Mercurial > hg > orthanc-stone

annotate OrthancStone/Sources/Deprecated/Radiography/RadiographyDicomLayer.cpp @ 1556:8898f8f755c8

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typo
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 18 Aug 2020 11:58:47 +0200
parents 244ad1e4e76a
children
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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) 2017-2020 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Affero General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Affero General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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20
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21
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22 #include "RadiographyDicomLayer.h"
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23
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24 #include "RadiographyScene.h"
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25 #include "../Deprecated/Toolbox/DicomFrameConverter.h"
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26 #include "../Toolbox/ImageGeometry.h"
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27
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28 #include <OrthancException.h>
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29 #include <Images/Image.h>
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30 #include <Images/ImageProcessing.h>
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31 #include <DicomDatasetReader.h>
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32
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33 static OrthancPlugins::DicomTag ConvertTag(const Orthanc::DicomTag& tag)
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34 {
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35 return OrthancPlugins::DicomTag(tag.GetGroup(), tag.GetElement());
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36 }
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37
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38 namespace OrthancStone
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39 {
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40
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41 void RadiographyDicomLayer::ApplyConverter()
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42 {
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43 if (source_.get() != NULL &&
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44 converter_.get() != NULL)
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45 {
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46 converted_.reset(converter_->ConvertFrame(*source_));
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47 }
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48 }
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49
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50
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51 RadiographyDicomLayer::RadiographyDicomLayer(const RadiographyScene& scene) :
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52 RadiographyLayer(scene)
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53 {
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55 }
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56
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57 void RadiographyDicomLayer::SetDicomTags(const OrthancPlugins::FullOrthancDataset& dataset)
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58 {
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59 converter_.reset(new Deprecated::DicomFrameConverter);
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60 converter_->ReadParameters(dataset);
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61 ApplyConverter();
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62
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63 std::string tmp;
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64 Vector pixelSpacing;
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65
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66 if (dataset.GetStringValue(tmp, ConvertTag(Orthanc::DICOM_TAG_PIXEL_SPACING)) &&
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67 LinearAlgebra::ParseVector(pixelSpacing, tmp) &&
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68 pixelSpacing.size() == 2)
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69 {
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70 SetPixelSpacing(pixelSpacing[0], pixelSpacing[1]);
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71 }
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72
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73 OrthancPlugins::DicomDatasetReader reader(dataset);
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74
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75 unsigned int width, height;
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76 if (!reader.GetUnsignedIntegerValue(width, ConvertTag(Orthanc::DICOM_TAG_COLUMNS)) ||
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77 !reader.GetUnsignedIntegerValue(height, ConvertTag(Orthanc::DICOM_TAG_ROWS)))
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78 {
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79 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat);
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80 }
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81 else
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82 {
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83 SetSize(width, height);
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84 }
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85
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86 if (dataset.GetStringValue(tmp, ConvertTag(Orthanc::DICOM_TAG_PHOTOMETRIC_INTERPRETATION)))
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87 {
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88 if (tmp == "MONOCHROME1")
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89 {
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90 SetPreferredPhotomotricDisplayMode(RadiographyPhotometricDisplayMode_Monochrome1);
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91 }
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92 else if (tmp == "MONOCHROME2")
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93 {
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94 SetPreferredPhotomotricDisplayMode(RadiographyPhotometricDisplayMode_Monochrome2);
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95 }
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96 }
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97 }
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98
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99 void RadiographyDicomLayer::SetSourceImage(Orthanc::ImageAccessor* image) // Takes ownership
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100 {
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101 std::unique_ptr<Orthanc::ImageAccessor> raii(image);
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102
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103 if (image == NULL)
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104 {
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105 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
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106 }
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107
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108 SetSize(image->GetWidth(), image->GetHeight());
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109
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110 #if __cplusplus < 201103L
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111 source_.reset(raii.release());
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112 #else
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113 source_ = std::move(raii);
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114 #endif
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115
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116 ApplyConverter();
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117
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118 BroadcastMessage(RadiographyLayer::LayerEditedMessage(*this));
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119 }
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120
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121 void RadiographyDicomLayer::SetSourceImage(Orthanc::ImageAccessor* image, double newPixelSpacingX, double newPixelSpacingY, bool emitLayerEditedEvent) // Takes ownership
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122 {
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123 std::unique_ptr<Orthanc::ImageAccessor> raii(image);
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124
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125 if (image == NULL)
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126 {
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127 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
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128 }
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129
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130 SetSize(image->GetWidth(), image->GetHeight(), false);
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131
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132 #if __cplusplus < 201103L
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133 source_.reset(raii.release());
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134 #else
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135 source_ = std::move(raii);
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136 #endif
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137
