java.lang.Object | |
↳ | java.awt.image.LookupTable |
Known Direct Subclasses |
This abstract class defines a lookup table object. ByteLookupTable and ShortLookupTable are subclasses, which contain byte and short data, respectively. A lookup table contains data arrays for one or more bands (or components) of an image (for example, separate arrays for R, G, and B), and it contains an offset which will be subtracted from the input values before indexing into the arrays. 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 bands. All arrays must be the same size.
Protected Constructors | |||||||||||
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Constructs a new LookupTable from the number of components and an offset
into the lookup table.
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Public Methods | |||||||||||
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Returns the number of components in the lookup table.
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Returns the offset.
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Returns an
int array of components for
one pixel. |
[Expand]
Inherited Methods | |||||||||||
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From class
java.lang.Object
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Constructs a new LookupTable from the number of components and an offset into the lookup table.
offset | the offset to subtract from input values before indexing
into the data arrays for this LookupTable |
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numComponents | the number of data arrays in this
LookupTable |
IllegalArgumentException | if offset is less than 0
or if numComponents is less than 1
|
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Returns the number of components in the lookup table.
LookupTable
.
Returns the offset.
LookupTable
.
Returns an int
array of components for
one pixel. The dest
array contains the
result of the lookup and is returned. If dest is
null
, a new array is allocated. The
source and destination can be equal.
src | the source array of components of one pixel |
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dest | the destination array of components for one pixel,
translated with this LookupTable |
int
array of components for one
pixel.