Mercurial > hg > orthanc-wsi
annotate Framework/ImageToolbox.cpp @ 161:dd736430e3a4 OrthancWSI-0.6
OrthancWSI-0.6
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Sat, 26 Jan 2019 10:48:48 +0100 |
parents | 6b8ccfc02051 |
children | 605247fc8758 |
rev | line source |
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0 | 1 /** |
2 * Orthanc - A Lightweight, RESTful DICOM Store | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
157 | 5 * Copyright (C) 2017-2019 Osimis S.A., Belgium |
0 | 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 | |
16
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22 #include "PrecompiledHeadersWSI.h" |
0 | 23 #include "ImageToolbox.h" |
24 | |
25 #include "Jpeg2000Reader.h" | |
26 #include "Jpeg2000Writer.h" | |
27 | |
140
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28 #include <Core/OrthancException.h> |
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29 #include <Core/Images/ImageProcessing.h> |
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30 #include <Core/Images/PngReader.h> |
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31 #include <Core/Images/PngWriter.h> |
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32 #include <Core/Images/JpegReader.h> |
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33 #include <Core/Images/JpegWriter.h> |
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34 #include <Core/Logging.h> |
0 | 35 |
36 #include <string.h> | |
37 #include <memory> | |
38 | |
39 | |
40 namespace OrthancWSI | |
41 { | |
42 namespace ImageToolbox | |
43 { | |
44 Orthanc::ImageAccessor* Allocate(Orthanc::PixelFormat format, | |
45 unsigned int width, | |
46 unsigned int height) | |
47 { | |
48 return new Orthanc::Image(format, width, height, false); | |
49 } | |
50 | |
51 | |
52 void Embed(Orthanc::ImageAccessor& target, | |
53 const Orthanc::ImageAccessor& source, | |
54 unsigned int x, | |
55 unsigned int y) | |
56 { | |
57 if (target.GetFormat() != source.GetFormat()) | |
58 { | |
59 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageFormat); | |
60 } | |
61 | |
62 if (x >= target.GetWidth() || | |
63 y >= target.GetHeight()) | |
64 { | |
65 return; | |
66 } | |
67 | |
68 unsigned int h = std::min(source.GetHeight(), target.GetHeight() - y); | |
69 unsigned int w = std::min(source.GetWidth(), target.GetWidth() - x); | |
70 | |
154 | 71 Orthanc::ImageAccessor targetRegion, sourceRegion; |
72 target.GetRegion(targetRegion, x, y, w, h); | |
73 source.GetRegion(sourceRegion, 0, 0, w, h); | |
74 | |
0 | 75 Orthanc::ImageProcessing::Copy(targetRegion, sourceRegion); |
76 } | |
77 | |
78 | |
79 | |
80 void Set(Orthanc::ImageAccessor& image, | |
81 uint8_t r, | |
82 uint8_t g, | |
83 uint8_t b) | |
84 { | |
85 if (image.GetWidth() == 0 || | |
86 image.GetHeight() == 0) | |
87 { | |
88 return; | |
89 } | |
90 | |
91 uint8_t grayscale = (2126 * static_cast<uint16_t>(r) + | |
92 7152 * static_cast<uint16_t>(g) + | |
93 0722 * static_cast<uint16_t>(b)) / 10000; | |
94 | |
95 switch (image.GetFormat()) | |
96 { | |
97 case Orthanc::PixelFormat_Grayscale8: | |
98 { | |
99 for (unsigned int y = 0; y < image.GetHeight(); y++) | |
100 { | |
101 memset(image.GetRow(y), grayscale, image.GetWidth()); | |
102 } | |
103 | |
104 break; | |
105 } | |
106 | |
107 case Orthanc::PixelFormat_RGB24: | |
108 { | |
109 for (unsigned int y = 0; y < image.GetHeight(); y++) | |
110 { | |
111 uint8_t* p = reinterpret_cast<uint8_t*>(image.GetRow(y)); | |
112 for (unsigned int x = 0; x < image.GetWidth(); x++, p += 3) | |
113 { | |
114 p[0] = r; | |
115 p[1] = g; | |
116 p[2] = b; | |
117 } | |
118 } | |
119 | |
120 break; | |
121 } | |
122 | |
123 default: | |
124 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); | |
125 } | |
126 } | |
