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annotate RenderingPlugin/Sources/Plugin.cpp @ 1883:fba6e550e0ee

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apply rescale slope/intercept in rendering plugin
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 12 Jan 2022 18:26:05 +0100
parents 4e80b8afd0da
children 0c6923982fdd
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1 /**
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2 * Stone of Orthanc
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2022 Osimis S.A., Belgium
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6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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7 *
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8 * This program is free software: you can redistribute it and/or
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9 * modify it under the terms of the GNU General Public License as
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10 * published by the Free Software Foundation, either version 3 of the
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11 * License, or (at your option) any later version.
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12 *
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13 * This program is distributed in the hope that it will be useful, but
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 * General Public License for more details.
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17 *
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18 * You should have received a copy of the GNU General Public License
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19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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20 **/
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21
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23 #include "../Resources/Orthanc/Plugins/OrthancPluginCppWrapper.h"
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24
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25 #include "../../OrthancStone/Sources/Toolbox/AffineTransform2D.h"
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26 #include "../../OrthancStone/Sources/Toolbox/DicomInstanceParameters.h"
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27
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28 #include <EmbeddedResources.h>
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29
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30 #include <Images/Image.h>
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31 #include <Images/ImageProcessing.h>
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32 #include <Images/NumpyWriter.h>
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33 #include <Logging.h>
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34
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35 #include <boost/math/constants/constants.hpp>
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36
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37
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38 static Orthanc::PixelFormat Convert(OrthancPluginPixelFormat format)
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39 {
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40 switch (format)
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41 {
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42 case OrthancPluginPixelFormat_RGB24:
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43 return Orthanc::PixelFormat_RGB24;
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44
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45 case OrthancPluginPixelFormat_Grayscale8:
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46 return Orthanc::PixelFormat_Grayscale8;
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47
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48 case OrthancPluginPixelFormat_Grayscale16:
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49 return Orthanc::PixelFormat_Grayscale16;
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50
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51 case OrthancPluginPixelFormat_SignedGrayscale16:
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52 return Orthanc::PixelFormat_SignedGrayscale16;
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53
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54 default:
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55 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented);
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56 }
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57 }
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58
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59
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60 static void RenderNumpyFrame(OrthancPluginRestOutput* output,
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61 const char* url,
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62 const OrthancPluginHttpRequest* request)
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63 {
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64 // TODO: Parameters in GET
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65
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66 OrthancPlugins::MemoryBuffer tags;
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67 if (!tags.RestApiGet("/instances/" + std::string(request->groups[0]) + "/tags", false))
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68 {
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69 throw Orthanc::OrthancException(Orthanc::ErrorCode_InexistentItem);
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70 }
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71
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72 Json::Value json;
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73 tags.ToJson(json);
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74
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75 Orthanc::DicomMap m;
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76 m.FromDicomAsJson(json);
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78 OrthancStone::DicomInstanceParameters parameters(m);
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79
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80 OrthancPlugins::MemoryBuffer dicom;
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81 dicom.GetDicomInstance(request->groups[0]);
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82
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83 unsigned int frame = boost::lexical_cast<unsigned int>(request->groups[1]);
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84
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85 OrthancPlugins::OrthancImage image;
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86 image.DecodeDicomImage(dicom.GetData(), dicom.GetSize(), frame);
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87
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88 Orthanc::ImageAccessor source;
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89 source.AssignReadOnly(Convert(image.GetPixelFormat()), image.GetWidth(), image.GetHeight(),
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90 image.GetPitch(), image.GetBuffer());
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91
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92 double angle = 0;
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93 double scaling = 1;
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94 double offsetX = 0;
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95 double offsetY = 0;
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96 bool flipX = false;
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97 bool flipY = false;
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98
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99 OrthancStone::AffineTransform2D t;
