alpaThreshold, int subsx, int subsy)

Method Summary

Modifier and Type	Method and Description
Raster	computeTile(int tx, int ty)

Methods inherited from class PointOpImage

dispose, isColormapOperation, mapDestRect, mapSourceRect, permitInPlaceOperation

Methods inherited from class OpImage

addTileToCache, cancelTiles, computeRect, computeRect, computesUniqueTiles, createTile, getExpandedNumBands, getFormatTags, getOperationComputeType, getTile, getTileCache, getTileCacheMetric, getTileDependencies, getTileFromCache, getTileRecycler, getTiles, hasExtender, mapDestPoint, mapSourcePoint, prefetchTiles, queueTiles, recycleTile, setTileCache, vectorize, vectorize, vectorize

Methods inherited from class PlanarImage

addPropertyChangeListener, addPropertyChangeListener, addSink, addSink, addSource, addTileComputationListener, copyData, copyData, copyExtendedData, createColorModel, createSnapshot, createWritableRaster, finalize, getAsBufferedImage, getAsBufferedImage, getBounds, getColorModel, getData, getData, getDefaultColorModel, getExtendedData, getGraphics, getHeight, getImageID, getMaxTileX, getMaxTileY, getMaxX, getMaxY, getMinTileX, getMinTileY, getMinX, getMinY, getNumBands, getNumSources, getNumXTiles, getNumYTiles, getProperties, getProperty, getPropertyClass, getPropertyNames, getPropertyNames, getSampleModel, getSinks, getSource, getSourceImage, getSourceObject, getSources, getSplits, getTileComputationListeners, getTileFactory, getTileGridXOffset, getTileGridYOffset, getTileHeight, getTileIndices, getTileRect, getTiles, getTileWidth, getWidth, overlapsMultipleTiles, removeProperty, removePropertyChangeListener, removePropertyChangeListener, removeSink, removeSink, removeSinks, removeSource, removeSources, removeTileComputationListener, setImageLayout, setProperties, setProperty, setSource, setSources, tileXToX, tileXToX, tileYToY, tileYToY, toString, wrapRenderedImage, XToTileX, XToTileX, YToTileY, YToTileY

Methods inherited from class Object

clone, equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ColorReduction

public ColorReduction(RenderedImage image,
                      RenderingHints hints,
                      int numColors,
                      int alpaThreshold,
                      int subsx,
                      int subsy)

Method Detail

computeTile

public Raster computeTile(int tx,
                          int ty)

Overrides:

computeTile in class PointOpImage