Package org.eclipse.imagen.media.rescale

Class RescaleOpImage

Object

PlanarImage

OpImage

PointOpImage

RescaleOpImage

All Implemented Interfaces:

RenderedImage, ImageImageN, PropertyChangeEmitter, PropertySource, WritablePropertySource

public class RescaleOpImage
extends PointOpImage

This class is used for rescaling the source image pixels with the given scale and offset factors. At the instantiation time this class checks if the input parameters are suitable for the Rescale operation. If the image data type is Byte, the rescale operation on every pixel value is pre-calculated and stored inside a byte array and the rescaling is effectively a simple lookup operation. For the other data types the Rescale operation is performed at runtime. The rescale operation is executed for each tile independently. If input ROI or NoData values are founded, then they are not rescaled, but the input destination No Data value is returned.

Field Summary

Fields inherited from class OpImage

OP_COMPUTE_BOUND, OP_IO_BOUND, OP_NETWORK_BOUND

Constructor Summary

Constructors

Constructor	Description
RescaleOpImage(RenderedImage source, ImageLayout layout, Map configuration, double[] valueScale, double[] valueOffsets, double destinationNoData, ROI roi, Range noData, boolean useROIAccessor)

Method Summary

Modifier and Type	Method	Description
void	dispose()	Disposes of any remaining tiles in the TileCache.

Methods inherited from class PointOpImage

computeTile, mapDestRect, mapSourceRect

Methods inherited from class OpImage

cancelTiles, computesUniqueTiles, getExpandedNumBands, getOperationComputeType, getTile, getTileCache, getTileCacheMetric, getTileDependencies, getTileRecycler, getTiles, hasExtender, mapDestPoint, mapSourcePoint, prefetchTiles, queueTiles, setTileCache

Methods inherited from class PlanarImage

addPropertyChangeListener, addPropertyChangeListener, addSink, addTileComputationListener, copyData, copyData, copyExtendedData, createColorModel, createSnapshot, getAsBufferedImage, getAsBufferedImage, getBounds, getColorModel, getData, getData, getDefaultColorModel, getExtendedData, getGraphics, getHeight, getImageID, getMaxTileX, getMaxTileY, getMaxX, getMaxY, getMinTileX, getMinTileY, getMinX, getMinY, getNumBands, getNumSources, getNumXTiles, getNumYTiles, 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, removeSinks, removeTileComputationListener, setProperty, tileXToX, tileXToX, tileYToY, tileYToY, toString, wrapRenderedImage, XToTileX, XToTileX, YToTileY, YToTileY

Methods inherited from class Object

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

Constructor Details

RescaleOpImage

public RescaleOpImage(RenderedImage source,
 ImageLayout layout,
 Map configuration,
 double[] valueScale,
 double[] valueOffsets,
 double destinationNoData,
 ROI roi,
 Range noData,
 boolean useROIAccessor)

Method Details

dispose

public void dispose()

Description copied from class: PointOpImage

Disposes of any remaining tiles in the TileCache.

If cache is non-null, in place operation is enabled, and tileRecycler is non-null, then all tiles owned by this specific image are removed from the cache. Subsequent to this super.dispose() is invoked.

Overrides:

dispose in class PointOpImage