Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Volumes/ImageBuffer3D.h @ 1886:ca89fec8c48f
test
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 14 Jan 2022 19:10:30 +0100 |
parents | 7053b8a0aaec |
children | 07964689cb0b |
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) 2017-2022 Osimis S.A., Belgium |
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6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
0 | 7 * |
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 Lesser General Public License |
47 | 10 * as published by the Free Software Foundation, either version 3 of |
11 * the License, or (at your option) any later version. | |
0 | 12 * |
13 * This program is distributed in the hope that it will be useful, but | |
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 * Lesser 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 Lesser General Public |
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19 * License along with this program. If not, see |
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20 * <http://www.gnu.org/licenses/>. |
0 | 21 **/ |
22 | |
23 | |
24 #pragma once | |
25 | |
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26 #include "../StoneEnumerations.h" |
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27 #include "../Toolbox/LinearAlgebra.h" |
0 | 28 |
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29 #include <Compatibility.h> |
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30 #include <Images/Image.h> |
0 | 31 |
32 namespace OrthancStone | |
33 { | |
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34 /* |
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35 |
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36 IMPORTANT: The "ImageBuffer3D" class is *not* meant to be accessed |
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37 directly by the end users using the "GetVoxelXXX()" methods, |
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38 because of the swapping of the Z-axis (see below). The public |
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39 interactions with this class should be limited to: |
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40 |
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41 1- Using "SliceReader" and "SliceWriter" to access the raw slices, |
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42 but only on the axial projection, *and* using the "z" |
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43 coordinates returned by some "SlicesSorter" object |
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44 |
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45 2- Extracting slices using a cutting plane through class deriving |
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46 from the "IVolumeSlicer" interface |
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47 |
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48 |
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49 IMPLEMENTATION NOTE: This classes stores volume images sliced across |
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50 the Z axis, vertically, in the DECREASING Z-order along the normal |
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51 (this is the REVERSE of the intuitive order): |
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52 |
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53 +---------------+ |
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54 | | |
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55 | SLICE N-1 | |
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56 | | |
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57 +---------------+ |
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58 | | |
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59 | SLICE N-2 | |
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60 | | |
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61 +---------------+ |
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62 | | |
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63 | SLICE N-3 | |
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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 | | |
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69 | SLICE 2 | |
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70 | | |
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71 +---------------+ |
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72 | | |
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73 | SLICE 1 | |
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74 | | |
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75 +---------------+ |
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76 | | |
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77 | SLICE 0 | |
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78 | | |
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79 +---------------+ |
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80 |
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81 As you can see, if the 3d image has size width, height, depth, the 2d image has : |
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82 - 2d width = 3d width |
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83 - 2d height = 3d height * 3d depth |
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84 |
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85 This explains the "depth_ - 1 - z" that are used throughout this class. |
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86 |
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87 EXPLANATION: This allows to have the "SliceReader" and "SliceWriter" |
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88 accessors for axial and coronal projections to directly access the |
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89 same memory buffer (no memcpy is required), while being consistent |
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90 with the Z-axis in coronal projection. The sagittal projection |
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91 nevertheless needs a memcpy. |
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92 |
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93 */ |
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94 |
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95 class ImageBuffer3D : public boost::noncopyable |
0 | 96 { |
97 private: | |
98 Orthanc::Image image_; | |
99 Orthanc::PixelFormat format_; | |
100 unsigned int width_; | |
101 unsigned int height_; | |
102 unsigned int depth_; | |
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103 bool computeRange_; |
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104 bool hasRange_; |
