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Open Source Computer Vision Library
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288 lines
9.4 KiB
288 lines
9.4 KiB
/* |
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* Copyright (c) 1999-2000 Image Power, Inc. and the University of |
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* British Columbia. |
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* Copyright (c) 2001-2004 Michael David Adams. |
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* All rights reserved. |
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*/ |
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/* __START_OF_JASPER_LICENSE__ |
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* |
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* JasPer License Version 2.0 |
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* |
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* Copyright (c) 2001-2006 Michael David Adams |
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* Copyright (c) 1999-2000 Image Power, Inc. |
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* Copyright (c) 1999-2000 The University of British Columbia |
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* |
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* All rights reserved. |
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* |
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* Permission is hereby granted, free of charge, to any person (the |
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* "User") obtaining a copy of this software and associated documentation |
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* files (the "Software"), to deal in the Software without restriction, |
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* including without limitation the rights to use, copy, modify, merge, |
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* publish, distribute, and/or sell copies of the Software, and to permit |
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* persons to whom the Software is furnished to do so, subject to the |
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* following conditions: |
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* |
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* 1. The above copyright notices and this permission notice (which |
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* includes the disclaimer below) shall be included in all copies or |
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* substantial portions of the Software. |
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* |
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* 2. The name of a copyright holder shall not be used to endorse or |
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* promote products derived from the Software without specific prior |
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* written permission. |
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* |
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* THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS |
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* LICENSE. NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER |
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* THIS DISCLAIMER. THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS |
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* "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING |
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* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A |
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* PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO |
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL |
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* INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING |
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* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, |
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* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION |
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* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. NO ASSURANCES ARE |
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* PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE |
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* THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY. |
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* EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS |
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* BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL |
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* PROPERTY RIGHTS OR OTHERWISE. AS A CONDITION TO EXERCISING THE RIGHTS |
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* GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE |
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* ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY. THE SOFTWARE |
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* IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL |
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* SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES, |
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* AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL |
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* SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH |
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* THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH, |
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* PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH |
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* RISK ACTIVITIES"). THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY |
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* EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES. |
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* |
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* __END_OF_JASPER_LICENSE__ |
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*/ |
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/* |
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* Tree-Structured Filter Bank (TSFB) Library |
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* |
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* $Id: jpc_tsfb.c,v 1.2 2008-05-26 09:40:52 vp153 Exp $ |
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*/ |
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/******************************************************************************\ |
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* Includes. |
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\******************************************************************************/ |
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#include <assert.h> |
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#include "jasper/jas_malloc.h" |
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#include "jasper/jas_seq.h" |
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#include "jpc_tsfb.h" |
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#include "jpc_cod.h" |
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#include "jpc_cs.h" |
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#include "jpc_util.h" |
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#include "jpc_math.h" |
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void jpc_tsfb_getbands2(jpc_tsfb_t *tsfb, int locxstart, int locystart, |