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138 ApplyConverter();
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139
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140 SetPixelSpacing(newPixelSpacingX, newPixelSpacingY, false);
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141
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142 if (emitLayerEditedEvent)
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143 {
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144 BroadcastMessage(RadiographyLayer::LayerEditedMessage(*this));
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145 }
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146 }
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147
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148
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149 void RadiographyDicomLayer::SetDicomFrameConverter(Deprecated::DicomFrameConverter* converter)
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150 {
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151 converter_.reset(converter);
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152 }
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153
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154 void RadiographyDicomLayer::Render(Orthanc::ImageAccessor& buffer,
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155 const AffineTransform2D& viewTransform,
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156 ImageInterpolation interpolation,
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157 float windowCenter,
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158 float windowWidth,
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159 bool applyWindowing) const
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160 {
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161 if (converted_.get() != NULL)
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162 {
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163 if (converted_->GetFormat() != Orthanc::PixelFormat_Float32)
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164 {
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165 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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166 }
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167
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168 unsigned int cropX, cropY, cropWidth, cropHeight;
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169 GetCrop(cropX, cropY, cropWidth, cropHeight);
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170
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171 AffineTransform2D t = AffineTransform2D::Combine(
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172 viewTransform, GetTransform(),
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173 AffineTransform2D::CreateOffset(cropX, cropY));
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174
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175 Orthanc::ImageAccessor cropped;
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176 converted_->GetRegion(cropped, cropX, cropY, cropWidth, cropHeight);
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177
1201
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Alain Mazy <alain@mazy.be>
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178 unsigned int x1, y1, x2, y2;
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179 if (!OrthancStone::GetProjectiveTransformExtent(x1, y1, x2, y2,
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180 t.GetHomogeneousMatrix(),
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181 cropped.GetWidth(),
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182 cropped.GetHeight(),
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183 buffer.GetWidth(),
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184 buffer.GetHeight()))
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185 {
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186 return; // layer is outside the buffer
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187 }
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188
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189 t.Apply(buffer, cropped, interpolation, false);
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190
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191 if (applyWindowing)
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192 {
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193 // apply windowing but stay in the range [0.0, 65535.0]
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194 float w0 = windowCenter - windowWidth / 2.0f;
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195 float w1 = windowCenter + windowWidth / 2.0f;
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196
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197 if (windowWidth >= 0.001f) // Avoid division by zero at (*)
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198 {
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199 float scaling = 1.0f / (w1 - w0) * 65535.0f;
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200 for (unsigned int y = y1; y <= y2; y++)
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201 {
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202 float* p = reinterpret_cast<float*>(buffer.GetRow(y)) + x1;
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203
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204 for (unsigned int x = x1; x <= x2; x++, p++)
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205 {
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206 if (*p >= w1)
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207 {
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208 *p = 65535.0;
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209 }
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210 else if (*p <= w0)
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211 {
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212 *p = 0;
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213 }
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214 else
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215 {
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216 // https://en.wikipedia.org/wiki/Linear_interpolation
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217 *p = scaling * (*p - w0); // (*)
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218 }
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219 }
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220 }
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221 }
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Alain Mazy <alain@mazy.be>
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222 }
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223
430
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224 }
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225 }
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226
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227
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228 bool RadiographyDicomLayer::GetDefaultWindowing(float& center,
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229 float& width) const
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230 {
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231 if (converter_.get() != NULL &&
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232 converter_->HasDefaultWindow())
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233 {
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234 center = static_cast<float>(converter_->GetDefaultWindowCenter());
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235 width = static_cast<float>(converter_->GetDefaultWindowWidth());
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236 return true;
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237 }
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238 else
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239 {
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240 return false;
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241 }
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242 }
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243
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244
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245 bool RadiographyDicomLayer::GetRange(float& minValue,
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246 float& maxValue) const
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247 {
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248 if (converted_.get() != NULL)
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249 {
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250 if (converted_->GetFormat() != Orthanc::PixelFormat_Float32)
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251 {
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252 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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253 }
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254
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255 Orthanc::ImageProcessing::GetMinMaxFloatValue(minValue, maxValue, *converted_);
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256 return true;
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257 }
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258 else
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259 {
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260 return false;
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261 }
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262 }
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263
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264 }