Mercurial > hg > orthanc-wsi
annotate Framework/ImageToolbox.cpp @ 145:0b7e7be7d655
cppcheck
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Mon, 23 Apr 2018 16:21:58 +0200 |
parents | a0f9a3df1110 |
children | 32a94bbb7d05 |
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 | |
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5 * Copyright (C) 2017-2018 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 | |
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22 #include "PrecompiledHeadersWSI.h" |
0 | 23 #include "ImageToolbox.h" |
24 | |
25 #include "Jpeg2000Reader.h" | |
26 #include "Jpeg2000Writer.h" | |
27 | |
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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 | |
71 Orthanc::ImageAccessor targetRegion = target.GetRegion(x, y, w, h); | |
72 Orthanc::ImageAccessor sourceRegion = source.GetRegion(0, 0, w, h); | |
73 Orthanc::ImageProcessing::Copy(targetRegion, sourceRegion); | |
74 } | |
75 | |
76 | |
77 | |
78 void Set(Orthanc::ImageAccessor& image, | |
79 uint8_t r, | |
80 uint8_t g, | |
81 uint8_t b) | |
82 { | |
83 if (image.GetWidth() == 0 || | |
84 image.GetHeight() == 0) | |
85 { | |
86 return; | |
87 } | |
88 | |
89 uint8_t grayscale = (2126 * static_cast<uint16_t>(r) + | |
90 7152 * static_cast<uint16_t>(g) + | |
91 0722 * static_cast<uint16_t>(b)) / 10000; | |
92 | |
93 switch (image.GetFormat()) | |
94 { | |
95 case Orthanc::PixelFormat_Grayscale8: | |
96 { | |
97 for (unsigned int y = 0; y < image.GetHeight(); y++) | |
98 { | |
99 memset(image.GetRow(y), grayscale, image.GetWidth()); | |
100 } | |
101 | |
102 break; | |
103 } | |
104 | |
105 case Orthanc::PixelFormat_RGB24: | |
106 { | |
107 for (unsigned int y = 0; y < image.GetHeight(); y++) | |
108 { | |
109 uint8_t* p = reinterpret_cast<uint8_t*>(image.GetRow(y)); | |
110 for (unsigned int x = 0; x < image.GetWidth(); x++, p += 3) | |
111 { | |
112 p[0] = r; | |
113 p[1] = g; | |
114 p[2] = b; | |
115 } | |
116 } | |
117 | |
118 break; | |
119 } | |
120 | |
121 default: | |
122 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); | |
123 } | |
124 } | |
125 | |
126 | |
127 Orthanc::ImageAccessor* DecodeTile(const std::string& source, | |
128 ImageCompression compression) | |
129 { | |
130 switch (compression) | |
131 { | |
132 case ImageCompression_Png: | |
133 { | |
134 std::auto_ptr<Orthanc::PngReader> reader(new Orthanc::PngReader); | |
135 reader->ReadFromMemory(source); | |
136 return reader.release(); | |
137 } | |
138 | |
139 case ImageCompression_Jpeg: | |
140 { | |
141 std::auto_ptr<Orthanc::JpegReader> reader(new Orthanc::JpegReader); | |
142 reader->ReadFromMemory(source); | |
143 return reader.release(); | |
144 } | |
145 | |
146 case ImageCompression_Jpeg2000: | |
147 { | |
148 std::auto_ptr<Jpeg2000Reader> reader(new Jpeg2000Reader); | |
149 reader->ReadFromMemory(source); | |
150 return reader.release(); | |
151 } | |
152 | |
153 default: | |
154 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
155 } | |
156 } | |
157 | |
158 | |
159 void EncodeTile(std::string& target, | |
160 const Orthanc::ImageAccessor& source, | |
161 ImageCompression compression, | |
162 uint8_t quality) | |
163 { | |
