org.geotoolkit.image.jai
Class Combine.Dyadic

Object
  PlanarImage
      OpImage
          PointOpImage
              Combine
                  Combine.Dyadic

All Implemented Interfaces:

RenderedImage, ImageJAI, PropertyChangeEmitter, PropertySource, WritablePropertySource

Enclosing class:

Combine

public static class Combine.Dyadic
extends Combine

Optimized Combine operation for dyadic (two sources) image. This operation performs a linear combination of two images (src0 and src1). The parameters scale0 and scale1 indicate the scale of source images src0 and src1. If we consider pixel at coordinate (x,y), its value is determinate by the pseudo-code:

value = src0[x][y]*scale0 + src1[x][y]*scale1 + offset

Since:

2.1

Version:

3.00

Author:

Rémi Eve (IRD), Martin Desruisseaux (IRD)

Module:

coverage/geotk-coverage (download)

View source code for this class

Nested Class Summary

Nested classes/interfaces inherited from class Combine

Combine.Dyadic, Combine.Transform

Field Summary

Fields inherited from class Combine

OPERATION_NAME, transform

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

Combine.Dyadic(Vector<? extends RenderedImage> images, double[][] matrix, RenderingHints hints)
Constructs a new instance of Combine.Dyadic.

Method Summary

void	computeRect(PlanarImage[] images, WritableRaster dest, Rectangle destRect) Computes one tile.

Methods inherited from class Combine

getSources

Methods inherited from class PointOpImage

computeTile, dispose, isColormapOperation, mapDestRect, mapSourceRect, permitInPlaceOperation

Methods inherited from class OpImage

addTileToCache, cancelTiles, 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, 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

Combine.Dyadic

public Combine.Dyadic(Vector<? extends RenderedImage> images,
                      double[][] matrix,
                      RenderingHints hints)
               throws MismatchedSizeException

Constructs a new instance of Combine.Dyadic.

Parameters:

images - The rendered sources. This vector must contains exactly 2 sources.

matrix - The linear combination coefficients as a matrix.

hints - The rendering hints.

Throws:

MismatchedSizeException - if some rows in the matrix argument doesn't have the expected length.

Method Detail

computeRect

public void computeRect(PlanarImage[] images,
                        WritableRaster dest,
                        Rectangle destRect)

Computes one tile.

Overrides:

computeRect in class Combine

Parameters:

images - The source images.

dest - The raster to be filled in.

destRect - The region within the raster to be filled.