127 | |
128 | |
129 Orthanc::ImageAccessor* DecodeTile(const std::string& source, | |
130 ImageCompression compression) | |
131 { | |
132 switch (compression) | |
133 { | |
134 case ImageCompression_Png: | |
135 { | |
136 std::auto_ptr<Orthanc::PngReader> reader(new Orthanc::PngReader); | |
137 reader->ReadFromMemory(source); | |
138 return reader.release(); | |
139 } | |
140 | |
141 case ImageCompression_Jpeg: | |
142 { | |
143 std::auto_ptr<Orthanc::JpegReader> reader(new Orthanc::JpegReader); | |
144 reader->ReadFromMemory(source); | |
145 return reader.release(); | |
146 } | |
147 | |
148 case ImageCompression_Jpeg2000: | |
149 { | |
150 std::auto_ptr<Jpeg2000Reader> reader(new Jpeg2000Reader); | |
151 reader->ReadFromMemory(source); | |
152 return reader.release(); | |
153 } | |
154 | |
155 default: | |
156 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
157 } | |
158 } | |
159 | |
160 | |
161 void EncodeTile(std::string& target, | |
162 const Orthanc::ImageAccessor& source, | |
163 ImageCompression compression, | |
164 uint8_t quality) | |
165 { | |
166 if (compression == ImageCompression_None) | |
167 { | |
168 unsigned int pitch = GetBytesPerPixel(source.GetFormat()) * source.GetWidth(); | |
169 target.resize(pitch * source.GetHeight()); | |
170 | |
171 for (unsigned int i = 0; i < source.GetHeight(); i++) | |
172 { | |
173 memcpy(&target[i * pitch], source.GetConstRow(i), pitch); | |
174 } | |
175 } | |
176 else | |
177 { | |
178 std::auto_ptr<Orthanc::IImageWriter> writer; | |
179 | |
180 switch (compression) | |
181 { | |
182 case ImageCompression_Png: | |
183 writer.reset(new Orthanc::PngWriter); | |
184 break; | |
185 | |
186 case ImageCompression_Jpeg: | |
187 writer.reset(new Orthanc::JpegWriter); | |
188 dynamic_cast<Orthanc::JpegWriter&>(*writer).SetQuality(quality); | |
189 break; | |
190 | |
191 case ImageCompression_Jpeg2000: | |
192 writer.reset(new Jpeg2000Writer); | |
193 break; | |
194 | |
195 default: | |
196 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
197 } | |
198 | |
199 writer->WriteToMemory(target, source); | |
200 } | |
201 } | |
202 | |
203 | |
204 void ChangeTileCompression(std::string& target, | |
205 const std::string& source, | |
206 ImageCompression sourceCompression, | |
207 ImageCompression targetCompression, | |
208 uint8_t quality) | |
209 { | |
210 if (sourceCompression == targetCompression) | |
211 { | |
212 target = source; | |
213 } | |
214 else | |
215 { | |
216 std::auto_ptr<Orthanc::ImageAccessor> decoded(DecodeTile(source, sourceCompression)); | |
217 EncodeTile(target, *decoded, targetCompression, quality); | |
218 } | |
219 } | |
220 | |
221 | |
222 static uint8_t GetPixelValue(const Orthanc::ImageAccessor& source, | |
223 unsigned int x, | |
224 unsigned int y, | |
225 unsigned int channel, | |
226 int offsetX, | |
87 | 227 int offsetY, |
228 unsigned int bytesPerPixel) | |
0 | 229 { |
87 | 230 assert(bytesPerPixel == source.GetBytesPerPixel()); |
231 assert(channel < bytesPerPixel); | |
0 | 232 assert(source.GetFormat() == Orthanc::PixelFormat_Grayscale8 || |
233 source.GetFormat() == Orthanc::PixelFormat_RGB24 || | |
234 source.GetFormat() == Orthanc::PixelFormat_RGBA32); // 16bpp is unsupported | |
235 | |
236 if (static_cast<int>(x) + offsetX < 0) | |
237 { | |
238 x = 0; | |
239 } | |
240 else | |
241 { | |
242 x += offsetX; | |
243 if (x >= source.GetWidth()) | |
244 { | |
245 x = source.GetWidth() - 1; | |
246 } | |
247 } | |
248 | |
249 if (static_cast<int>(y) + offsetY < 0) | |
250 { | |
251 y = 0; | |
252 } | |
253 else | |
254 { | |
255 y += offsetY; | |
256 if (y >= source.GetHeight()) | |
257 { | |
258 y = source.GetHeight() - 1; | |
259 } | |
260 } | |
261 | |
262 return *(reinterpret_cast<const uint8_t*>(source.GetConstBuffer()) + | |
