Mercurial > hg > orthanc
annotate Core/ImageFormats/ImageAccessor.cpp @ 1380:31b884468b05
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 29 May 2015 13:23:54 +0200 |
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1 /** |
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2 * Orthanc - A Lightweight, RESTful DICOM Store |
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3 * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, 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 #include "ImageAccessor.h" |
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35 |
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36 #include "../OrthancException.h" |
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37 #include "../ChunkedBuffer.h" |
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38 |
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39 #include <stdint.h> |
860 | 40 #include <cassert> |
861 | 41 #include <glog/logging.h> |
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42 #include <boost/lexical_cast.hpp> |
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43 |
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44 namespace Orthanc |
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45 { |
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46 template <typename PixelType> |
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47 static void ToMatlabStringInternal(ChunkedBuffer& target, |
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48 const ImageAccessor& source) |
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49 { |
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50 target.AddChunk("double([ "); |
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51 |
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52 for (unsigned int y = 0; y < source.GetHeight(); y++) |
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53 { |
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54 const PixelType* p = reinterpret_cast<const PixelType*>(source.GetConstRow(y)); |
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55 |
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56 std::string s; |
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57 if (y > 0) |
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58 { |
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59 s = "; "; |
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60 } |
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61 |
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62 s.reserve(source.GetWidth() * 8); |
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63 |
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64 for (unsigned int x = 0; x < source.GetWidth(); x++, p++) |
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65 { |
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66 s += boost::lexical_cast<std::string>(static_cast<int>(*p)) + " "; |
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67 } |
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68 |
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69 target.AddChunk(s); |
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70 } |
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71 |
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72 target.AddChunk("])"); |
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73 } |
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74 |
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75 |
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76 static void RGB24ToMatlabString(ChunkedBuffer& target, |
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77 const ImageAccessor& source) |
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78 { |
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79 assert(source.GetFormat() == PixelFormat_RGB24); |
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80 |
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81 target.AddChunk("double(permute(reshape([ "); |
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82 |
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83 for (unsigned int y = 0; y < source.GetHeight(); y++) |
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84 { |
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85 const uint8_t* p = reinterpret_cast<const uint8_t*>(source.GetConstRow(y)); |
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86 |
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87 std::string s; |
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88 s.reserve(source.GetWidth() * 3 * 8); |
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89 |
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90 for (unsigned int x = 0; x < 3 * source.GetWidth(); x++, p++) |
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91 { |
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92 s += boost::lexical_cast<std::string>(static_cast<int>(*p)) + " "; |
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93 } |
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94 |
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95 target.AddChunk(s); |
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96 } |
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97 |
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98 target.AddChunk("], [ 3 " + boost::lexical_cast<std::string>(source.GetHeight()) + |
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99 " " + boost::lexical_cast<std::string>(source.GetWidth()) + " ]), [ 3 2 1 ]))"); |
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100 } |
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101 |
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102 |
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103 void* ImageAccessor::GetBuffer() const |
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104 { |
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105 if (readOnly_) |
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106 { |
861 | 107 LOG(ERROR) << "Trying to write on a read-only image"; |
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108 throw OrthancException(ErrorCode_ReadOnly); |
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109 } |
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110 |
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111 return buffer_; |
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112 } |
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113 |
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114 |
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115 const void* ImageAccessor::GetConstRow(unsigned int y) const |
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116 { |
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117 if (buffer_ != NULL) |
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118 { |
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119 return reinterpret_cast<const uint8_t*>(buffer_) + y * pitch_; |
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120 } |
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121 else |
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122 { |
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123 return NULL; |
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124 } |
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125 } |
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126 |
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127 |
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128 void* ImageAccessor::GetRow(unsigned int y) const |
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129 { |
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130 if (readOnly_) |
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131 { |
861 | 132 LOG(ERROR) << "Trying to write on a read-only image"; |
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133 throw OrthancException(ErrorCode_ReadOnly); |
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134 } |
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135 |
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136 if (buffer_ != NULL) |
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137 { |
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138 return reinterpret_cast<uint8_t*>(buffer_) + y * pitch_; |
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139 } |
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140 else |
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141 { |
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142 return NULL; |
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143 } |
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144 } |
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145 |
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146 |
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147 void ImageAccessor::AssignEmpty(PixelFormat format) |
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148 { |
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149 readOnly_ = false; |
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150 format_ = format; |
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151 width_ = 0; |
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152 height_ = 0; |
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153 pitch_ = 0; |
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154 buffer_ = NULL; |
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155 } |
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156 |
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157 |
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158 void ImageAccessor::AssignReadOnly(PixelFormat format, |
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159 unsigned int width, |
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160 unsigned int height, |
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161 unsigned int pitch, |
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162 const void *buffer) |
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163 { |
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164 readOnly_ = true; |
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165 format_ = format; |
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166 width_ = width; |
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167 height_ = height; |
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168 pitch_ = pitch; |
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169 buffer_ = const_cast<void*>(buffer); |
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171 assert(GetBytesPerPixel() * width_ <= pitch_); |
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172 } |
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173 |
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174 |
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175 void ImageAccessor::AssignWritable(PixelFormat format, |
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176 unsigned int width, |
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177 unsigned int height, |
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178 unsigned int pitch, |
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179 void *buffer) |
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180 { |
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181 readOnly_ = false; |
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182 format_ = format; |
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183 width_ = width; |
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184 height_ = height; |
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185 pitch_ = pitch; |
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186 buffer_ = buffer; |
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188 assert(GetBytesPerPixel() * width_ <= pitch_); |
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189 } |
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190 |
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191 |
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192 void ImageAccessor::ToMatlabString(std::string& target) const |
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193 { |
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194 ChunkedBuffer buffer; |
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195 |
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196 switch (GetFormat()) |
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197 { |
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198 case PixelFormat_Grayscale8: |
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199 ToMatlabStringInternal<uint8_t>(buffer, *this); |
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200 break; |
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201 |
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202 case PixelFormat_Grayscale16: |
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203 ToMatlabStringInternal<uint16_t>(buffer, *this); |
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204 break; |
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205 |
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206 case PixelFormat_SignedGrayscale16: |
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207 ToMatlabStringInternal<int16_t>(buffer, *this); |
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208 break; |
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209 |
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210 case PixelFormat_RGB24: |
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211 RGB24ToMatlabString(buffer, *this); |
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212 break; |
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213 |
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214 default: |
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215 throw OrthancException(ErrorCode_NotImplemented); |
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216 } |
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217 |
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218 buffer.Flatten(target); |
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219 } |
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220 |
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221 } |