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105 float minValue_; |
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106 float maxValue_; |
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107 Matrix transform_; |
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108 Matrix transformInverse_; |
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109 |
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110 void ExtendImageRange(const Orthanc::ImageAccessor& slice); |
0 | 111 |
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112 void GetAxialSliceAccessor(Orthanc::ImageAccessor& target, |
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113 unsigned int slice, |
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114 bool readOnly); |
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115 |
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116 void GetCoronalSliceAccessor(Orthanc::ImageAccessor& target, |
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117 unsigned int slice, |
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118 bool readOnly); |
0 | 119 |
120 Orthanc::Image* ExtractSagittalSlice(unsigned int slice) const; | |
121 | |
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122 void CommitSagittalSlice(unsigned int slice, |
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123 const Orthanc::ImageAccessor& source); |
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124 |
143 | 125 template <typename T> |
126 T GetPixelUnchecked(unsigned int x, | |
127 unsigned int y, | |
128 unsigned int z) const | |
129 { | |
130 const uint8_t* buffer = reinterpret_cast<const uint8_t*>(image_.GetConstBuffer()); | |
131 const uint8_t* row = buffer + (y + height_ * (depth_ - 1 - z)) * image_.GetPitch(); | |
132 return reinterpret_cast<const T*>(row) [x]; | |
133 } | |
134 | |
0 | 135 public: |
136 ImageBuffer3D(Orthanc::PixelFormat format, | |
137 unsigned int width, | |
138 unsigned int height, | |
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139 unsigned int depth, |
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140 bool computeRange); |
0 | 141 |
142 void Clear(); | |
143 | |
179
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144 const Orthanc::ImageAccessor& GetInternalImage() const |
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145 { |
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146 return image_; |
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147 } |
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148 |
0 | 149 unsigned int GetWidth() const |
150 { | |
151 return width_; | |
152 } | |
153 | |
154 unsigned int GetHeight() const | |
155 { | |
156 return height_; | |
157 } | |
158 | |
159 unsigned int GetDepth() const | |
160 { | |
161 return depth_; | |
162 } | |
163 | |
164 Orthanc::PixelFormat GetFormat() const | |
165 { | |
166 return format_; | |
167 } | |
168 | |
765 | 169 unsigned int GetBytesPerPixel() const |
170 { | |
171 return Orthanc::GetBytesPerPixel(format_); | |
172 } | |
173 | |
105 | 174 uint64_t GetEstimatedMemorySize() const; |
175 | |
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176 bool GetRange(float& minValue, |
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177 float& maxValue) const; |
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178 |
143 | 179 uint8_t GetVoxelGrayscale8Unchecked(unsigned int x, |
180 unsigned int y, | |
181 unsigned int z) const | |
182 { | |
183 return GetPixelUnchecked<uint8_t>(x, y, z); | |
184 } | |
185 | |
186 uint16_t GetVoxelGrayscale16Unchecked(unsigned int x, | |
187 unsigned int y, | |
188 unsigned int z) const | |
189 { | |
190 return GetPixelUnchecked<uint16_t>(x, y, z); | |
191 } | |
192 | |
149
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193 int16_t GetVoxelSignedGrayscale16Unchecked(unsigned int x, |
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194 unsigned int y, |
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195 unsigned int z) const |
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196 { |
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197 return GetPixelUnchecked<int16_t>(x, y, z); |
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198 } |
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199 |
143 | 200 uint8_t GetVoxelGrayscale8(unsigned int x, |
141
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201 unsigned int y, |
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202 unsigned int z) const; |
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203 |
143 | 204 uint16_t GetVoxelGrayscale16(unsigned int x, |
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205 unsigned int y, |
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206 unsigned int z) const; |
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207 |
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208 |
0 | 209 class SliceReader : public boost::noncopyable |
210 { | |
211 private: | |
212 Orthanc::ImageAccessor accessor_; | |
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213 std::unique_ptr<Orthanc::Image> sagittal_; // Unused for axial and coronal |
0 | 214 |
215 public: | |
192
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216 SliceReader(const ImageBuffer3D& that, |
0 | 217 VolumeProjection projection, |
218 unsigned int slice); | |
219 | |
220 const Orthanc::ImageAccessor& GetAccessor() const | |
221 { | |
222 return accessor_; | |
223 } | |
224 }; | |
225 | |
226 | |
227 class SliceWriter : public boost::noncopyable | |
228 { | |
229 private: | |
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230 ImageBuffer3D& that_; |
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231 bool modified_; |
0 | 232 Orthanc::ImageAccessor accessor_; |
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233 std::unique_ptr<Orthanc::Image> sagittal_; // Unused for axial and coronal |
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234 unsigned int slice_; |
0 | 235 |
236 void Flush(); | |
237 | |
238 public: | |
239 SliceWriter(ImageBuffer3D& that, | |
240 VolumeProjection projection, | |
241 unsigned int slice); | |
242 | |
243 ~SliceWriter() | |
244 { | |
245 Flush(); | |
246 } | |
247 | |
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248 const Orthanc::ImageAccessor& GetAccessor() const |
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249 { |
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250 return accessor_; |
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251 } |
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252 |
0 | 253 Orthanc::ImageAccessor& GetAccessor() |
254 { | |
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255 modified_ = true; |
0 | 256 return accessor_; |
257 } | |
258 }; | |
259 }; | |
260 } |