001: /*
002: * $RCSfile: ForwWTDataProps.java,v $
003: * $Revision: 1.1 $
004: * $Date: 2005/02/11 05:02:30 $
005: * $State: Exp $
006: *
007: * Class: ForwWTDataProps
008: *
009: * Description: Extends ImgData with forward wavelet specific
010: * things.
011: *
012: *
013: *
014: * COPYRIGHT:
015: *
016: * This software module was originally developed by Raphaël Grosbois and
017: * Diego Santa Cruz (Swiss Federal Institute of Technology-EPFL); Joel
018: * Askelöf (Ericsson Radio Systems AB); and Bertrand Berthelot, David
019: * Bouchard, Félix Henry, Gerard Mozelle and Patrice Onno (Canon Research
020: * Centre France S.A) in the course of development of the JPEG2000
021: * standard as specified by ISO/IEC 15444 (JPEG 2000 Standard). This
022: * software module is an implementation of a part of the JPEG 2000
023: * Standard. Swiss Federal Institute of Technology-EPFL, Ericsson Radio
024: * Systems AB and Canon Research Centre France S.A (collectively JJ2000
025: * Partners) agree not to assert against ISO/IEC and users of the JPEG
026: * 2000 Standard (Users) any of their rights under the copyright, not
027: * including other intellectual property rights, for this software module
028: * with respect to the usage by ISO/IEC and Users of this software module
029: * or modifications thereof for use in hardware or software products
030: * claiming conformance to the JPEG 2000 Standard. Those intending to use
031: * this software module in hardware or software products are advised that
032: * their use may infringe existing patents. The original developers of
033: * this software module, JJ2000 Partners and ISO/IEC assume no liability
034: * for use of this software module or modifications thereof. No license
035: * or right to this software module is granted for non JPEG 2000 Standard
036: * conforming products. JJ2000 Partners have full right to use this
037: * software module for his/her own purpose, assign or donate this
038: * software module to any third party and to inhibit third parties from
039: * using this software module for non JPEG 2000 Standard conforming
040: * products. This copyright notice must be included in all copies or
041: * derivative works of this software module.
042: *
043: * Copyright (c) 1999/2000 JJ2000 Partners.
044: *
045: *
046: *
047: */
048:
049: package jj2000.j2k.wavelet.analysis;
050:
051: import jj2000.j2k.image.*;
052: import jj2000.j2k.wavelet.*;
053:
054: /**
055: * This interface extends the ImgData interface with methods that are
056: * necessary for forward wavelet data (i.e. data that is produced by a forward
057: * wavelet transform).
058: */
059: public interface ForwWTDataProps extends ImgData {
060:
061: /**
062: * Returns the reversibility of the given tile-component. Data is
063: * reversible when it is suitable for lossless and
064: * lossy-to-lossless compression.
065: *
066: * @param t Tile index
067: *
068: * @param c Component index
069: *
070: * @return true is the data is reversible, false if not.
071: *
072: *
073: * */
074: public boolean isReversible(int t, int c);
075:
076: /**
077: * Returns a reference to the root of subband tree structure representing
078: * the subband decomposition for the specified tile-component.
079: *
080: * @param t The index of the tile.
081: *
082: * @param c The index of the component.
083: *
084: * @return The root of the subband tree structure, see Subband.
085: *
086: * @see SubbandAn
087: *
088: * @see Subband
089: * */
090: public SubbandAn getAnSubbandTree(int t, int c);
091:
092: /**
093: * Returns the horizontal offset of the code-block partition. Allowable
094: * values are 0 and 1, nothing else.
095: * */
096: public int getCbULX();
097:
098: /**
099: * Returns the vertical offset of the code-block partition. Allowable
100: * values are 0 and 1, nothing else.
101: * */
102: public int getCbULY();
103: }
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