/*================================================================================================*\ || || || /$$$$$$$ /$$ /$$ /$$ /$$ || || | $$__ $$|__/ | $$ /$ | $$| $$ || || | $$ \ $$ /$$ /$$$$$$ | $$ /$$$| $$| $$$$$$$ /$$$$$$ /$$$$$$ /$$$$$$ || || | $$$$$$$ | $$ /$$__ $$ | $$/$$ $$ $$| $$__ $$ /$$__ $$ /$$__ $$ /$$__ $$ || || | $$__ $$| $$| $$ \ $$ | $$$$_ $$$$| $$ \ $$| $$ \ $$| $$ \ $$| $$ \ $$ || || | $$ \ $$| $$| $$ | $$ | $$$/ \ $$$| $$ | $$| $$ | $$| $$ | $$| $$ | $$ || || | $$$$$$$/| $$| $$$$$$$ | $$/ \ $$| $$ | $$| $$$$$$/| $$$$$$/| $$$$$$$/ || || |_______/ |__/ \____ $$ |__/ \__/|__/ |__/ \______/ \______/ | $$____/ || || /$$ \ $$ | $$ || || | $$$$$$/ | $$ || || \______/ |__/ || || || || DESCRIPTION: || || ------------ || || || || This file describes a set of functions that can be used to performe the forward/ || || inverse discrete wavelet transform on 1- to 4-dimensional IEEE 754 data-sets. || || For more information please refere to JPEG2000 by D. S. Taubman and M. W. || || Marcellin. || || || || -------------------------------------------------------------------------------------------- || || Copyright (c) 2023, High Performance Computing Center - University of Stuttgart || || || || 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 HOLDER 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. || || || \*================================================================================================*/ #ifndef DWT_H #define DWT_H /************************************************************************************************\ || _ _ _ ____ _ _ _ ___ ____ || || | |\ | | | | | | \ |___ || || | | \| |___ |___ |__| |__/ |___ || || || \************************************************************************************************/ #include "types.h" /************************************************************************************************\ || _ _ ____ ____ ____ ____ ____ || || |\/| |__| | |__/ | | [__ || || | | | | |___ | \ |__| ___] || || || \************************************************************************************************/ /*----------------------------------------------------------------------------------------------*\ ! ! ! DESCRIPTION: ! ! ------------ ! ! ! ! Maximum number of wavelet layers for which the energy gain is calculated. ! ! ! \*----------------------------------------------------------------------------------------------*/ #define MAX_DECOMP_LEVELS 4 /*----------------------------------------------------------------------------------------------*\ ! ! ! DESCRIPTION: ! ! ------------ ! ! ! ! These macros define the irrational coefficients for the high and low pass ! ! synthesis filters associated with the (9-7) Cohen-Daubechies-Feauveau-Wavelet ! ! as well as the coefficients for its coressponding lifting scheme. ! ! ! \*----------------------------------------------------------------------------------------------*/ #define DWT_9X7_H0 1.115087052457000f // Low pass synthesis filter ... #define DWT_9X7_H1 0.591271763114250f // ... coefficients #define DWT_9X7_H2 -0.057543526228500f #define DWT_9X7_H3 -0.091271763114250f #define DWT_9X7_G0 1.205898036472721f // High pass synthesis filter ... #define DWT_9X7_G1 -0.533728236885750f // ... coefficients #define DWT_9X7_G2 -0.156446533057980f #define DWT_9X7_G3 0.033728236885750f #define DWT_9X7_G4 0.053497514821620f #define ALPHA -1.586134342059924f // Lifting coefficients. #define BETA -0.052980118572961f #define GAMMA 0.882911075530934f #define DELTA 0.360523644801462f #define KAPPA_H 1.230174104914001f #define KAPPA_L 0.812893066115961f /*----------------------------------------------------------------------------------------------*\ ! ! ! DESCRIPTION: ! ! ------------ ! ! ! ! These macros define the irrational coefficients for the high and low pass ! ! synthesis filters associated with the (5-3) LeGall-Wavelet. ! ! ! \*----------------------------------------------------------------------------------------------*/ #define DWT_5X3_H0 1.0f // Low pass synthesis filter ... #define DWT_5X3_H1 0.5f // ... coefficients #define DWT_5X3_G0 0.75f // High pass synthesis filter #define DWT_5X3_G1 -0.25f // ... coefficients #define DWT_5X3_G2 -0.125f /*----------------------------------------------------------------------------------------------*\ ! ! ! DESCRIPTION: ! ! ------------ ! ! ! ! These macros define the irrational coefficients for the high and low pass ! ! synthesis filters associated with the Haar-Wavelet. ! ! ! \*----------------------------------------------------------------------------------------------*/ #define DWT_HAAR_H0 1 // Low pass synthesis filter ... #define DWT_HAAR_H1 1 // ... coefficients #define DWT_HAAR_G0 0.5 // High pass synthesis filter ... #define DWT_HAAR_G1 -0.5 // ... coefficients /************************************************************************************************\ || ____ _ _ ___ ____ ____ _ _ ____ _ _ _ ____ ____ _ ____ ___ _ ____ ____ || || |___ \/ | |___ |__/ |\ | |__| | | | |__| |__/ | |__| |__] | |___ [__ || || |___ _/\_ | |___ | \ | \| | | |___ \/ | | | \ | | | |__] |___ |___ ___] || || || \************************************************************************************************/ /*----------------------------------------------------------------------------------------------*\ ! ! ! DESCRIPTION: ! ! ------------ ! ! ! ! This array defines a lookup table used to store the energy gain factors for the ! ! one dimensional CDF(9/7), LeGall-(5/3) and Haar wavelet transform. Each LUT ! ! contains energy gain factors for the 6 low-pass and 6 high-pass decomposition ! ! including level zero. ! ! ! \*----------------------------------------------------------------------------------------------*/ extern double DWT_ENERGY_GAIN_LUT[3][2 * MAX_DECOMP_LEVELS + 2]; /************************************************************************************************\ || ___ _ _ ___ _ _ ____ ____ _ _ _ _ ____ ___ _ ____ _ _ ____ || || |__] | | |__] | | | |___ | | |\ | | | | | | |\ | [__ || || | |__| |__] |___ | |___ | |__| | \| |___ | | |__| | \| ___] || || || \************************************************************************************************/ uchar initialize_gain_lut (); //==========|==========================|======================|======|=======|==================== bwc_float get_dwt_energy_gain (bwc_codec *const codec, uchar const highband_flag, uint16 const level); //==========|==========================|======================|======|=======|==================== uchar forward_wavelet_transform (bwc_codec *const codec, bwc_parameter *const parameter); //==========|==========================|======================|======|=======|==================== uchar inverse_wavelet_transform (bwc_codec *const codec, bwc_parameter *const parameter); #endif