/* * CVS identifier: * * $Id: AnWTFilterFloat.java,v 1.1.1.1 2002/07/22 09:26:54 grosbois Exp $ * * Class:                   AnWTFilterFloat * * Description:             A specialized wavelet filter interface that *                          works on float data. * * * * 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.analysis;import jj2000.j2k.wavelet.*;import jj2000.j2k.image.*;/** * This extends the analysis wavelet filter general definitions of * AnWTFilter by adding methods that work for float data * specifically. Implementations that work on float data should inherit * from this class. * * <P>See the AnWTFilter class for details such as * normalization, how to split odd-length signals, etc. * * <P>The advantage of using the specialized method is that no casts * are performed. * * @see AnWTFilter * */public abstract class AnWTFilterFloat extends AnWTFilter {        /**     * A specific version of the analyze_lpf() method that works on int     * data. See the general description of the analyze_lpf() method in     * the AnWTFilter class for more details.     *     * @param inSig This is the array that contains the input     * signal.     *     * @param inOff This is the index in inSig of the first sample to     * filter.     *     * @param inLen This is the number of samples in the input signal     * to filter.     *     * @param inStep This is the step, or interleave factor, of the     * input signal samples in the inSig array.     *     * @param lowSig This is the array where the low-pass output     * signal is placed.     *     * @param lowOff This is the index in lowSig of the element where     * to put the first low-pass output sample.     *     * @param lowStep This is the step, or interleave factor, of the     * low-pass output samples in the lowSig array.     *     * @param highSig This is the array where the high-pass output     * signal is placed.     *     * @param highOff This is the index in highSig of the element where     * to put the first high-pass output sample.     *     * @param highStep This is the step, or interleave factor, of the     * high-pass output samples in the highSig array.     *     * @see AnWTFilter#analyze_lpf     *     *     *     *     * */    public abstract         void analyze_lpf(float inSig[], int inOff, int inLen, int inStep,                     float lowSig[], int lowOff, int lowStep,                     float highSig[], int highOff, int highStep);    /**     * The general version of the analyze_lpf() method, it just calls the     * specialized version. See the description of the analyze_lpf()     * method of the AnWTFilter class for more details.     *     * @param inSig This is the array that contains the input     * signal. It must be an float[].     *     * @param inOff This is the index in inSig of the first sample to     * filter.     *     * @param inLen This is the number of samples in the input signal     * to filter.     *     * @param inStep This is the step, or interleave factor, of the     * input signal samples in the inSig array.     *     * @param lowSig This is the array where the low-pass output     * signal is placed. It must be an float[].     *     * @param lowOff This is the index in lowSig of the element where     * to put the first low-pass output sample.     *     * @param lowStep This is the step, or interleave factor, of the     * low-pass output samples in the lowSig array.     *     * @param highSig This is the array where the high-pass output     * signal is placed. It must be an float[].     *     * @param highOff This is the index in highSig of the element where     * to put the first high-pass output sample.     *     * @param highStep This is the step, or interleave factor, of the     * high-pass output samples in the highSig array.     *     * @see AnWTFilter#analyze_lpf     *     *     * */    public void analyze_lpf(Object inSig, int inOff, int inLen, int inStep,                    Object lowSig, int lowOff, int lowStep,                    Object highSig, int highOff, int highStep) {                            analyze_lpf((float[])inSig, inOff, inLen, inStep,            (float[])lowSig, lowOff, lowStep,            (float[])highSig, highOff, highStep);    }                         /**     * A specific version of the analyze_hpf() method that works on int     * data. See the general description of the analyze_hpf() method in the      * AnWTFilter class for more details.     *     * @param inSig This is the array that contains the input     * signal.     *     * @param inOff This is the index in inSig of the first sample to     * filter.     *     * @param inLen This is the number of samples in the input signal     * to filter.     *     * @param inStep This is the step, or interleave factor, of the     * input signal samples in the inSig array.     *     * @param lowSig This is the array where the low-pass output     * signal is placed.     *     * @param lowOff This is the index in lowSig of the element where     * to put the first low-pass output sample.     *     * @param lowStep This is the step, or interleave factor, of the     * low-pass output samples in the lowSig array.     *     * @param highSig This is the array where the high-pass output     * signal is placed.     *     * @param highOff This is the index in highSig of the element where     * to put the first high-pass output sample.     *     * @param highStep This is the step, or interleave factor, of the     * high-pass output samples in the highSig array.     *     * @see AnWTFilter#analyze_hpf     *     *     * */            public abstract         void analyze_hpf(float inSig[], int inOff, int inLen, int inStep,                     float lowSig[], int lowOff, int lowStep,                     float highSig[], int highOff, int highStep);                /**     * The general version of the analyze_hpf() method, it just calls the     * specialized version. See the description of the analyze_hpf()     * method of the AnWTFilter class for more details.     *     * @param inSig This is the array that contains the input     * signal. It must be an float[].     *     * @param inOff This is the index in inSig of the first sample to     * filter.     *     * @param inLen This is the number of samples in the input signal     * to filter.     *     * @param inStep This is the step, or interleave factor, of the     * input signal samples in the inSig array.     *     * @param lowSig This is the array where the low-pass output     * signal is placed. It must be an float[].     *     * @param lowOff This is the index in lowSig of the element where     * to put the first low-pass output sample.     *     * @param lowStep This is the step, or interleave factor, of the     * low-pass output samples in the lowSig array.     *     * @param highSig This is the array where the high-pass output     * signal is placed. It must be an float[].     *     * @param highOff This is the index in highSig of the element where     * to put the first high-pass output sample.     *     * @param highStep This is the step, or interleave factor, of the     * high-pass output samples in the highSig array.     *     * @see AnWTFilter#analyze_hpf     *     *     * */    public void analyze_hpf(Object inSig, int inOff, int inLen, int inStep,                    Object lowSig, int lowOff, int lowStep,                    Object highSig, int highOff, int highStep) {                            analyze_hpf((float[])inSig, inOff, inLen, inStep,            (float[])lowSig, lowOff, lowStep,            (float[])highSig, highOff, highStep);    }        /**     * Returns the type of data on which this filter works, as defined     * in the DataBlk interface, which is always TYPE_FLOAT for this     * class.     *     * @return The type of data as defined in the DataBlk interface.     *     * @see jj2000.j2k.image.DataBlk     *     *     * */    public int getDataType() {        return DataBlk.TYPE_FLOAT;    }}