Mercurial > hg > orthanc-stone
annotate Framework/Radiography/RadiographyDicomLayer.cpp @ 1272:a989c7d46b9a
options to avoid multiple LayerEditedMessage
author | Alain Mazy <alain@mazy.be> |
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date | Mon, 03 Feb 2020 14:56:56 +0100 |
parents | ab958fd99b07 |
children | 7ec8fea061b9 1c7ae79c426d |
rev | line source |
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430 | 1 /** |
2 * Stone of Orthanc | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
5 * Copyright (C) 2017-2018 Osimis S.A., Belgium | |
6 * | |
7 * This program is free software: you can redistribute it and/or | |
8 * modify it under the terms of the GNU Affero General Public License | |
9 * as published by the Free Software Foundation, either version 3 of | |
10 * the License, or (at your option) any later version. | |
11 * | |
12 * This program is distributed in the hope that it will be useful, but | |
13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 * Affero General Public License for more details. | |
16 * | |
17 * You should have received a copy of the GNU Affero General Public License | |
18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 **/ | |
20 | |
21 | |
22 #include "RadiographyDicomLayer.h" | |
23 | |
24 #include "RadiographyScene.h" | |
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25 #include "../Deprecated/Toolbox/DicomFrameConverter.h" |
430 | 26 |
27 #include <Core/OrthancException.h> | |
28 #include <Core/Images/Image.h> | |
29 #include <Core/Images/ImageProcessing.h> | |
30 #include <Plugins/Samples/Common/DicomDatasetReader.h> | |
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31 #include "../Toolbox/ImageGeometry.h" |
430 | 32 |
33 static OrthancPlugins::DicomTag ConvertTag(const Orthanc::DicomTag& tag) | |
34 { | |
35 return OrthancPlugins::DicomTag(tag.GetGroup(), tag.GetElement()); | |
36 } | |
37 | |
38 namespace OrthancStone | |
39 { | |
40 | |
41 void RadiographyDicomLayer::ApplyConverter() | |
42 { | |
43 if (source_.get() != NULL && | |
44 converter_.get() != NULL) | |
45 { | |
46 converted_.reset(converter_->ConvertFrame(*source_)); | |
47 } | |
48 } | |
49 | |
50 | |
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51 RadiographyDicomLayer::RadiographyDicomLayer(MessageBroker& broker, const RadiographyScene& scene) : RadiographyLayer(broker, scene) |
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52 { |
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53 |
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54 } |
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55 |
430 | 56 void RadiographyDicomLayer::SetDicomTags(const OrthancPlugins::FullOrthancDataset& dataset) |
57 { | |
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58 converter_.reset(new Deprecated::DicomFrameConverter); |
430 | 59 converter_->ReadParameters(dataset); |
60 ApplyConverter(); | |
61 | |
62 std::string tmp; | |
63 Vector pixelSpacing; | |
64 | |
65 if (dataset.GetStringValue(tmp, ConvertTag(Orthanc::DICOM_TAG_PIXEL_SPACING)) && | |
66 LinearAlgebra::ParseVector(pixelSpacing, tmp) && | |
67 pixelSpacing.size() == 2) | |
68 { | |
69 SetPixelSpacing(pixelSpacing[0], pixelSpacing[1]); | |
70 } | |
71 | |
72 OrthancPlugins::DicomDatasetReader reader(dataset); | |
73 | |
74 unsigned int width, height; | |
75 if (!reader.GetUnsignedIntegerValue(width, ConvertTag(Orthanc::DICOM_TAG_COLUMNS)) || | |
76 !reader.GetUnsignedIntegerValue(height, ConvertTag(Orthanc::DICOM_TAG_ROWS))) | |
77 { | |
78 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat); | |
79 } | |
80 else | |
81 { | |
82 SetSize(width, height); | |
83 } | |
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84 |
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85 if (dataset.GetStringValue(tmp, ConvertTag(Orthanc::DICOM_TAG_PHOTOMETRIC_INTERPRETATION))) |
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86 { |
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87 if (tmp == "MONOCHROME1") |
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88 { |
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89 SetPreferredPhotomotricDisplayMode(RadiographyPhotometricDisplayMode_Monochrome1); |
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90 } |
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91 else if (tmp == "MONOCHROME2") |
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92 { |
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93 SetPreferredPhotomotricDisplayMode(RadiographyPhotometricDisplayMode_Monochrome2); |
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94 } |
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95 } |
430 | 96 } |
97 | |
98 void RadiographyDicomLayer::SetSourceImage(Orthanc::ImageAccessor* image) // Takes ownership | |
99 { | |
100 std::auto_ptr<Orthanc::ImageAccessor> raii(image); | |
101 | |
102 if (image == NULL) | |
103 { | |
104 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
105 } | |
106 | |
107 SetSize(image->GetWidth(), image->GetHeight()); | |
108 | |
109 source_ = raii; | |
110 ApplyConverter(); | |
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111 |
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112 BroadcastMessage(RadiographyLayer::LayerEditedMessage(*this)); |
430 | 113 } |
114 | |
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115 void RadiographyDicomLayer::SetSourceImage(Orthanc::ImageAccessor* image, double newPixelSpacingX, double newPixelSpacingY, bool emitLayerEditedEvent) // Takes ownership |
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116 { |
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117 std::auto_ptr<Orthanc::ImageAccessor> raii(image); |
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118 |
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119 if (image == NULL) |
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120 { |
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121 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); |
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122 } |
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123 |
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124 SetSize(image->GetWidth(), image->GetHeight(), false); |
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125 |
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126 source_ = raii; |
