Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Volumes/ImageBuffer3D.h @ 1852:5ead1852095a StoneWebViewer-2.1
StoneWebViewer-2.1
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 29 Jun 2021 16:26:47 +0200 |
parents | 58bebc904191 |
children | 3889ae96d2e9 |
rev | line source |
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0 | 1 /** |
2 * Stone of Orthanc | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
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5 * Copyright (C) 2017-2021 Osimis S.A., Belgium |
0 | 6 * |
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 Lesser General Public License |
47 | 9 * as published by the Free Software Foundation, either version 3 of |
10 * the License, or (at your option) any later version. | |
0 | 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 | |
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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15 * Lesser 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 Lesser General Public |
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18 * License along with this program. If not, see |
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19 * <http://www.gnu.org/licenses/>. |
0 | 20 **/ |
21 | |
22 | |
23 #pragma once | |
24 | |
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25 #include "../StoneEnumerations.h" |
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26 #include "../Toolbox/LinearAlgebra.h" |
0 | 27 |
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28 #include <Compatibility.h> |
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29 #include <Images/Image.h> |
0 | 30 |
31 namespace OrthancStone | |
32 { | |
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33 /* |
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34 |
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35 IMPORTANT: The "ImageBuffer3D" class is *not* meant to be accessed |
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36 directly by the end users using the "GetVoxelXXX()" methods, |
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37 because of the swapping of the Z-axis (see below). The public |
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38 interactions with this class should be limited to: |
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39 |
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40 1- Using "SliceReader" and "SliceWriter" to access the raw slices, |
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41 but only on the axial projection, *and* using the "z" |
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42 coordinates returned by some "SlicesSorter" object |
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43 |
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44 2- Extracting slices using a cutting plane through class deriving |
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45 from the "IVolumeSlicer" interface |
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46 |
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47 |
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48 IMPLEMENTATION NOTE: This classes stores volume images sliced across |
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49 the Z axis, vertically, in the DECREASING Z-order along the normal |
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50 (this is the REVERSE of the intuitive order): |
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51 |
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52 +---------------+ |
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53 | | |
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54 | SLICE N-1 | |
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55 | | |
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56 +---------------+ |
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57 | | |
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58 | SLICE N-2 | |
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59 | | |
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60 +---------------+ |
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61 | | |
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62 | SLICE N-3 | |
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63 | | |
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64 . . |
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65 ...... ...... |
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66 . . |
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67 | | |
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68 | SLICE 2 | |
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69 | | |
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70 +---------------+ |
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71 | | |
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72 | SLICE 1 | |
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73 | | |
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74 +---------------+ |
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75 | | |
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76 | SLICE 0 | |
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77 | | |
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78 +---------------+ |
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79 |
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80 As you can see, if the 3d image has size width, height, depth, the 2d image has : |
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81 - 2d width = 3d width |
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82 - 2d height = 3d height * 3d depth |
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83 |
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84 This explains the "depth_ - 1 - z" that are used throughout this class. |
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85 |
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86 EXPLANATION: This allows to have the "SliceReader" and "SliceWriter" |
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87 accessors for axial and coronal projections to directly access the |
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88 same memory buffer (no memcpy is required), while being consistent |
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89 with the Z-axis in coronal projection. The sagittal projection |
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90 nevertheless needs a memcpy. |
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91 |
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92 */ |
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93 |
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94 class ImageBuffer3D : public boost::noncopyable |
0 | 95 { |
96 private: | |
97 Orthanc::Image image_; | |
98 Orthanc::PixelFormat format_; | |
99 unsigned int width_; | |
100 unsigned int height_; | |
101 unsigned int depth_; | |
