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/*
* Copyright (c) 2001-2002, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2002-2003, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "tcd.h"
#ifndef __DWT_H
#define __DWT_H
/*
* Apply a reversible DWT transform to a component of an image
* a: samples of the component
* w: width of the component
* h: height of the component
* l: number of decomposition levels in the DWT
*/
/* void dwt_encode(int* a, int w, int h, int l); */
void dwt_encode(int *a, int w, int h, tcd_tilecomp_t * tilec, int l);
/*
* Apply a reversible inverse DWT transform to a component of an image
* a: samples of the component
* w: width of the component
* h: height of the component
* l: number of decomposition levels in the DWT
*/
void dwt_decode(int *a, int w, int h, tcd_tilecomp_t * tilec, int l,
tcd_tilecomp_t * row_tilec, tcd_tilecomp_t * col_tilec);
/* void dwt_decode(int* a, int w, int h,tcd_tilecomp_t *tilec, int l); */
/*
* Get the gain of a subband for the reversible DWT
* orient: number that identifies the subband (0->LL, 1->HL, 2->LH, 3->HH)
*/
int dwt_getgain(int orient);
/*
* Get the norm of a wavelet function of a subband at a specified level for the reversible DWT
* level: level of the wavelet function
* orient: band of the wavelet function
*/
double dwt_getnorm(int level, int orient);
/*
* Apply an irreversible DWT transform to a component of an image
* a: samples of the component
* w: width of the component
* h: height of the component
* l: number of decomposition levels in the DWT
*/
void dwt_encode_real(int *a, int w, int h, tcd_tilecomp_t * tilec, int l);
/*
* Apply an irreversible inverse DWT transform to a component of an image
* a: samples of the component
* w: width of the component
* h: height of the component
* l: number of decomposition levels in the DWT
*/
void dwt_decode_real(int *a, int w, int h, tcd_tilecomp_t * tilec, int l,
tcd_tilecomp_t * row_tilec,
tcd_tilecomp_t * col_tilec);
/*
* Get the gain of a subband for the irreversible DWT
* orient: number that identifies the subband (0->LL, 1->HL, 2->LH, 3->HH)
*/
int dwt_getgain_real(int orient);
/*
* Get the norm of a wavelet function of a subband at a specified level for the irreversible DWT
* level: level of the wavelet function
* orient: band of the wavelet function
*/
double dwt_getnorm_real(int level, int orient);
#endif
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