/* * CVS identifier: * * $Id: InverseWT.java,v 1.1.1.1 2002/07/22 09:26:55 grosbois Exp $ * * Class:                   InverseWT * * Description:             This interface defines the specifics *                          of inverse wavelet transforms. * * * * COPYRIGHT: *  * This software module was originally developed by Rapha雔 Grosbois and * Diego Santa Cruz (Swiss Federal Institute of Technology-EPFL); Joel * Askel鰂 (Ericsson Radio Systems AB); and Bertrand Berthelot, David * Bouchard, F閘ix Henry, Gerard Mozelle and Patrice Onno (Canon Research * Centre France S.A) in the course of development of the JPEG2000 * standard as specified by ISO/IEC 15444 (JPEG 2000 Standard). This * software module is an implementation of a part of the JPEG 2000 * Standard. Swiss Federal Institute of Technology-EPFL, Ericsson Radio * Systems AB and Canon Research Centre France S.A (collectively JJ2000 * Partners) agree not to assert against ISO/IEC and users of the JPEG * 2000 Standard (Users) any of their rights under the copyright, not * including other intellectual property rights, for this software module * with respect to the usage by ISO/IEC and Users of this software module * or modifications thereof for use in hardware or software products * claiming conformance to the JPEG 2000 Standard. Those intending to use * this software module in hardware or software products are advised that * their use may infringe existing patents. The original developers of * this software module, JJ2000 Partners and ISO/IEC assume no liability * for use of this software module or modifications thereof. No license * or right to this software module is granted for non JPEG 2000 Standard * conforming products. JJ2000 Partners have full right to use this * software module for his/her own purpose, assign or donate this * software module to any third party and to inhibit third parties from * using this software module for non JPEG 2000 Standard conforming * products. This copyright notice must be included in all copies or * derivative works of this software module. *  * Copyright (c) 1999/2000 JJ2000 Partners. * */package jj2000.j2k.wavelet.synthesis;import jj2000.j2k.quantization.dequantizer.*;import jj2000.j2k.wavelet.*;import jj2000.j2k.decoder.*;import jj2000.j2k.image.*;import jj2000.j2k.util.*;import jj2000.j2k.*;/** * This abstract class extends the WaveletTransform one with the specifics of * inverse wavelet transforms. * * <p>The image can be reconstructed at different resolution levels. This is * controlled by the setResLevel() method. All the image, tile and component * dimensions are relative the the resolution level being used. The number of * resolution levels indicates the number of wavelet recompositions that will * be used, if it is equal as the number of decomposition levels then the full * resolution image is reconstructed.</p> * * <p>It is assumed in this class that all tiles and components the same * reconstruction resolution level. If that where not the case the * implementing class should have additional data structures to store those * values for each tile. However, the 'recResLvl' member variable always * contain the values applicable to the current tile, since many methods * implemented here rely on them.</p> * */public abstract class InverseWT extends InvWTAdapter implements BlkImgDataSrc {    /**     * Initializes this object with the given source of wavelet     * coefficients. It initializes the resolution level for full resolutioin     * reconstruction (i.e. the maximum resolution available from the 'src'     * source).     *     * <p>It is assumed here that all tiles and components have the same     * reconstruction resolution level. If that was not the case it should be     * the value for the current tile of the source.</p>     *     * @param src from where the wavelet coefficinets should be obtained.     *     * @param decSpec The decoder specifications     * */    public InverseWT(MultiResImgData src,DecoderSpecs decSpec){        super(src,decSpec);    }        /**     * Creates an InverseWT object that works on the data type of the source,     * with the special additional parameters from the parameter     * list. Currently the parameter list is ignored since no special     * parameters can be specified for the inverse wavelet transform yet.     *     * @param src The source of data for the inverse wavelet     * transform.     *     * @param pl The parameter list containing parameters applicable to the     * inverse wavelet transform (other parameters can also be present).     * */    public static InverseWT createInstance(CBlkWTDataSrcDec src,                                           DecoderSpecs decSpec) {        // full page wavelet transform        return new InvWTFull(src,decSpec);    }}