+++ /dev/null
-/*
- * Copyright (c) 1999-2000 Image Power, Inc. and the University of
- * British Columbia.
- * Copyright (c) 2001-2003 Michael David Adams.
- * All rights reserved.
- */
-
-/* __START_OF_JASPER_LICENSE__
- *
- * JasPer License Version 2.0
- *
- * Copyright (c) 1999-2000 Image Power, Inc.
- * Copyright (c) 1999-2000 The University of British Columbia
- * Copyright (c) 2001-2003 Michael David Adams
- *
- * All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person (the
- * "User") obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without restriction,
- * including without limitation the rights to use, copy, modify, merge,
- * publish, distribute, and/or sell copies of the Software, and to permit
- * persons to whom the Software is furnished to do so, subject to the
- * following conditions:
- *
- * 1. The above copyright notices and this permission notice (which
- * includes the disclaimer below) shall be included in all copies or
- * substantial portions of the Software.
- *
- * 2. The name of a copyright holder shall not be used to endorse or
- * promote products derived from the Software without specific prior
- * written permission.
- *
- * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS
- * LICENSE. NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
- * THIS DISCLAIMER. THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS
- * "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
- * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
- * PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO
- * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
- * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
- * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
- * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
- * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. NO ASSURANCES ARE
- * PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE
- * THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY.
- * EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS
- * BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL
- * PROPERTY RIGHTS OR OTHERWISE. AS A CONDITION TO EXERCISING THE RIGHTS
- * GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE
- * ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY. THE SOFTWARE
- * IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL
- * SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES,
- * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL
- * SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH
- * THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH,
- * PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH
- * RISK ACTIVITIES"). THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY
- * EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.
- *
- * __END_OF_JASPER_LICENSE__
- */
-
-/*
- * Multicomponent Transform Code
- *
- * $Id: jpc_mct.c,v 1.1 2005/05/22 18:33:04 malaterre Exp $
- */
-
-/******************************************************************************\
-* Includes.
-\******************************************************************************/
-
-#include <assert.h>
-
-#include "jasper/jas_seq.h"
-
-#include "jpc_fix.h"
-#include "jpc_mct.h"
-
-/******************************************************************************\
-* Code.
-\******************************************************************************/
-
-/* Compute the forward RCT. */
-
-void jpc_rct(jas_matrix_t *c0, jas_matrix_t *c1, jas_matrix_t *c2)
-{
- int numrows;
- int numcols;
- int i;
- int j;
- jpc_fix_t *c0p;
- jpc_fix_t *c1p;
- jpc_fix_t *c2p;
-
- numrows = jas_matrix_numrows(c0);
- numcols = jas_matrix_numcols(c0);
-
- /* All three matrices must have the same dimensions. */
- assert(jas_matrix_numrows(c1) == numrows && jas_matrix_numcols(c1) == numcols
- && jas_matrix_numrows(c2) == numrows && jas_matrix_numcols(c2) == numcols);
-
- for (i = 0; i < numrows; i++) {
- c0p = jas_matrix_getref(c0, i, 0);
- c1p = jas_matrix_getref(c1, i, 0);
