Class ShortLookupTable
java.lang.Object
java.awt.image.LookupTable
java.awt.image.ShortLookupTable
This class defines a lookup table object.  The output of a
 lookup operation using an object of this class is interpreted
 as an unsigned short quantity.  The lookup table contains short
 data arrays for one or more bands (or components) of an image,
 and it contains an offset which will be subtracted from the
 input values before indexing 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.
- See Also:
- 
Constructor SummaryConstructorsConstructorDescriptionShortLookupTable(int offset, short[] data) Constructs a ShortLookupTable object from an array of shorts representing a lookup table for each band.ShortLookupTable(int offset, short[][] data) Constructs a ShortLookupTable object from an array of short arrays representing a lookup table for each band.
- 
Method SummaryModifier and TypeMethodDescriptionfinal short[][]getTable()Returns the lookup table data by reference.int[]lookupPixel(int[] src, int[] dst) Returns an array of samples of a pixel, translated with the lookup table.short[]lookupPixel(short[] src, short[] dst) Returns an array of samples of a pixel, translated with the lookup table.Methods declared in class java.awt.image.LookupTablegetNumComponents, getOffset
- 
Constructor Details- 
ShortLookupTablepublic ShortLookupTable(int offset, short[][] data) Constructs a ShortLookupTable object from an array of short arrays representing a lookup table for each band. The offset will be subtracted from the input values before indexing into the arrays. The number of bands is the length of the data argument. The data array for each band is stored as a reference.- Parameters:
- offset- the value subtracted from the input values before indexing into the arrays
- data- an array of short arrays representing a lookup table for each band
 
- 
ShortLookupTablepublic ShortLookupTable(int offset, short[] data) Constructs a ShortLookupTable object from an array of shorts representing a lookup table for each band. The offset will be subtracted from the input values before indexing into the array. The data array is stored as a reference.- Parameters:
- offset- the value subtracted from the input values before indexing into the arrays
- data- an array of shorts
 
 
- 
- 
Method Details- 
getTablepublic final short[][] getTable()Returns the lookup table data by reference. If this ShortLookupTable was constructed using a single short array, the length of the returned array is one.- Returns:
- ShortLookupTable data array.
 
- 
lookupPixelpublic int[] lookupPixel(int[] src, int[] dst) Returns an array of samples of a pixel, translated with the lookup table. The source and destination array can be the same array. Arraydstis returned.- Specified by:
- lookupPixelin class- LookupTable
- Parameters:
- src- the source array.
- dst- the destination array. This array must be at least as long as- src. If- dstis- null, a new array will be allocated having the same length as- src.
- Returns:
- the array dst, anintarray of samples.
- Throws:
- ArrayIndexOutOfBoundsException- if- srcis longer than- dstor if for any element- iof- src,- (src[i]&0xffff)-offsetis either less than zero or greater than or equal to the length of the lookup table for any band.
 
- 
lookupPixelpublic short[] lookupPixel(short[] src, short[] dst) Returns an array of samples of a pixel, translated with the lookup table. The source and destination array can be the same array. Arraydstis returned.- Parameters:
- src- the source array.
- dst- the destination array. This array must be at least as long as- src. If- dstis- null, a new array will be allocated having the same length as- src.
- Returns:
- the array dst, anintarray of samples.
- Throws:
- ArrayIndexOutOfBoundsException- if- srcis longer than- dstor if for any element- iof- src,- (src[i]&0xffff)-offsetis either less than zero or greater than or equal to the length of the lookup table for any band.
 
 
-