Package jj2000.j2k.wavelet

Class WTFilterSpec

  • public abstract class WTFilterSpec
extends java.lang.Object
    This is the generic class from which the ones that hold the analysis or synthesis filters to be used in each part of the image derive. See AnWTFilterSpec and SynWTFilterSpec.

    The filters to use are defined by a hierarchy. The hierarchy is:

    - Tile and component specific filters
    - Tile specific default filters
    - Component main default filters
    - Main default filters

    At the moment tiles are not supported by this class.

    See Also:
    AnWTFilterSpec, SynWTFilterSpec

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static byte FILTER_SPEC_COMP_DEF
      The identifier for "component default" specified filters
      static byte FILTER_SPEC_MAIN_DEF
      The identifier for "main default" specified filters
      static byte FILTER_SPEC_TILE_COMP
      The identifier for "tile and component specific" specified filters
      static byte FILTER_SPEC_TILE_DEF
      The identifier for "tile specific default" specified filters
      protected byte[] specValType
      The spec type for each tile and component.

    • Constructor Summary

      Constructors 
      Modifier Constructor Description
      protected WTFilterSpec​(int nc)
      Constructs a 'WTFilterSpec' object, initializing all the components and tiles to the 'FILTER_SPEC_MAIN_DEF' spec type, for the specified number of components and tiles.

    • Method Summary

      All Methods Instance Methods Abstract Methods Concrete Methods 
      Modifier and Type Method Description
      byte getKerSpecType​(int n)
      Returns the type of specification for the filters in the specified component and tile.
      abstract int getWTDataType()
      Returns the data type used by the filters in this object, as defined in the 'DataBlk' interface.

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • FILTER_SPEC_MAIN_DEF

        public static final byte FILTER_SPEC_MAIN_DEF
        The identifier for "main default" specified filters
        See Also:
        Constant Field Values

      • FILTER_SPEC_COMP_DEF

        public static final byte FILTER_SPEC_COMP_DEF
        The identifier for "component default" specified filters
        See Also:
        Constant Field Values

      • FILTER_SPEC_TILE_DEF

        public static final byte FILTER_SPEC_TILE_DEF
        The identifier for "tile specific default" specified filters
        See Also:
        Constant Field Values

      • FILTER_SPEC_TILE_COMP

        public static final byte FILTER_SPEC_TILE_COMP
        The identifier for "tile and component specific" specified filters
        See Also:
        Constant Field Values

      • specValType

        protected byte[] specValType
        The spec type for each tile and component. The first index is the component index, the second is the tile index. NOTE: The tile specific things are not supported yet.

    • Constructor Detail

      • WTFilterSpec

        protected WTFilterSpec​(int nc)
        Constructs a 'WTFilterSpec' object, initializing all the components and tiles to the 'FILTER_SPEC_MAIN_DEF' spec type, for the specified number of components and tiles.

        NOTE: The tile specific things are not supported yet

        Parameters:
        nc - The number of components

    • Method Detail

      • getWTDataType

        public abstract int getWTDataType()
        Returns the data type used by the filters in this object, as defined in the 'DataBlk' interface.
        Returns:
        The data type of the filters in this object
        See Also:
        DataBlk

      • getKerSpecType

        public byte getKerSpecType​(int n)
        Returns the type of specification for the filters in the specified component and tile. The specification type is one of: 'FILTER_SPEC_MAIN_DEF', 'FILTER_SPEC_COMP_DEF', 'FILTER_SPEC_TILE_DEF', 'FILTER_SPEC_TILE_COMP'.

        NOTE: The tile specific things are not supported yet

        Parameters:
        n - The component index
        Returns:
        The specification type for component 'n' and tile 't'.