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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege,
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4 * Belgium
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5 *
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6 * This program is free software: you can redistribute it and/or
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7 * modify it under the terms of the GNU General Public License as
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8 * published by the Free Software Foundation, either version 3 of the
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9 * License, or (at your option) any later version.
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10 *
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11 * In addition, as a special exception, the copyright holders of this
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12 * program give permission to link the code of its release with the
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13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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14 * that use the same license as the "OpenSSL" library), and distribute
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15 * the linked executables. You must obey the GNU General Public License
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16 * in all respects for all of the code used other than "OpenSSL". If you
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17 * modify file(s) with this exception, you may extend this exception to
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18 * your version of the file(s), but you are not obligated to do so. If
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19 * you do not wish to do so, delete this exception statement from your
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20 * version. If you delete this exception statement from all source files
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21 * in the program, then also delete it here.
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22 *
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23 * This program is distributed in the hope that it will be useful, but
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24 * WITHOUT ANY WARRANTY; without even the implied warranty of
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25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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26 * General Public License for more details.
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27 *
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28 * You should have received a copy of the GNU General Public License
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29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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30 **/
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31
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32
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33 #include "../PrecompiledHeaders.h"
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34
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35 #ifndef NOMINMAX
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36 #define NOMINMAX
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37 #endif
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38
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39 #include "DicomImageInformation.h"
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40
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41 #include "../OrthancException.h"
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42 #include <boost/lexical_cast.hpp>
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43 #include <limits>
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44 #include <cassert>
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45 #include <stdio.h>
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46
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47 namespace Orthanc
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48 {
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49 DicomImageInformation::DicomImageInformation(const DicomMap& values)
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50 {
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51 unsigned int pixelRepresentation;
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52 unsigned int planarConfiguration = 0;
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53
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54 try
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55 {
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56 width_ = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_COLUMNS).AsString());
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57 height_ = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_ROWS).AsString());
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58 samplesPerPixel_ = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_SAMPLES_PER_PIXEL).AsString());
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59 bitsAllocated_ = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_BITS_ALLOCATED).AsString());
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60
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61 try
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62 {
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63 bitsStored_ = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_BITS_STORED).AsString());
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64 }
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65 catch (OrthancException&)
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66 {
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67 bitsStored_ = bitsAllocated_;
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68 }
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69
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70 try
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71 {
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72 highBit_ = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_HIGH_BIT).AsString());
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73 }
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74 catch (OrthancException&)
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75 {
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76 highBit_ = bitsStored_ - 1;
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77 }
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78
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79 try
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80 {
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81 pixelRepresentation = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_PIXEL_REPRESENTATION).AsString());
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82 }
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83 catch (OrthancException&)
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84 {
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85 pixelRepresentation = 0; // Assume unsigned pixels
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86 }
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87
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88 if (samplesPerPixel_ > 1)
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89 {
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90 // The "Planar Configuration" is only set when "Samples per Pixels" is greater than 1
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91 // https://www.dabsoft.ch/dicom/3/C.7.6.3.1.3/
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92 try
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93 {
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94 planarConfiguration = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_PLANAR_CONFIGURATION).AsString());
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95 }
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96 catch (OrthancException&)
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97 {
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98 planarConfiguration = 0; // Assume interleaved color channels
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99 }
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100 }
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101 }
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102 catch (boost::bad_lexical_cast&)
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103 {
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104 throw OrthancException(ErrorCode_NotImplemented);
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105 }
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106 catch (OrthancException&)
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107 {
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108 throw OrthancException(ErrorCode_NotImplemented);
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109 }
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110
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111 try
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112 {
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113 numberOfFrames_ = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_NUMBER_OF_FRAMES).AsString());
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114 }
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115 catch (OrthancException)
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116 {
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117 // If the tag "NumberOfFrames" is absent, assume there is a single frame
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118 numberOfFrames_ = 1;
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119 }
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120 catch (boost::bad_lexical_cast)
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121 {
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122 throw OrthancException(ErrorCode_NotImplemented);
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123 }
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124
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125 if ((bitsAllocated_ != 8 && bitsAllocated_ != 16 &&
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126 bitsAllocated_ != 24 && bitsAllocated_ != 32) ||
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127 numberOfFrames_ == 0 ||
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128 (planarConfiguration != 0 && planarConfiguration != 1))
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129 {
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130 throw OrthancException(ErrorCode_NotImplemented);
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131 }
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132
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133 if (bitsAllocated_ > 32 ||
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134 bitsStored_ >= 32)
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135 {
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136 // Not available, as the accessor internally uses int32_t values
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137 throw OrthancException(ErrorCode_NotImplemented);
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138 }
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139
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140 if (samplesPerPixel_ == 0)
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141 {
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142 throw OrthancException(ErrorCode_NotImplemented);
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143 }
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144
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145 bytesPerPixel_ = bitsAllocated_ / 8;
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146
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147 isPlanar_ = (planarConfiguration != 0 ? true : false);
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148 isSigned_ = (pixelRepresentation != 0 ? true : false);
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149 }
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150 }
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