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1 /**
2 * @brief Adaptive logarithmic tone mapping
3 *
4 * Adaptive logarithmic mapping for displaying high contrast
5 * scenes.
6 * F. Drago, K. Myszkowski, T. Annen, and N. Chiba. In Eurographics 2003.
7 *
8 * This file is a part of PFSTMO package.
9 * ----------------------------------------------------------------------
10 * Copyright (C) 2003,2004 Grzegorz Krawczyk
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 * ----------------------------------------------------------------------
26 *
27 * @author Grzegorz Krawczyk, <krawczyk@mpi-inf.mpg.de>
28 *
29 * $Id: pfstmo_drago03.cpp,v 1.4 2009/04/15 11:49:32 julians37 Exp $
30 */
31
32 #include <config.h>
33
34 #include <iostream>
35 #include <stdio.h>
36 #include <stdlib.h>
37 #include <getopt.h>
38 #include <math.h>
39
40 #include <pfs.h>
41
42 #include "tmo_drago03.h"
43
44 #define PROG_NAME "pfstmo_drago03"
45
46 using namespace std;
47
48 class QuietException
49 {
50 };
51
52
53 void printHelp()
54 {
55 fprintf( stderr, PROG_NAME " (" PACKAGE_VERSION ") : \n"
56 "\t [--bias <val>] [--verbose] [--help] \n"
57 "See man page for more information. \n" );
58 }
59
60 void tmo_drago03( int argc, char* argv[] )
61 {
62 pfs::DOMIO pfsio;
63
64 //--- default tone mapping parameters;
65 float biasValue = 0.85f;
66
67 //--- process command line args
68 bool verbose = false;
69
70 static struct option cmdLineOptions[] = {
71 { "help", no_argument, NULL, 'h' },
72 { "verbose", no_argument, NULL, 'v' },
73 { "bias", required_argument, NULL, 'b' },
74 { NULL, 0, NULL, 0 }
75 };
76
77 int optionIndex = 0;
78 while( 1 ) {
79 int c = getopt_long (argc, argv, "vhb:", cmdLineOptions, &optionIndex);
80 if( c == -1 ) break;
81 switch( c ) {
82 case 'h':
83 printHelp();
84 throw QuietException();
85 case 'v':
86 verbose = true;
87 break;
88 case 'b':
89 biasValue = (float)strtod( optarg, NULL );
90 if( biasValue<0.0f || biasValue>1.0f )
91 throw pfs::Exception("incorrect bias value, accepted range is (0..1)");
92 break;
93 case '?':
94 throw QuietException();
95 case ':':
96 throw QuietException();
97 }
98 }
99
100 VERBOSE_STR << ": bias: " << biasValue << endl;
101
102 while( true ) {
103 pfs::Frame *frame = pfsio.readFrame( stdin );
104 if( frame == NULL ) break; // No more frames
105
106 pfs::Channel *X, *Y, *Z;
107 frame->getXYZChannels( X, Y, Z );
108 frame->getTags()->setString("LUMINANCE", "RELATIVE");
109 //---
110
111 if( Y == NULL )
112 throw pfs::Exception( "Missing X, Y, Z channels in the PFS stream" );
113
114 int w = Y->getCols();
115 int h = Y->getRows();
116
117 float maxLum,avLum;
118 calculateLuminance( w, h, Y->getRawData(), avLum, maxLum );
119 VERBOSE_STR << ": maximum luminance: " << maxLum << endl;
120 VERBOSE_STR << ": average luminance: " << avLum << endl;
121
122 pfs::Array2DImpl* L = new pfs::Array2DImpl(w,h);
123 tmo_drago03(w, h, Y->getRawData(), L->getRawData(), maxLum, avLum, biasValue);
124
125 for( int y=0 ; y<h ; y++ )
126 {
127 for( int x=0 ; x<w ; x++ )
128 {
129 float scale = (*L)(x,y) / (*Y)(x,y);
130 (*Y)(x,y) *= scale;
131 (*X)(x,y) *= scale;
132 (*Z)(x,y) *= scale;
133 }
134 }
135
136 delete L;
137
138 //---
139 pfsio.writeFrame( frame, stdout );
140 pfsio.freeFrame( frame );
141 }
142 }
143
144
145 int main( int argc, char* argv[] )
146 {
147 try {
148 tmo_drago03( argc, argv );
149 }
150 catch( pfs::Exception ex ) {
151 fprintf( stderr, PROG_NAME " error: %s\n", ex.getMessage() );
152 return EXIT_FAILURE;
153 }
154 catch( QuietException ) {
155 return EXIT_FAILURE;
156 }
157 return EXIT_SUCCESS;
158 }