Mercurial > hg > orthanc-wsi
annotate Framework/ImageToolbox.cpp @ 209:628201cb48c2
fix build
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 06 Nov 2020 17:44:35 +0100 |
parents | a1c265cb2174 |
children | cab272485c38 |
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) 2017-2020 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 <Compatibility.h> // For std::unique_ptr |
192 | 29 #include <OrthancException.h> |
30 #include <Images/ImageProcessing.h> | |
31 #include <Images/PngReader.h> | |
32 #include <Images/PngWriter.h> | |
33 #include <Images/JpegReader.h> | |
34 #include <Images/JpegWriter.h> | |
35 #include <Logging.h> | |
0 | 36 |
37 #include <string.h> | |
38 #include <memory> | |
39 | |
40 | |
41 namespace OrthancWSI | |
42 { | |
43 namespace ImageToolbox | |
44 { | |
45 Orthanc::ImageAccessor* Allocate(Orthanc::PixelFormat format, | |
46 unsigned int width, | |
47 unsigned int height) | |
48 { | |
49 return new Orthanc::Image(format, width, height, false); | |
50 } | |
51 | |
52 | |
53 void Embed(Orthanc::ImageAccessor& target, | |
54 const Orthanc::ImageAccessor& source, | |
55 unsigned int x, | |
56 unsigned int y) | |
57 { | |
58 if (target.GetFormat() != source.GetFormat()) | |
59 { | |
60 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageFormat); | |
61 } | |
62 | |
63 if (x >= target.GetWidth() || | |
64 y >= target.GetHeight()) | |
65 { | |
66 return; | |
67 } | |
68 | |
69 unsigned int h = std::min(source.GetHeight(), target.GetHeight() - y); | |
70 unsigned int w = std::min(source.GetWidth(), target.GetWidth() - x); | |
71 | |
154 | 72 Orthanc::ImageAccessor targetRegion, sourceRegion; |
73 target.GetRegion(targetRegion, x, y, w, h); | |
74 source.GetRegion(sourceRegion, 0, 0, w, h); | |
75 | |
0 | 76 Orthanc::ImageProcessing::Copy(targetRegion, sourceRegion); |
77 } | |
78 | |
79 | |
80 | |
81 void Set(Orthanc::ImageAccessor& image, | |
82 uint8_t r, | |
83 uint8_t g, | |
84 uint8_t b) | |
85 { | |
86 if (image.GetWidth() == 0 || | |
87 image.GetHeight() == 0) | |
88 { | |
89 return; | |
90 } | |
91 | |
92 uint8_t grayscale = (2126 * static_cast<uint16_t>(r) + | |
93 7152 * static_cast<uint16_t>(g) + | |
94 0722 * static_cast<uint16_t>(b)) / 10000; | |
95 | |
209 | 96 const unsigned int width = image.GetWidth(); |
97 const unsigned int height = image.GetHeight(); | |
98 | |
0 | 99 switch (image.GetFormat()) |
100 { | |
101 case Orthanc::PixelFormat_Grayscale8: | |
102 { | |
209 | 103 for (unsigned int y = 0; y < height; y++) |
0 | 104 { |
209 | 105 memset(image.GetRow(y), grayscale, width); |
0 | 106 } |
107 | |
108 break; | |
109 } | |
110 | |
111 case Orthanc::PixelFormat_RGB24: | |
112 { | |
209 | 113 for (unsigned int y = 0; y < height; y++) |
0 | 114 { |
115 uint8_t* p = reinterpret_cast<uint8_t*>(image.GetRow(y)); | |
209 | 116 for (unsigned int x = 0; x < width; x++, p += 3) |
0 | 117 { |
118 p[0] = r; | |
119 p[1] = g; | |
120 p[2] = b; | |
121 } | |
122 } | |
123 | |
124 break; | |
125 } | |
126 | |
127 default: | |
128 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); | |
129 } | |
130 } | |
131 | |
132 | |
133 Orthanc::ImageAccessor* DecodeTile(const std::string& source, | |
134 ImageCompression compression) | |
135 { | |
136 switch (compression) | |
137 { | |
138 case ImageCompression_Png: | |
139 { | |
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140 std::unique_ptr<Orthanc::PngReader> reader(new Orthanc::PngReader); |
0 | 141 reader->ReadFromMemory(source); |
142 return reader.release(); | |
143 } | |
144 | |
145 case ImageCompression_Jpeg: | |
146 { | |
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147 std::unique_ptr<Orthanc::JpegReader> reader(new Orthanc::JpegReader); |
0 | 148 reader->ReadFromMemory(source); |
149 return reader.release(); | |
150 } | |
151 | |
152 case ImageCompression_Jpeg2000: | |
153 { | |
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154 std::unique_ptr<Jpeg2000Reader> reader(new Jpeg2000Reader); |
0 | 155 reader->ReadFromMemory(source); |
156 return reader.release(); | |
157 } | |
158 | |
159 default: | |
160 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
161 } | |
162 } | |
163 | |
164 | |
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165 Orthanc::ImageAccessor* DecodeRawTile(const std::string& source, |
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166 Orthanc::PixelFormat format, |