- c2p = jas_matrix_getref(c2, i, 0);
- for (j = numcols; j > 0; --j) {
- int r;
- int g;
- int b;
- int y;
- int u;
- int v;
- r = *c0p;
- g = *c1p;
- b = *c2p;
- y = (r + (g << 1) + b) >> 2;
- u = b - g;
- v = r - g;
- *c0p++ = y;
- *c1p++ = u;
- *c2p++ = v;
- }
- }
-}
-
-/* Compute the inverse RCT. */
-
-void jpc_irct(jas_matrix_t *c0, jas_matrix_t *c1, jas_matrix_t *c2)
-{
- int numrows;
- int numcols;
- int i;
- int j;
- jpc_fix_t *c0p;
- jpc_fix_t *c1p;
- jpc_fix_t *c2p;
-
- numrows = jas_matrix_numrows(c0);
- numcols = jas_matrix_numcols(c0);
-
- /* All three matrices must have the same dimensions. */
- assert(jas_matrix_numrows(c1) == numrows && jas_matrix_numcols(c1) == numcols
- && jas_matrix_numrows(c2) == numrows && jas_matrix_numcols(c2) == numcols);
-
- for (i = 0; i < numrows; i++) {
- c0p = jas_matrix_getref(c0, i, 0);
- c1p = jas_matrix_getref(c1, i, 0);
- c2p = jas_matrix_getref(c2, i, 0);
- for (j = numcols; j > 0; --j) {
- int r;
- int g;
- int b;
- int y;
- int u;
- int v;
- y = *c0p;
- u = *c1p;
- v = *c2p;
- g = y - ((u + v) >> 2);
- r = v + g;
- b = u + g;
- *c0p++ = r;
- *c1p++ = g;
- *c2p++ = b;
- }
- }
-}
-
-void jpc_ict(jas_matrix_t *c0, jas_matrix_t *c1, jas_matrix_t *c2)
-{
- int numrows;
- int numcols;
- int i;
- int j;
- jpc_fix_t r;
- jpc_fix_t g;
- jpc_fix_t b;
- jpc_fix_t y;
- jpc_fix_t u;
- jpc_fix_t v;
- jpc_fix_t *c0p;
- jpc_fix_t *c1p;
- jpc_fix_t *c2p;
-
- numrows = jas_matrix_numrows(c0);
- assert(jas_matrix_numrows(c1) == numrows && jas_matrix_numrows(c2) == numrows);
- numcols = jas_matrix_numcols(c0);
- assert(jas_matrix_numcols(c1) == numcols && jas_matrix_numcols(c2) == numcols);
- for (i = 0; i < numrows; ++i) {
- c0p = jas_matrix_getref(c0, i, 0);
- c1p = jas_matrix_getref(c1, i, 0);
- c2p = jas_matrix_getref(c2, i, 0);
- for (j = numcols; j > 0; --j) {
- r = *c0p;
- g = *c1p;
- b = *c2p;
- y = jpc_fix_add3(jpc_fix_mul(jpc_dbltofix(0.299), r), jpc_fix_mul(jpc_dbltofix(0.587), g),
- jpc_fix_mul(jpc_dbltofix(0.114), b));
- u = jpc_fix_add3(jpc_fix_mul(jpc_dbltofix(-0.16875), r), jpc_fix_mul(jpc_dbltofix(-0.33126), g),
- jpc_fix_mul(jpc_dbltofix(0.5), b));
- v = jpc_fix_add3(jpc_fix_mul(jpc_dbltofix(0.5), r), jpc_fix_mul(jpc_dbltofix(-0.41869), g),
- jpc_fix_mul(jpc_dbltofix(-0.08131), b));
- *c0p++ = y;
- *c1p++ = u;
- *c2p++ = v;
- }
- }
-}
-
-void jpc_iict(jas_matrix_t *c0, jas_matrix_t *c1, jas_matrix_t *c2)
-{
- int numrows;
- int numcols;
- int i;
- int j;
- jpc_fix_t r;
- jpc_fix_t g;
- jpc_fix_t b;
- jpc_fix_t y;
- jpc_fix_t u;
- jpc_fix_t v;
- jpc_fix_t *c0p;
- jpc_fix_t *c1p;
- jpc_fix_t *c2p;
-
- numrows = jas_matrix_numrows(c0);
- assert(jas_matrix_numrows(c1) == numrows && jas_matrix_numrows(c2) == numrows);
- numcols = jas_matrix_numcols(c0);
- assert(jas_matrix_numcols(c1) == numcols && jas_matrix_numcols(c2) == numcols);
- for (i = 0; i < numrows; ++i) {
- c0p = jas_matrix_getref(c0, i, 0);
- c1p = jas_matrix_getref(c1, i, 0);
- c2p = jas_matrix_getref(c2, i, 0);
- for (j = numcols; j > 0; --j) {
- y = *c0p;
- u = *c1p;
- v = *c2p;
- r = jpc_fix_add(y, jpc_fix_mul(jpc_dbltofix(1.402), v));
- g = jpc_fix_add3(y, jpc_fix_mul(jpc_dbltofix(-0.34413), u),
- jpc_fix_mul(jpc_dbltofix(-0.71414), v));
- b = jpc_fix_add(y, jpc_fix_mul(jpc_dbltofix(1.772), u));
- *c0p++ = r;
- *c1p++ = g;
- *c2p++ = b;
- }
- }
-}
-
-jpc_fix_t jpc_mct_getsynweight(int mctid, int cmptno)
-{
- jpc_fix_t synweight;
-
- synweight = JPC_FIX_ONE;
- switch (mctid) {
- case JPC_MCT_RCT:
- switch (cmptno) {
- case 0:
- synweight = jpc_dbltofix(sqrt(3.0));
- break;
- case 1:
- synweight = jpc_dbltofix(sqrt(0.6875));
- break;
- case 2:
- synweight = jpc_dbltofix(sqrt(0.6875));
- break;
- }
- break;
- case JPC_MCT_ICT:
- switch (cmptno) {
- case 0:
- synweight = jpc_dbltofix(sqrt(3.0000));
- break;
- case 1:
- synweight = jpc_dbltofix(sqrt(3.2584));
- break;
- case 2:
- synweight = jpc_dbltofix(sqrt(2.4755));
- break;
- }
- break;
-#if 0
- default:
- synweight = JPC_FIX_ONE;
- break;
-#endif
- }
-
- return synweight;
-}
git://git.creatis.insa-lyon.fr / gdcm.git / blobdiff