Mercurial > hg > orthanc-wsi
annotate Framework/ImageToolbox.cpp @ 16:7a88c614be04
preparing for precompiled headers
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Thu, 27 Oct 2016 11:01:26 +0200 |
parents | 4a7a53257c7d |
children | 7a3853d51c45 |
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 | |
5 * | |
6 * This program is free software: you can redistribute it and/or | |
7 * modify it under the terms of the GNU Affero General Public License | |
8 * as published by the Free Software Foundation, either version 3 of | |
9 * the License, or (at your option) any later version. | |
10 * | |
11 * This program is distributed in the hope that it will be useful, but | |
12 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 * Affero General Public License for more details. | |
15 * | |
16 * You should have received a copy of the GNU Affero General Public License | |
17 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
18 **/ | |
19 | |
20 | |
16
7a88c614be04
preparing for precompiled headers
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
0
diff
changeset
|
21 #include "PrecompiledHeadersWSI.h" |
0 | 22 #include "ImageToolbox.h" |
23 | |
24 #include "Jpeg2000Reader.h" | |
25 #include "Jpeg2000Writer.h" | |
26 | |
27 #include "Orthanc/Core/OrthancException.h" | |
28 #include "Orthanc/Core/Images/ImageProcessing.h" | |
29 #include "Orthanc/Core/Images/PngReader.h" | |
30 #include "Orthanc/Core/Images/PngWriter.h" | |
31 #include "Orthanc/Core/Images/JpegReader.h" | |
32 #include "Orthanc/Core/Images/JpegWriter.h" | |
33 #include "Orthanc/Core/Logging.h" | |
34 | |
35 #include <string.h> | |
36 #include <memory> | |
37 | |
38 | |
39 namespace OrthancWSI | |
40 { | |
41 namespace ImageToolbox | |
42 { | |
43 Orthanc::ImageAccessor* Allocate(Orthanc::PixelFormat format, | |
44 unsigned int width, | |
45 unsigned int height) | |
46 { | |
47 return new Orthanc::Image(format, width, height, false); | |
48 } | |
49 | |
50 | |
51 void Embed(Orthanc::ImageAccessor& target, | |
52 const Orthanc::ImageAccessor& source, | |
53 unsigned int x, | |
54 unsigned int y) | |
55 { | |
56 if (target.GetFormat() != source.GetFormat()) | |
57 { | |
58 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageFormat); | |
59 } | |
60 | |
61 if (x >= target.GetWidth() || | |
62 y >= target.GetHeight()) | |
63 { | |
64 return; | |
65 } | |
66 | |
67 unsigned int h = std::min(source.GetHeight(), target.GetHeight() - y); | |
68 unsigned int w = std::min(source.GetWidth(), target.GetWidth() - x); | |
69 | |
70 Orthanc::ImageAccessor targetRegion = target.GetRegion(x, y, w, h); | |
71 Orthanc::ImageAccessor sourceRegion = source.GetRegion(0, 0, w, h); | |
72 Orthanc::ImageProcessing::Copy(targetRegion, sourceRegion); | |
73 } | |
74 | |
75 | |
76 | |
77 void Set(Orthanc::ImageAccessor& image, | |
78 uint8_t r, | |
79 uint8_t g, | |
80 uint8_t b) | |
81 { | |
82 if (image.GetWidth() == 0 || | |
83 image.GetHeight() == 0) | |
84 { | |
85 return; | |
86 } | |
87 | |
88 uint8_t grayscale = (2126 * static_cast<uint16_t>(r) + | |
89 7152 * static_cast<uint16_t>(g) + | |
90 0722 * static_cast<uint16_t>(b)) / 10000; | |
91 | |
92 switch (image.GetFormat()) | |
93 { | |
94 case Orthanc::PixelFormat_Grayscale8: | |
95 { | |
96 for (unsigned int y = 0; y < image.GetHeight(); y++) | |
97 { | |
98 memset(image.GetRow(y), grayscale, image.GetWidth()); | |
99 } | |
100 | |
101 break; | |
102 } | |
103 | |
104 case Orthanc::PixelFormat_RGB24: | |
105 { | |
106 for (unsigned int y = 0; y < image.GetHeight(); y++) | |
107 { | |
108 uint8_t* p = reinterpret_cast<uint8_t*>(image.GetRow(y)); | |
109 for (unsigned int x = 0; x < image.GetWidth(); x++, p += 3) | |
110 { | |
111 p[0] = r; | |
