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java.lang.Objectjavax.media.jai.PlanarImage
javax.media.jai.OpImage
javax.media.jai.AreaOpImage
org.geotools.image.jai.NodataFilter
public class NodataFilter
Replaces Double.NaN
values by the weighted average of neighbors values.
This operation use a box of size
×size
pixels centered on
each NaN
value. The weighted average is then computed, ignoring all
NaN
values. If the number of valid values is greater than
validityThreshold
, then the center NaN
is replaced
by the computed average. Otherwise, the NaN
value is left unchanged.
Field Summary |
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Fields inherited from class javax.media.jai.AreaOpImage |
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bottomPadding, extender, leftPadding, rightPadding, topPadding |
Fields inherited from class javax.media.jai.OpImage |
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cache, cobbleSources, OP_COMPUTE_BOUND, OP_IO_BOUND, OP_NETWORK_BOUND, tileCacheMetric, tileRecycler |
Fields inherited from class javax.media.jai.PlanarImage |
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colorModel, eventManager, height, minX, minY, properties, sampleModel, tileFactory, tileGridXOffset, tileGridYOffset, tileHeight, tileWidth, width |
Constructor Summary | |
---|---|
protected |
NodataFilter(java.awt.image.RenderedImage source,
javax.media.jai.ImageLayout layout,
java.util.Map map,
int padding,
int validityThreshold)
Constructs a new operation. |
Method Summary | |
---|---|
protected void |
computeRect(javax.media.jai.PlanarImage[] sources,
java.awt.image.WritableRaster dest,
java.awt.Rectangle destRect)
Computes a rectangle of outputs. |
Methods inherited from class javax.media.jai.AreaOpImage |
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computeTile, getBorderExtender, getBottomPadding, getLeftPadding, getRightPadding, getTopPadding, mapDestRect, mapSourceRect |
Methods inherited from class javax.media.jai.OpImage |
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addTileToCache, cancelTiles, computeRect, computesUniqueTiles, createTile, dispose, getExpandedNumBands, getFormatTags, getOperationComputeType, getTile, getTileCache, getTileCacheMetric, getTileDependencies, getTileFromCache, getTileRecycler, getTiles, hasExtender, mapDestPoint, mapSourcePoint, prefetchTiles, queueTiles, recycleTile, setTileCache, vectorize, vectorize, vectorize |
Methods inherited from class javax.media.jai.PlanarImage |
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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 java.lang.Object |
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clone, equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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protected NodataFilter(java.awt.image.RenderedImage source, javax.media.jai.ImageLayout layout, java.util.Map map, int padding, int validityThreshold)
source
- The source image.layout
- The image layout.map
- The image properties and rendering hints.padding
- The number of pixel above, below, to the left and to the right of central
NaN
pixel. The full box size is padding
×2+1.validityThreshold
- The minimal number of valid neighbors required in order to consider
the average as valid.Method Detail |
---|
protected void computeRect(javax.media.jai.PlanarImage[] sources, java.awt.image.WritableRaster dest, java.awt.Rectangle destRect)
computeRect
in class javax.media.jai.OpImage
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