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102 bool computeRange_; |
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103 bool hasRange_; |
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104 float minValue_; |
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105 float maxValue_; |
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106 Matrix transform_; |
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107 Matrix transformInverse_; |
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108 |
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109 void ExtendImageRange(const Orthanc::ImageAccessor& slice); |
0 | 110 |
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111 void GetAxialSliceAccessor(Orthanc::ImageAccessor& target, |
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112 unsigned int slice, |
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113 bool readOnly); |
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114 |
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115 void GetCoronalSliceAccessor(Orthanc::ImageAccessor& target, |
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116 unsigned int slice, |
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117 bool readOnly); |
0 | 118 |
119 Orthanc::Image* ExtractSagittalSlice(unsigned int slice) const; | |
120 | |
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121 void CommitSagittalSlice(unsigned int slice, |
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122 const Orthanc::ImageAccessor& source); |
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123 |
143 | 124 template <typename T> |
125 T GetPixelUnchecked(unsigned int x, | |
126 unsigned int y, | |
127 unsigned int z) const | |
128 { | |
129 const uint8_t* buffer = reinterpret_cast<const uint8_t*>(image_.GetConstBuffer()); | |
130 const uint8_t* row = buffer + (y + height_ * (depth_ - 1 - z)) * image_.GetPitch(); | |
131 return reinterpret_cast<const T*>(row) [x]; | |
132 } | |
133 | |
0 | 134 public: |
135 ImageBuffer3D(Orthanc::PixelFormat format, | |
136 unsigned int width, | |
137 unsigned int height, | |
119
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138 unsigned int depth, |
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139 bool computeRange); |
0 | 140 |
141 void Clear(); | |
142 | |
179
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143 const Orthanc::ImageAccessor& GetInternalImage() const |
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144 { |
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145 return image_; |
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146 } |
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147 |
0 | 148 unsigned int GetWidth() const |
149 { | |
150 return width_; | |
151 } | |
152 | |
153 unsigned int GetHeight() const | |
154 { | |
155 return height_; | |
156 } | |
157 | |
158 unsigned int GetDepth() const | |
159 { | |
160 return depth_; | |
161 } | |
162 | |
163 Orthanc::PixelFormat GetFormat() const | |
164 { | |
165 return format_; | |
166 } | |
167 | |
765 | 168 unsigned int GetBytesPerPixel() const |
169 { | |
170 return Orthanc::GetBytesPerPixel(format_); | |
171 } | |
172 | |
105 | 173 uint64_t GetEstimatedMemorySize() const; |
174 | |
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175 bool GetRange(float& minValue, |
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176 float& maxValue) const; |
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177 |
143 | 178 uint8_t GetVoxelGrayscale8Unchecked(unsigned int x, |
179 unsigned int y, | |
180 unsigned int z) const | |
181 { | |
182 return GetPixelUnchecked<uint8_t>(x, y, z); | |
183 } | |
184 | |
185 uint16_t GetVoxelGrayscale16Unchecked(unsigned int x, | |
186 unsigned int y, | |
187 unsigned int z) const | |
188 { | |
189 return GetPixelUnchecked<uint16_t>(x, y, z); | |
190 } | |
191 | |
149
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192 int16_t GetVoxelSignedGrayscale16Unchecked(unsigned int x, |
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193 unsigned int y, |
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194 unsigned int z) const |
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195 { |
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196 return GetPixelUnchecked<int16_t>(x, y, z); |
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197 } |
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198 |
143 | 199 uint8_t GetVoxelGrayscale8(unsigned int x, |
141
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200 unsigned int y, |
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201 unsigned int z) const; |
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202 |
143 | 203 uint16_t GetVoxelGrayscale16(unsigned int x, |
139
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204 unsigned int y, |
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205 unsigned int z) const; |
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206 |
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207 |
0 | 208 class SliceReader : public boost::noncopyable |
209 { | |
210 private: | |
211 Orthanc::ImageAccessor accessor_; | |
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212 std::unique_ptr<Orthanc::Image> sagittal_; // Unused for axial and coronal |
0 | 213 |
214 public: | |
192
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215 SliceReader(const ImageBuffer3D& that, |
0 | 216 VolumeProjection projection, |
217 unsigned int slice); | |
218 | |
219 const Orthanc::ImageAccessor& GetAccessor() const | |
220 { | |
221 return accessor_; | |
222 } | |
223 }; | |
224 | |
225 | |
226 class SliceWriter : public boost::noncopyable | |
227 { | |
228 private: | |
119
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229 ImageBuffer3D& that_; |
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230 bool modified_; |
0 | 231 Orthanc::ImageAccessor accessor_; |
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232 std::unique_ptr<Orthanc::Image> sagittal_; // Unused for axial and coronal |
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233 unsigned int slice_; |
0 | 234 |
235 void Flush(); | |
236 | |
237 public: | |
238 SliceWriter(ImageBuffer3D& that, | |
239 VolumeProjection projection, | |
240 unsigned int slice); | |
241 | |
242 ~SliceWriter() | |
243 { | |
244 Flush(); | |
245 } | |
246 | |
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247 const Orthanc::ImageAccessor& GetAccessor() const |
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248 { |
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249 return accessor_; |
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250 } |
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251 |
0 | 252 Orthanc::ImageAccessor& GetAccessor() |
253 { | |
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254 modified_ = true; |
0 | 255 return accessor_; |
256 } | |
257 }; | |
258 }; | |
259 } |