Direct Known Subclasses:

ByteLookupTable, ShortLookupTable

public abstract class LookupTable
extends Object 

See Also:

ByteLookupTable, ShortLookupTable, LookupOp

• Constructor Summary

  Constructors

  Modifier	Constructor and Description
  protected	LookupTable (int offset, int numComponents) Constructs a new LookupTable from the number of components and an offset into the lookup table.

• Method Summary

  Methods

  Modifier and Type	Method and Description
  int	getNumComponents () Returns the number of components in the lookup table.
  int	getOffset () Returns the offset.
  abstract int[]	lookupPixel (int[] src, int[] dest) Returns an int array of components for one pixel.

  • Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

• Constructor Detail

  • LookupTable

    protected LookupTable(int offset,
     int numComponents)

    Constructs a new LookupTable from the number of components and an offset into the lookup table.

    Parameters:

    offset - the offset to subtract from input values before indexing into the data arrays for this LookupTable

    numComponents - the number of data arrays in this LookupTable

    Throws:

    IllegalArgumentException - if offset is less than 0 or if numComponents is less than 1

• Method Detail

  • getNumComponents

    public int getNumComponents()

    Returns the number of components in the lookup table.

    Returns:

    the number of components in this LookupTable.

  • getOffset

    public int getOffset()

    Returns the offset.

    Returns:

    the offset of this LookupTable.

  • lookupPixel

    public abstract int[] lookupPixel(int[] src,
     int[] dest)

    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.

    Parameters:

    src - the source array of components of one pixel

    dest - the destination array of components for one pixel, translated with this LookupTable

    Returns:

    an int array of components for one pixel.