87 | 263 y * source.GetPitch() + x * bytesPerPixel + channel); |
0 | 264 } |
265 | |
266 | |
267 static uint8_t SmoothPixelValue(const Orthanc::ImageAccessor& source, | |
268 unsigned int x, | |
269 unsigned int y, | |
87 | 270 unsigned int channel, |
271 unsigned int bytesPerPixel) | |
0 | 272 { |
273 static const uint32_t kernel[5] = { 1, 4, 6, 4, 1 }; | |
274 static const uint32_t normalization = 2 * (1 + 4 + 6 + 4 + 1); | |
275 | |
276 uint32_t accumulator = 0; | |
277 | |
278 // Horizontal smoothing | |
279 for (int offset = -2; offset <= 2; offset++) | |
280 { | |
87 | 281 accumulator += kernel[offset + 2] * GetPixelValue(source, x, y, channel, offset, 0, bytesPerPixel); |
0 | 282 } |
283 | |
284 // Vertical smoothing | |
285 for (int offset = -2; offset <= 2; offset++) | |
286 { | |
87 | 287 accumulator += kernel[offset + 2] * GetPixelValue(source, x, y, channel, 0, offset, bytesPerPixel); |
0 | 288 } |
289 | |
290 return static_cast<uint8_t>(accumulator / normalization); | |
291 } | |
292 | |
293 | |
294 Orthanc::ImageAccessor* Halve(const Orthanc::ImageAccessor& source, | |
295 bool smooth) | |
296 { | |
297 if (source.GetWidth() % 2 == 1 || | |
298 source.GetHeight() % 2 == 1) | |
299 { | |
300 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageSize); | |
301 } | |
302 | |
303 if (source.GetFormat() != Orthanc::PixelFormat_Grayscale8 && | |
304 source.GetFormat() != Orthanc::PixelFormat_RGB24 && | |
305 source.GetFormat() != Orthanc::PixelFormat_RGBA32) // 16bpp is not supported (*) | |
306 { | |
307 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); | |
308 } | |
309 | |
310 unsigned int channelsCount = source.GetBytesPerPixel(); // OK tx (*) | |
311 | |
312 std::auto_ptr<Orthanc::ImageAccessor> result(Allocate(source.GetFormat(), | |
313 source.GetWidth() / 2, | |
314 source.GetHeight() / 2)); | |
315 | |
87 | 316 unsigned int bytesPerPixel = source.GetBytesPerPixel(); |
317 | |
0 | 318 for (unsigned int y = 0; y < source.GetHeight() / 2; y++) |
319 { | |
320 uint8_t* q = reinterpret_cast<uint8_t*>(result->GetRow(y)); | |
321 | |
322 for (unsigned int x = 0; x < source.GetWidth() / 2; x++, q += 3) | |
323 { | |
324 for (unsigned int c = 0; c < channelsCount; c++) | |
325 { | |
326 if (smooth) | |
327 { | |
87 | 328 q[c] = SmoothPixelValue(source, 2 * x, 2 * y, c, bytesPerPixel); |
0 | 329 } |
330 else | |
331 { | |
87 | 332 q[c] = GetPixelValue(source, 2 * x, 2 * y, c, 0, 0, bytesPerPixel); |
0 | 333 } |
334 } | |
335 } | |
336 } | |
337 | |
338 return result.release(); | |
339 } | |
340 | |
341 | |
342 Orthanc::ImageAccessor* Clone(const Orthanc::ImageAccessor& accessor) | |
343 { | |
344 std::auto_ptr<Orthanc::ImageAccessor> result(Allocate(accessor.GetFormat(), | |
345 accessor.GetWidth(), | |
346 accessor.GetHeight())); | |
347 Embed(*result, accessor, 0, 0); | |
348 | |
349 return result.release(); | |
350 } | |
351 | |
352 | |
353 Orthanc::ImageAccessor* Render(ITiledPyramid& pyramid, | |
354 unsigned int level) | |
355 { | |
356 std::auto_ptr<Orthanc::ImageAccessor> result(Allocate(pyramid.GetPixelFormat(), | |
357 pyramid.GetLevelWidth(level), | |
358 pyramid.GetLevelHeight(level))); | |
359 | |
360 LOG(INFO) << "Rendering a tiled image of size " << result->GetWidth() << "x" << result->GetHeight(); | |
361 | |
362 for (unsigned int y = 0; y < result->GetHeight(); y += pyramid.GetTileHeight()) | |
363 { | |
364 for (unsigned int x = 0; x < result->GetWidth(); x += pyramid.GetTileWidth()) | |
365 { | |
366 std::auto_ptr<Orthanc::ImageAccessor> tile(pyramid.DecodeTile(level, | |
367 x / pyramid.GetTileWidth(), | |
368 y / pyramid.GetTileHeight())); | |
369 Embed(*result, *tile, x, y); | |
370 } | |
371 } | |
372 | |
373 return result.release(); | |
374 } | |
375 } | |
376 } |