112 p[1] = g; | |
113 p[2] = b; | |
114 } | |
115 } | |
116 | |
117 break; | |
118 } | |
119 | |
120 default: | |
121 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); | |
122 } | |
123 } | |
124 | |
125 | |
126 Orthanc::ImageAccessor* DecodeTile(const std::string& source, | |
127 ImageCompression compression) | |
128 { | |
129 switch (compression) | |
130 { | |
131 case ImageCompression_Png: | |
132 { | |
133 std::auto_ptr<Orthanc::PngReader> reader(new Orthanc::PngReader); | |
134 reader->ReadFromMemory(source); | |
135 return reader.release(); | |
136 } | |
137 | |
138 case ImageCompression_Jpeg: | |
139 { | |
140 std::auto_ptr<Orthanc::JpegReader> reader(new Orthanc::JpegReader); | |
141 reader->ReadFromMemory(source); | |
142 return reader.release(); | |
143 } | |
144 | |
145 case ImageCompression_Jpeg2000: | |
146 { | |
147 std::auto_ptr<Jpeg2000Reader> reader(new Jpeg2000Reader); | |
148 reader->ReadFromMemory(source); | |
149 return reader.release(); | |
150 } | |
151 | |
152 default: | |
153 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
154 } | |
155 } | |
156 | |
157 | |
158 void EncodeTile(std::string& target, | |
159 const Orthanc::ImageAccessor& source, | |
160 ImageCompression compression, | |
161 uint8_t quality) | |
162 { | |
163 if (compression == ImageCompression_None) | |
164 { | |
165 unsigned int pitch = GetBytesPerPixel(source.GetFormat()) * source.GetWidth(); | |
166 target.resize(pitch * source.GetHeight()); | |
167 | |
168 for (unsigned int i = 0; i < source.GetHeight(); i++) | |
169 { | |
170 memcpy(&target[i * pitch], source.GetConstRow(i), pitch); | |
171 } | |
172 } | |
173 else | |
174 { | |
175 std::auto_ptr<Orthanc::IImageWriter> writer; | |
176 | |
177 switch (compression) | |
178 { | |
179 case ImageCompression_Png: | |
180 writer.reset(new Orthanc::PngWriter); | |
181 break; | |
182 | |
183 case ImageCompression_Jpeg: | |
184 writer.reset(new Orthanc::JpegWriter); | |
185 dynamic_cast<Orthanc::JpegWriter&>(*writer).SetQuality(quality); | |
186 break; | |
187 | |
188 case ImageCompression_Jpeg2000: | |
189 writer.reset(new Jpeg2000Writer); | |
190 break; | |
191 | |
192 default: | |
193 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
194 } | |
195 | |
196 writer->WriteToMemory(target, source); | |
197 } | |
198 } | |
199 | |
200 | |
201 void ChangeTileCompression(std::string& target, | |
202 const std::string& source, | |
203 ImageCompression sourceCompression, | |
204 ImageCompression targetCompression, | |
205 uint8_t quality) | |
206 { | |
207 if (sourceCompression == targetCompression) | |
208 { | |
209 target = source; | |
210 } | |
211 else | |
212 { | |
213 std::auto_ptr<Orthanc::ImageAccessor> decoded(DecodeTile(source, sourceCompression)); | |
214 EncodeTile(target, *decoded, targetCompression, quality); | |
215 } | |
216 } | |
217 | |
218 | |
219 static uint8_t GetPixelValue(const Orthanc::ImageAccessor& source, | |
220 unsigned int x, | |
221 unsigned int y, | |
222 unsigned int channel, | |
223 int offsetX, | |
224 int offsetY) | |
225 { | |
226 assert(channel < source.GetBytesPerPixel()); | |
227 assert(source.GetFormat() == Orthanc::PixelFormat_Grayscale8 || | |
228 source.GetFormat() == Orthanc::PixelFormat_RGB24 || | |
229 source.GetFormat() == Orthanc::PixelFormat_RGBA32); // 16bpp is unsupported | |
230 | |
231 if (static_cast<int>(x) + offsetX < 0) | |
232 { | |
233 x = 0; | |
234 } | |
235 else | |
236 { | |
237 x += offsetX; | |
238 if (x >= source.GetWidth()) | |
239 { | |
240 x = source.GetWidth() - 1; | |
241 } | |
242 } | |
243 | |
244 if (static_cast<int>(y) + offsetY < 0) | |
245 { | |
246 y = 0; | |
247 } | |
248 else | |
249 { | |
250 y += offsetY; | |
251 if (y >= source.GetHeight()) | |