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127 ApplyConverter(); |
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128 |
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129 SetPixelSpacing(newPixelSpacingX, newPixelSpacingY, false); |
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130 |
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131 if (emitLayerEditedEvent) |
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132 { |
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133 BroadcastMessage(RadiographyLayer::LayerEditedMessage(*this)); |
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134 } |
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135 } |
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136 |
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137 |
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138 void RadiographyDicomLayer::SetDicomFrameConverter(Deprecated::DicomFrameConverter* converter) |
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139 { |
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140 converter_.reset(converter); |
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141 } |
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142 |
430 | 143 void RadiographyDicomLayer::Render(Orthanc::ImageAccessor& buffer, |
144 const AffineTransform2D& viewTransform, | |
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145 ImageInterpolation interpolation, |
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146 float windowCenter, |
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147 float windowWidth, |
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148 bool applyWindowing) const |
430 | 149 { |
150 if (converted_.get() != NULL) | |
151 { | |
152 if (converted_->GetFormat() != Orthanc::PixelFormat_Float32) | |
153 { | |
154 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
155 } | |
156 | |
157 unsigned int cropX, cropY, cropWidth, cropHeight; | |
158 GetCrop(cropX, cropY, cropWidth, cropHeight); | |
159 | |
160 AffineTransform2D t = AffineTransform2D::Combine( | |
161 viewTransform, GetTransform(), | |
162 AffineTransform2D::CreateOffset(cropX, cropY)); | |
163 | |
164 Orthanc::ImageAccessor cropped; | |
165 converted_->GetRegion(cropped, cropX, cropY, cropWidth, cropHeight); | |
166 | |
1201 | 167 unsigned int x1, y1, x2, y2; |
168 if (!OrthancStone::GetProjectiveTransformExtent(x1, y1, x2, y2, | |
169 t.GetHomogeneousMatrix(), | |
170 cropped.GetWidth(), | |
171 cropped.GetHeight(), | |
172 buffer.GetWidth(), | |
173 buffer.GetHeight())) | |
174 { | |
175 return; // layer is outside the buffer | |
176 } | |
177 | |
430 | 178 t.Apply(buffer, cropped, interpolation, false); |
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179 |
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180 if (applyWindowing) |
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181 { |
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182 // apply windowing but stay in the range [0.0, 65535.0] |
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183 float w0 = windowCenter - windowWidth / 2.0f; |
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184 float w1 = windowCenter + windowWidth / 2.0f; |
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185 |
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186 if (windowWidth >= 0.001f) // Avoid division by zero at (*) |
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187 { |
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188 float scaling = 1.0f / (w1 - w0) * 65535.0f; |
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189 for (unsigned int y = y1; y <= y2; y++) |
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190 { |
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191 float* p = reinterpret_cast<float*>(buffer.GetRow(y)) + x1; |
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192 |
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193 for (unsigned int x = x1; x <= x2; x++, p++) |
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194 { |
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195 if (*p >= w1) |
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196 { |
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197 *p = 65535.0; |
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198 } |
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199 else if (*p <= w0) |
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200 { |
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201 *p = 0; |
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202 } |
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203 else |
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204 { |
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205 // https://en.wikipedia.org/wiki/Linear_interpolation |
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206 *p = scaling * (*p - w0); // (*) |
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207 } |
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208 } |
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209 } |
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210 } |
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211 } |
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changeset
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212 |
430 | 213 } |
214 } | |
215 | |
216 | |
217 bool RadiographyDicomLayer::GetDefaultWindowing(float& center, | |
218 float& width) const | |
219 { | |
220 if (converter_.get() != NULL && | |
221 converter_->HasDefaultWindow()) | |
222 { | |
223 center = static_cast<float>(converter_->GetDefaultWindowCenter()); | |
224 width = static_cast<float>(converter_->GetDefaultWindowWidth()); | |
225 return true; | |
226 } | |
227 else | |
228 { | |
229 return false; | |
230 } | |
231 } | |
232 | |
233 | |
234 bool RadiographyDicomLayer::GetRange(float& minValue, | |
235 float& maxValue) const | |
236 { | |
237 if (converted_.get() != NULL) | |
238 { | |
239 if (converted_->GetFormat() != Orthanc::PixelFormat_Float32) | |
240 { | |
241 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
242 } | |
243 | |
244 Orthanc::ImageProcessing::GetMinMaxFloatValue(minValue, maxValue, *converted_); | |
245 return true; | |
246 } | |
247 else | |
248 { | |
249 return false; | |
250 } | |
251 } | |
252 | |
253 } |