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int xstart, int ystart, int xend, int yend, jpc_tsfb_band_t **bands, |
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int numlvls); |
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/******************************************************************************\ |
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* |
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\******************************************************************************/ |
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jpc_tsfb_t *jpc_cod_gettsfb(int qmfbid, int numlvls) |
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{ |
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jpc_tsfb_t *tsfb; |
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if (!(tsfb = malloc(sizeof(jpc_tsfb_t)))) |
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return 0; |
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if (numlvls > 0) { |
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switch (qmfbid) { |
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case JPC_COX_INS: |
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tsfb->qmfb = &jpc_ns_qmfb2d; |
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break; |
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default: |
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case JPC_COX_RFT: |
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tsfb->qmfb = &jpc_ft_qmfb2d; |
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break; |
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} |
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} else { |
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tsfb->qmfb = 0; |
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} |
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tsfb->numlvls = numlvls; |
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return tsfb; |
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} |
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void jpc_tsfb_destroy(jpc_tsfb_t *tsfb) |
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{ |
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free(tsfb); |
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} |
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int jpc_tsfb_analyze(jpc_tsfb_t *tsfb, jas_seq2d_t *a) |
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{ |
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return (tsfb->numlvls > 0) ? jpc_tsfb_analyze2(tsfb, jas_seq2d_getref(a, |
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jas_seq2d_xstart(a), jas_seq2d_ystart(a)), jas_seq2d_xstart(a), |
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jas_seq2d_ystart(a), jas_seq2d_width(a), |
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jas_seq2d_height(a), jas_seq2d_rowstep(a), tsfb->numlvls - 1) : 0; |
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} |
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int jpc_tsfb_analyze2(jpc_tsfb_t *tsfb, int *a, int xstart, int ystart, |
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int width, int height, int stride, int numlvls) |
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{ |
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if (width > 0 && height > 0) { |
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if ((*tsfb->qmfb->analyze)(a, xstart, ystart, width, height, stride)) |
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return -1; |
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if (numlvls > 0) { |
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if (jpc_tsfb_analyze2(tsfb, a, JPC_CEILDIVPOW2(xstart, |
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1), JPC_CEILDIVPOW2(ystart, 1), JPC_CEILDIVPOW2( |
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xstart + width, 1) - JPC_CEILDIVPOW2(xstart, 1), |
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JPC_CEILDIVPOW2(ystart + height, 1) - |
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JPC_CEILDIVPOW2(ystart, 1), stride, numlvls - 1)) { |
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return -1; |
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} |
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} |
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} |
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return 0; |
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} |
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int jpc_tsfb_synthesize(jpc_tsfb_t *tsfb, jas_seq2d_t *a) |
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{ |
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return (tsfb->numlvls > 0) ? jpc_tsfb_synthesize2(tsfb, |
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jas_seq2d_getref(a, jas_seq2d_xstart(a), jas_seq2d_ystart(a)), |
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jas_seq2d_xstart(a), jas_seq2d_ystart(a), jas_seq2d_width(a), |
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jas_seq2d_height(a), jas_seq2d_rowstep(a), tsfb->numlvls - 1) : 0; |
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} |
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int jpc_tsfb_synthesize2(jpc_tsfb_t *tsfb, int *a, int xstart, int ystart, |
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int width, int height, int stride, int numlvls) |
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{ |
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if (numlvls > 0) { |
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if (jpc_tsfb_synthesize2(tsfb, a, JPC_CEILDIVPOW2(xstart, 1), |
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JPC_CEILDIVPOW2(ystart, 1), JPC_CEILDIVPOW2(xstart + width, |
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1) - JPC_CEILDIVPOW2(xstart, 1), JPC_CEILDIVPOW2(ystart + |
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height, 1) - JPC_CEILDIVPOW2(ystart, 1), stride, numlvls - |
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1)) { |
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return -1; |
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} |
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} |
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if (width > 0 && height > 0) { |
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if ((*tsfb->qmfb->synthesize)(a, xstart, ystart, width, height, stride)) { |
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return -1; |
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} |
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} |
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return 0; |
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} |
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int jpc_tsfb_getbands(jpc_tsfb_t *tsfb, uint_fast32_t xstart, |
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uint_fast32_t ystart, uint_fast32_t xend, uint_fast32_t yend, |
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jpc_tsfb_band_t *bands) |
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{ |
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jpc_tsfb_band_t *band; |
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band = bands; |
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if (tsfb->numlvls > 0) { |
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jpc_tsfb_getbands2(tsfb, xstart, ystart, xstart, ystart, xend, yend, |
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&band, tsfb->numlvls); |
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} else { |
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band->xstart = xstart; |
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band->ystart = ystart; |