252 { | |
253 y = source.GetHeight() - 1; | |
254 } | |
255 } | |
256 | |
257 return *(reinterpret_cast<const uint8_t*>(source.GetConstBuffer()) + | |
258 y * source.GetPitch() + x * source.GetBytesPerPixel() + channel); | |
259 } | |
260 | |
261 | |
262 static uint8_t SmoothPixelValue(const Orthanc::ImageAccessor& source, | |
263 unsigned int x, | |
264 unsigned int y, | |
265 unsigned int channel) | |
266 { | |
267 static const uint32_t kernel[5] = { 1, 4, 6, 4, 1 }; | |
268 static const uint32_t normalization = 2 * (1 + 4 + 6 + 4 + 1); | |
269 | |
270 uint32_t accumulator = 0; | |
271 | |
272 // Horizontal smoothing | |
273 for (int offset = -2; offset <= 2; offset++) | |
274 { | |
275 accumulator += kernel[offset + 2] * GetPixelValue(source, x, y, channel, offset, 0); | |
276 } | |
277 | |
278 // Vertical smoothing | |
279 for (int offset = -2; offset <= 2; offset++) | |
280 { | |
281 accumulator += kernel[offset + 2] * GetPixelValue(source, x, y, channel, 0, offset); | |
282 } | |
283 | |
284 return static_cast<uint8_t>(accumulator / normalization); | |
285 } | |
286 | |
287 | |
288 Orthanc::ImageAccessor* Halve(const Orthanc::ImageAccessor& source, | |
289 bool smooth) | |
290 { | |
291 if (source.GetWidth() % 2 == 1 || | |
292 source.GetHeight() % 2 == 1) | |
293 { | |
294 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageSize); | |
295 } | |
296 | |
297 if (source.GetFormat() != Orthanc::PixelFormat_Grayscale8 && | |
298 source.GetFormat() != Orthanc::PixelFormat_RGB24 && | |
299 source.GetFormat() != Orthanc::PixelFormat_RGBA32) // 16bpp is not supported (*) | |
300 { | |
301 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); | |
302 } | |
303 | |
304 unsigned int channelsCount = source.GetBytesPerPixel(); // OK tx (*) | |
305 | |
306 std::auto_ptr<Orthanc::ImageAccessor> result(Allocate(source.GetFormat(), | |
307 source.GetWidth() / 2, | |
308 source.GetHeight() / 2)); | |
309 | |
310 for (unsigned int y = 0; y < source.GetHeight() / 2; y++) | |
311 { | |
312 uint8_t* q = reinterpret_cast<uint8_t*>(result->GetRow(y)); | |
313 | |
314 for (unsigned int x = 0; x < source.GetWidth() / 2; x++, q += 3) | |
315 { | |
316 for (unsigned int c = 0; c < channelsCount; c++) | |
317 { | |
318 if (smooth) | |
319 { | |
320 q[c] = SmoothPixelValue(source, 2 * x, 2 * y, c); | |
321 } | |
322 else | |
323 { | |
324 q[c] = GetPixelValue(source, 2 * x, 2 * y, c, 0, 0); | |
325 } | |
326 } | |
327 } | |
328 } | |
329 | |
330 return result.release(); | |
331 } | |
332 | |
333 | |
334 Orthanc::ImageAccessor* Clone(const Orthanc::ImageAccessor& accessor) | |
335 { | |
336 std::auto_ptr<Orthanc::ImageAccessor> result(Allocate(accessor.GetFormat(), | |
337 accessor.GetWidth(), | |
338 accessor.GetHeight())); | |
339 Embed(*result, accessor, 0, 0); | |
340 | |
341 return result.release(); | |
342 } | |
343 | |
344 | |
345 Orthanc::ImageAccessor* Render(ITiledPyramid& pyramid, | |
346 unsigned int level) | |
347 { | |
348 std::auto_ptr<Orthanc::ImageAccessor> result(Allocate(pyramid.GetPixelFormat(), | |
349 pyramid.GetLevelWidth(level), | |
350 pyramid.GetLevelHeight(level))); | |
351 | |
352 LOG(INFO) << "Rendering a tiled image of size " << result->GetWidth() << "x" << result->GetHeight(); | |
353 | |
354 for (unsigned int y = 0; y < result->GetHeight(); y += pyramid.GetTileHeight()) | |
355 { | |
356 for (unsigned int x = 0; x < result->GetWidth(); x += pyramid.GetTileWidth()) | |
357 { | |
358 std::auto_ptr<Orthanc::ImageAccessor> tile(pyramid.DecodeTile(level, | |
359 x / pyramid.GetTileWidth(), | |
360 y / pyramid.GetTileHeight())); | |
361 Embed(*result, *tile, x, y); | |
362 } | |
363 } | |
364 | |
365 return result.release(); | |
366 } | |
367 } | |
368 } |