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167 unsigned int width, |
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168 unsigned int height) |
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169 { |
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170 unsigned int bpp = GetBytesPerPixel(format); |
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171 |
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172 if (bpp * width * height != source.size()) |
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173 { |
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174 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageSize); |
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175 } |
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176 |
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177 Orthanc::ImageAccessor accessor; |
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178 accessor.AssignReadOnly(format, width, height, bpp * width, source.empty() ? NULL : source.c_str()); |
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179 |
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180 return Orthanc::Image::Clone(accessor); |
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181 } |
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182 |
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183 |
0 | 184 void EncodeTile(std::string& target, |
185 const Orthanc::ImageAccessor& source, | |
186 ImageCompression compression, | |
187 uint8_t quality) | |
188 { | |
189 if (compression == ImageCompression_None) | |
190 { | |
191 unsigned int pitch = GetBytesPerPixel(source.GetFormat()) * source.GetWidth(); | |
192 target.resize(pitch * source.GetHeight()); | |
193 | |
194 for (unsigned int i = 0; i < source.GetHeight(); i++) | |
195 { | |
196 memcpy(&target[i * pitch], source.GetConstRow(i), pitch); | |
197 } | |
198 } | |
199 else | |
200 { | |
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201 std::unique_ptr<Orthanc::IImageWriter> writer; |
0 | 202 |
203 switch (compression) | |
204 { | |
205 case ImageCompression_Png: | |
206 writer.reset(new Orthanc::PngWriter); | |
207 break; | |
208 | |
209 case ImageCompression_Jpeg: | |
210 writer.reset(new Orthanc::JpegWriter); | |
211 dynamic_cast<Orthanc::JpegWriter&>(*writer).SetQuality(quality); | |
212 break; | |
213 | |
214 case ImageCompression_Jpeg2000: | |
215 writer.reset(new Jpeg2000Writer); | |
216 break; | |
217 | |
218 default: | |
219 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
220 } | |
221 | |
222 writer->WriteToMemory(target, source); | |
223 } | |
224 } | |
225 | |
226 | |
227 void ChangeTileCompression(std::string& target, | |
228 const std::string& source, | |
229 ImageCompression sourceCompression, | |
230 ImageCompression targetCompression, | |
231 uint8_t quality) | |
232 { | |
233 if (sourceCompression == targetCompression) | |
234 { | |
235 target = source; | |
236 } | |
237 else | |
238 { | |
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239 std::unique_ptr<Orthanc::ImageAccessor> decoded(DecodeTile(source, sourceCompression)); |
0 | 240 EncodeTile(target, *decoded, targetCompression, quality); |
241 } | |
242 } | |
243 | |
244 | |
245 static uint8_t GetPixelValue(const Orthanc::ImageAccessor& source, | |
246 unsigned int x, | |
247 unsigned int y, | |
248 unsigned int channel, | |
249 int offsetX, | |
87 | 250 int offsetY, |
251 unsigned int bytesPerPixel) | |
0 | 252 { |
87 | 253 assert(bytesPerPixel == source.GetBytesPerPixel()); |
254 assert(channel < bytesPerPixel); | |
0 | 255 assert(source.GetFormat() == Orthanc::PixelFormat_Grayscale8 || |
256 source.GetFormat() == Orthanc::PixelFormat_RGB24 || | |
257 source.GetFormat() == Orthanc::PixelFormat_RGBA32); // 16bpp is unsupported | |
258 | |
259 if (static_cast<int>(x) + offsetX < 0) | |
260 { | |
261 x = 0; | |
262 } | |
263 else | |
264 { | |
265 x += offsetX; | |
266 if (x >= source.GetWidth()) | |
267 { | |
268 x = source.GetWidth() - 1; | |
269 } | |
270 } | |
271 | |
272 if (static_cast<int>(y) + offsetY < 0) | |
273 { | |
274 y = 0; | |
275 } | |
276 else | |
277 { | |
278 y += offsetY; | |
279 if (y >= source.GetHeight()) | |
280 { | |
281 y = source.GetHeight() - 1; | |
282 } | |
283 } | |
284 | |
285 return *(reinterpret_cast<const uint8_t*>(source.GetConstBuffer()) + | |