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100 t = OrthancStone::AffineTransform2D::Combine(
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101 OrthancStone::AffineTransform2D::CreateOffset(static_cast<double>(image.GetWidth()) / 2.0 + offsetX,
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102 static_cast<double>(image.GetHeight()) / 2.0 + offsetY),
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103 OrthancStone::AffineTransform2D::CreateScaling(scaling, scaling),
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104 OrthancStone::AffineTransform2D::CreateRotation(angle / 180.0 * boost::math::constants::pi<double>()),
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105 OrthancStone::AffineTransform2D::CreateOffset(-static_cast<double>(image.GetWidth()) / 2.0,
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106 -static_cast<double>(image.GetHeight()) / 2.0),
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107 OrthancStone::AffineTransform2D::CreateFlip(flipX, flipY, image.GetWidth(), image.GetHeight()));
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108
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109 std::unique_ptr<Orthanc::ImageAccessor> modified;
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110
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111 if (source.GetFormat() == Orthanc::PixelFormat_RGB24)
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112 {
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113 LOG(WARNING) << "Bilinear interpolation for color images is not implemented yet";
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114
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115 modified.reset(new Orthanc::Image(source.GetFormat(), source.GetWidth(), source.GetHeight(), false));
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116 t.Apply(*modified, source, OrthancStone::ImageInterpolation_Nearest, true);
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117 }
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118 else
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119 {
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120 std::unique_ptr<Orthanc::ImageAccessor> converted(parameters.ConvertToFloat(source));
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121
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122 assert(converted.get() != NULL);
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123 modified.reset(new Orthanc::Image(converted->GetFormat(), converted->GetWidth(), converted->GetHeight(), false));
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124 t.Apply(*modified, *converted, OrthancStone::ImageInterpolation_Bilinear, true);
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125 }
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126
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127 assert(modified.get() != NULL);
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128
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129 std::string answer;
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130 Orthanc::NumpyWriter writer;
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131 Orthanc::IImageWriter::WriteToMemory(writer, answer, *modified);
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132
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133 OrthancPluginAnswerBuffer(OrthancPlugins::GetGlobalContext(), output,
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134 answer.c_str(), answer.size(), "text/plain");
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135 }
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136
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137
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138 extern "C"
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139 {
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140 ORTHANC_PLUGINS_API int32_t OrthancPluginInitialize(OrthancPluginContext* context)
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141 {
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142 OrthancPlugins::SetGlobalContext(context);
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143
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144 #if ORTHANC_FRAMEWORK_VERSION_IS_ABOVE(1, 7, 2)
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145 Orthanc::Logging::InitializePluginContext(context);
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146 #else
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147 Orthanc::Logging::Initialize(context);
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148 #endif
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149
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150 /* Check the version of the Orthanc core */
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151 if (OrthancPluginCheckVersion(context) == 0)
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152 {
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153 char info[1024];
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154 sprintf(info, "Your version of Orthanc (%s) must be above %d.%d.%d to run this plugin",
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155 context->orthancVersion,
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156 ORTHANC_PLUGINS_MINIMAL_MAJOR_NUMBER,
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157 ORTHANC_PLUGINS_MINIMAL_MINOR_NUMBER,
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158 ORTHANC_PLUGINS_MINIMAL_REVISION_NUMBER);
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159 OrthancPluginLogError(context, info);
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160 return -1;
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161 }
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162
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163 try
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164 {
1882
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165 OrthancPlugins::RegisterRestCallback<RenderNumpyFrame>("/stone/instances/([^/]+)/frames/([0-9]+)/numpy", true);
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166 }
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167 catch (...)
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168 {
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169 OrthancPlugins::LogError("Exception while initializing the Stone Web viewer plugin");
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170 return -1;
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171 }
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172
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173 return 0;
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174 }
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175
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176
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177 ORTHANC_PLUGINS_API void OrthancPluginFinalize()
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178 {
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179 }
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180
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181
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182 ORTHANC_PLUGINS_API const char* OrthancPluginGetName()
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183 {
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184 return PLUGIN_NAME;
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185 }
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186
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187
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188 ORTHANC_PLUGINS_API const char* OrthancPluginGetVersion()
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189 {
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190 return PLUGIN_VERSION;
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191 }
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192 }