164 if (compression == ImageCompression_None) | |
165 { | |
166 unsigned int pitch = GetBytesPerPixel(source.GetFormat()) * source.GetWidth(); | |
167 target.resize(pitch * source.GetHeight()); | |
168 | |
169 for (unsigned int i = 0; i < source.GetHeight(); i++) | |
170 { | |
171 memcpy(&target[i * pitch], source.GetConstRow(i), pitch); | |
172 } | |
173 } | |
174 else | |
175 { | |
176 std::auto_ptr<Orthanc::IImageWriter> writer; | |
177 | |
178 switch (compression) | |
179 { | |
180 case ImageCompression_Png: | |
181 writer.reset(new Orthanc::PngWriter); | |
182 break; | |
183 | |
184 case ImageCompression_Jpeg: | |
185 writer.reset(new Orthanc::JpegWriter); | |
186 dynamic_cast<Orthanc::JpegWriter&>(*writer).SetQuality(quality); | |
187 break; | |
188 | |
189 case ImageCompression_Jpeg2000: | |
190 writer.reset(new Jpeg2000Writer); | |
191 break; | |
192 | |
193 default: | |
194 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
195 } | |
196 | |
197 writer->WriteToMemory(target, source); | |
198 } | |
199 } | |
200 | |
201 | |
202 void ChangeTileCompression(std::string& target, | |
203 const std::string& source, | |
204 ImageCompression sourceCompression, | |
205 ImageCompression targetCompression, | |
206 uint8_t quality) | |
207 { | |
208 if (sourceCompression == targetCompression) | |
209 { | |
210 target = source; | |
211 } | |
212 else | |
213 { | |
214 std::auto_ptr<Orthanc::ImageAccessor> decoded(DecodeTile(source, sourceCompression)); | |
215 EncodeTile(target, *decoded, targetCompression, quality); | |
216 } | |
217 } | |
218 | |
219 | |
220 static uint8_t GetPixelValue(const Orthanc::ImageAccessor& source, | |
221 unsigned int x, | |
222 unsigned int y, | |
223 unsigned int channel, | |
224 int offsetX, | |
87 | 225 int offsetY, |
226 unsigned int bytesPerPixel) | |
0 | 227 { |
87 | 228 assert(bytesPerPixel == source.GetBytesPerPixel()); |
229 assert(channel < bytesPerPixel); | |
0 | 230 assert(source.GetFormat() == Orthanc::PixelFormat_Grayscale8 || |
231 source.GetFormat() == Orthanc::PixelFormat_RGB24 || | |
232 source.GetFormat() == Orthanc::PixelFormat_RGBA32); // 16bpp is unsupported | |
233 | |
234 if (static_cast<int>(x) + offsetX < 0) | |
235 { | |
236 x = 0; | |
237 } | |
238 else | |
239 { | |
240 x += offsetX; | |
241 if (x >= source.GetWidth()) | |
242 { | |
243 x = source.GetWidth() - 1; | |
244 } | |
245 } | |
246 | |
247 if (static_cast<int>(y) + offsetY < 0) | |
248 { | |
249 y = 0; | |
250 } | |
251 else | |
252 { | |
253 y += offsetY; | |
254 if (y >= source.GetHeight()) | |
255 { | |
256 y = source.GetHeight() - 1; | |
257 } | |
258 } | |
259 | |
260 return *(reinterpret_cast<const uint8_t*>(source.GetConstBuffer()) + | |
87 | 261 y * source.GetPitch() + x * bytesPerPixel + channel); |
0 | 262 } |
263 | |
264 | |
265 static uint8_t SmoothPixelValue(const Orthanc::ImageAccessor& source, | |
266 unsigned int x, | |
267 unsigned int y, | |
87 | 268 unsigned int channel, |
269 unsigned int bytesPerPixel) | |
0 | 270 { |
271 static const uint32_t kernel[5] = { 1, 4, 6, 4, 1 }; | |
272 static const uint32_t normalization = 2 * (1 + 4 + 6 + 4 + 1); | |
273 | |
274 uint32_t accumulator = 0; | |
275 | |
276 // Horizontal smoothing | |
277 for (int offset = -2; offset <= 2; offset++) | |