87 | 286 y * source.GetPitch() + x * bytesPerPixel + channel); |
0 | 287 } |
288 | |
289 | |
290 static uint8_t SmoothPixelValue(const Orthanc::ImageAccessor& source, | |
291 unsigned int x, | |
292 unsigned int y, | |
87 | 293 unsigned int channel, |
294 unsigned int bytesPerPixel) | |
0 | 295 { |
296 static const uint32_t kernel[5] = { 1, 4, 6, 4, 1 }; | |
297 static const uint32_t normalization = 2 * (1 + 4 + 6 + 4 + 1); | |
298 | |
299 uint32_t accumulator = 0; | |
300 | |
301 // Horizontal smoothing | |
302 for (int offset = -2; offset <= 2; offset++) | |
303 { | |
87 | 304 accumulator += kernel[offset + 2] * GetPixelValue(source, x, y, channel, offset, 0, bytesPerPixel); |
0 | 305 } |
306 | |
307 // Vertical smoothing | |
308 for (int offset = -2; offset <= 2; offset++) | |
309 { | |
87 | 310 accumulator += kernel[offset + 2] * GetPixelValue(source, x, y, channel, 0, offset, bytesPerPixel); |
0 | 311 } |
312 | |
313 return static_cast<uint8_t>(accumulator / normalization); | |
314 } | |
315 | |
316 | |
317 Orthanc::ImageAccessor* Halve(const Orthanc::ImageAccessor& source, | |
318 bool smooth) | |
319 { | |
320 if (source.GetWidth() % 2 == 1 || | |
321 source.GetHeight() % 2 == 1) | |
322 { | |
323 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageSize); | |
324 } | |
325 | |
326 if (source.GetFormat() != Orthanc::PixelFormat_Grayscale8 && | |
327 source.GetFormat() != Orthanc::PixelFormat_RGB24 && | |
328 source.GetFormat() != Orthanc::PixelFormat_RGBA32) // 16bpp is not supported (*) | |
329 { | |
330 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); | |
331 } | |
332 | |
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333 const unsigned int bytesPerPixel = source.GetBytesPerPixel(); // Corresponds to the number of channels tx (*) |
0 | 334 |
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335 std::unique_ptr<Orthanc::ImageAccessor> target(Allocate(source.GetFormat(), |
209 | 336 source.GetWidth() / 2, |
337 source.GetHeight() / 2)); | |
0 | 338 |
209 | 339 const unsigned int width = target->GetWidth(); |
340 const unsigned int height = target->GetHeight(); | |
341 | |
342 for (unsigned int y = 0; y < height; y++) | |
0 | 343 { |
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344 uint8_t* q = reinterpret_cast<uint8_t*>(target->GetRow(y)); |
0 | 345 |
209 | 346 for (unsigned int x = 0; x < width; x++, q += bytesPerPixel) |
0 | 347 { |
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348 for (unsigned int c = 0; c < bytesPerPixel; c++) |
0 | 349 { |
350 if (smooth) | |
351 { | |
87 | 352 q[c] = SmoothPixelValue(source, 2 * x, 2 * y, c, bytesPerPixel); |
0 | 353 } |
354 else | |
355 { | |
87 | 356 q[c] = GetPixelValue(source, 2 * x, 2 * y, c, 0, 0, bytesPerPixel); |
0 | 357 } |
358 } | |
359 } | |
360 } | |
361 | |
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362 return target.release(); |
0 | 363 } |
364 | |
365 | |
366 Orthanc::ImageAccessor* Clone(const Orthanc::ImageAccessor& accessor) | |
367 { | |
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368 std::unique_ptr<Orthanc::ImageAccessor> result(Allocate(accessor.GetFormat(), |
209 | 369 accessor.GetWidth(), |
370 accessor.GetHeight())); | |
0 | 371 Embed(*result, accessor, 0, 0); |
372 | |
373 return result.release(); | |
374 } | |
375 | |
376 | |
377 Orthanc::ImageAccessor* Render(ITiledPyramid& pyramid, | |
378 unsigned int level) | |
379 { | |
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380 std::unique_ptr<Orthanc::ImageAccessor> result(Allocate(pyramid.GetPixelFormat(), |
209 | 381 pyramid.GetLevelWidth(level), |
382 pyramid.GetLevelHeight(level))); | |
383 | |
384 LOG(INFO) << "Rendering a tiled image of size " | |
385 << result->GetWidth() << "x" << result->GetHeight(); | |
0 | 386 |
209 | 387 const unsigned int width = result->GetWidth(); |
388 const unsigned int height = result->GetHeight(); | |
389 | |
390 for (unsigned int y = 0; y < height; y += pyramid.GetTileHeight()) | |
0 | 391 { |
209 | 392 for (unsigned int x = 0; x < width; x += pyramid.GetTileWidth()) |
0 | 393 { |
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394 std::unique_ptr<Orthanc::ImageAccessor> tile(pyramid.DecodeTile(level, |
0 | 395 x / pyramid.GetTileWidth(), |
396 y / pyramid.GetTileHeight())); | |
397 Embed(*result, *tile, x, y); | |
398 } | |
399 } | |
400 | |
401 return result.release(); | |
402 } | |
403 } | |
404 } |