Class java.awt.image.LookupTable
java.lang.Object
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+----java.awt.image.LookupTable
- Subclasses:
- ByteLookupTable, ShortLookupTable
- public abstract class LookupTable
- extends Object
This abstract class defines a lookup table object. The subclasses
are ByteLookupTable and ShortLookupTable, which
contain byte and short data, respectively. A lookup table
contains data for one or more tile channels or image components
(for example, separate arrays for R, G, and B),
and it contains an offset which will be subtracted from the
input value before indexing into the array. This allows an array
smaller than the native data size to be provided for a
constrained input. If there is only one array in the lookup
table, it will be applied to all channels. All arrays must be the
same size.
- See Also:
- ByteLookupTable, ShortLookupTable, LookupOp
Constructor Summary
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LookupTable(int offset,
int numComponents)
Creates a new LookupTable from the number of components and an offset
into the lookup table.
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Method Summary
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int
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getNumComponents()
Returns the number of components in the lookup table.
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int
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getOffset()
Returns the offset.
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int[]
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lookupPixel(int[] src,
int[] dest)
Returns an array of components for one pixel.
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Methods inherited from class java.lang.Object
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
LookupTable
protected LookupTable(int offset,
int numComponents)
- Creates a new LookupTable from the number of components and an offset
into the lookup table.
getNumComponents
public int getNumComponents()
- Returns the number of components in the lookup table.
getOffset
public int getOffset()
- Returns the offset.
lookupPixel
public abstract int[] lookupPixel(int[] src,
int[] dest)
- Returns an array of components for one pixel. Source and Destination
could be equal. Destination could be NULL.
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