278 { | |
87 | 279 accumulator += kernel[offset + 2] * GetPixelValue(source, x, y, channel, offset, 0, bytesPerPixel); |
0 | 280 } |
281 | |
282 // Vertical smoothing | |
283 for (int offset = -2; offset <= 2; offset++) | |
284 { | |
87 | 285 accumulator += kernel[offset + 2] * GetPixelValue(source, x, y, channel, 0, offset, bytesPerPixel); |
0 | 286 } |
287 | |
288 return static_cast<uint8_t>(accumulator / normalization); | |
289 } | |
290 | |
291 | |
292 Orthanc::ImageAccessor* Halve(const Orthanc::ImageAccessor& source, | |
293 bool smooth) | |
294 { | |
295 if (source.GetWidth() % 2 == 1 || | |
296 source.GetHeight() % 2 == 1) | |
297 { | |
298 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageSize); | |
299 } | |
300 | |
301 if (source.GetFormat() != Orthanc::PixelFormat_Grayscale8 && | |
302 source.GetFormat() != Orthanc::PixelFormat_RGB24 && | |
303 source.GetFormat() != Orthanc::PixelFormat_RGBA32) // 16bpp is not supported (*) | |
304 { | |
305 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); | |
306 } | |
307 | |
308 unsigned int channelsCount = source.GetBytesPerPixel(); // OK tx (*) | |
309 | |
310 std::auto_ptr<Orthanc::ImageAccessor> result(Allocate(source.GetFormat(), | |
311 source.GetWidth() / 2, | |
312 source.GetHeight() / 2)); | |
313 | |
87 | 314 unsigned int bytesPerPixel = source.GetBytesPerPixel(); |
315 | |
0 | 316 for (unsigned int y = 0; y < source.GetHeight() / 2; y++) |
317 { | |
318 uint8_t* q = reinterpret_cast<uint8_t*>(result->GetRow(y)); | |
319 | |
320 for (unsigned int x = 0; x < source.GetWidth() / 2; x++, q += 3) | |
321 { | |
322 for (unsigned int c = 0; c < channelsCount; c++) | |
323 { | |
324 if (smooth) | |
325 { | |
87 | 326 q[c] = SmoothPixelValue(source, 2 * x, 2 * y, c, bytesPerPixel); |
0 | 327 } |
328 else | |
329 { | |
87 | 330 q[c] = GetPixelValue(source, 2 * x, 2 * y, c, 0, 0, bytesPerPixel); |
0 | 331 } |
332 } | |
333 } | |
334 } | |
335 | |
336 return result.release(); | |
337 } | |
338 | |
339 | |
340 Orthanc::ImageAccessor* Clone(const Orthanc::ImageAccessor& accessor) | |
341 { | |
342 std::auto_ptr<Orthanc::ImageAccessor> result(Allocate(accessor.GetFormat(), | |
343 accessor.GetWidth(), | |
344 accessor.GetHeight())); | |
345 Embed(*result, accessor, 0, 0); | |
346 | |
347 return result.release(); | |
348 } | |
349 | |
350 | |
351 Orthanc::ImageAccessor* Render(ITiledPyramid& pyramid, | |
352 unsigned int level) | |
353 { | |
354 std::auto_ptr<Orthanc::ImageAccessor> result(Allocate(pyramid.GetPixelFormat(), | |
355 pyramid.GetLevelWidth(level), | |
356 pyramid.GetLevelHeight(level))); | |
357 | |
358 LOG(INFO) << "Rendering a tiled image of size " << result->GetWidth() << "x" << result->GetHeight(); | |
359 | |
360 for (unsigned int y = 0; y < result->GetHeight(); y += pyramid.GetTileHeight()) | |
361 { | |
362 for (unsigned int x = 0; x < result->GetWidth(); x += pyramid.GetTileWidth()) | |
363 { | |
364 std::auto_ptr<Orthanc::ImageAccessor> tile(pyramid.DecodeTile(level, | |
365 x / pyramid.GetTileWidth(), | |
366 y / pyramid.GetTileHeight())); | |
367 Embed(*result, *tile, x, y); | |
368 } | |
369 } | |
370 | |
371 return result.release(); | |
372 } | |
373 } | |
374 } |