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band->xend = xend; |
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band->yend = yend; |
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band->locxstart = xstart; |
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band->locystart = ystart; |
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band->locxend = band->locxstart + band->xend - band->xstart; |
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band->locyend = band->locystart + band->yend - band->ystart; |
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band->orient = JPC_TSFB_LL; |
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band->synenergywt = JPC_FIX_ONE; |
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++band; |
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} |
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return band - bands; |
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} |
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void jpc_tsfb_getbands2(jpc_tsfb_t *tsfb, int locxstart, int locystart, |
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int xstart, int ystart, int xend, int yend, jpc_tsfb_band_t **bands, |
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int numlvls) |
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{ |
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int newxstart; |
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int newystart; |
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int newxend; |
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int newyend; |
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jpc_tsfb_band_t *band; |
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newxstart = JPC_CEILDIVPOW2(xstart, 1); |
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newystart = JPC_CEILDIVPOW2(ystart, 1); |
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newxend = JPC_CEILDIVPOW2(xend, 1); |
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newyend = JPC_CEILDIVPOW2(yend, 1); |
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if (numlvls > 0) { |
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jpc_tsfb_getbands2(tsfb, locxstart, locystart, newxstart, newystart, |
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newxend, newyend, bands, numlvls - 1); |
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band = *bands; |
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band->xstart = JPC_FLOORDIVPOW2(xstart, 1); |
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band->ystart = newystart; |
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band->xend = JPC_FLOORDIVPOW2(xend, 1); |
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band->yend = newyend; |
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band->locxstart = locxstart + newxend - newxstart; |
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band->locystart = locystart; |
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band->locxend = band->locxstart + band->xend - band->xstart; |
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band->locyend = band->locystart + band->yend - band->ystart; |
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band->orient = JPC_TSFB_HL; |
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band->synenergywt = jpc_dbltofix(tsfb->qmfb->hpenergywts[ |
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tsfb->numlvls - numlvls] * tsfb->qmfb->lpenergywts[ |
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tsfb->numlvls - numlvls]); |
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++(*bands); |
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band = *bands; |
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band->xstart = newxstart; |
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band->ystart = JPC_FLOORDIVPOW2(ystart, 1); |
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band->xend = newxend; |
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band->yend = JPC_FLOORDIVPOW2(yend, 1); |
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band->locxstart = locxstart; |
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band->locystart = locystart + newyend - newystart; |
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band->locxend = band->locxstart + band->xend - band->xstart; |
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band->locyend = band->locystart + band->yend - band->ystart; |
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band->orient = JPC_TSFB_LH; |
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band->synenergywt = jpc_dbltofix(tsfb->qmfb->lpenergywts[ |
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tsfb->numlvls - numlvls] * tsfb->qmfb->hpenergywts[ |
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tsfb->numlvls - numlvls]); |
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++(*bands); |
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band = *bands; |
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band->xstart = JPC_FLOORDIVPOW2(xstart, 1); |
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band->ystart = JPC_FLOORDIVPOW2(ystart, 1); |
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band->xend = JPC_FLOORDIVPOW2(xend, 1); |
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band->yend = JPC_FLOORDIVPOW2(yend, 1); |
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band->locxstart = locxstart + newxend - newxstart; |
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band->locystart = locystart + newyend - newystart; |
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band->locxend = band->locxstart + band->xend - band->xstart; |
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band->locyend = band->locystart + band->yend - band->ystart; |
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band->orient = JPC_TSFB_HH; |
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band->synenergywt = jpc_dbltofix(tsfb->qmfb->hpenergywts[ |
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tsfb->numlvls - numlvls] * tsfb->qmfb->hpenergywts[ |
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tsfb->numlvls - numlvls]); |
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++(*bands); |
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} else { |
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band = *bands; |
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band->xstart = xstart; |
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band->ystart = ystart; |
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band->xend = xend; |
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band->yend = yend; |
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band->locxstart = locxstart; |
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band->locystart = locystart; |
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band->locxend = band->locxstart + band->xend - band->xstart; |
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band->locyend = band->locystart + band->yend - band->ystart; |
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band->orient = JPC_TSFB_LL; |
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band->synenergywt = jpc_dbltofix(tsfb->qmfb->lpenergywts[ |
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tsfb->numlvls - numlvls - 1] * tsfb->qmfb->lpenergywts[ |
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tsfb->numlvls - numlvls - 1]); |
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++(*bands); |
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} |
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}
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