Mercurial > hg > orthanc-wsi
annotate Framework/ImageToolbox.cpp @ 59:7a3853d51c45
Move "Framework/Orthanc/" as "Resources/Orthanc/"
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Fri, 25 Nov 2016 16:34:34 +0100 |
| parents | 7a88c614be04 |
| children | 3d83d34cd4db |
| rev | line source |
|---|---|
| 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:
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changeset
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21 #include "PrecompiledHeadersWSI.h" |
| 0 | 22 #include "ImageToolbox.h" |
| 23 | |
| 24 #include "Jpeg2000Reader.h" | |
| 25 #include "Jpeg2000Writer.h" | |
| 26 | |
|
59
7a3853d51c45
Move "Framework/Orthanc/" as "Resources/Orthanc/"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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27 #include "../Resources/Orthanc/Core/OrthancException.h" |
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7a3853d51c45
Move "Framework/Orthanc/" as "Resources/Orthanc/"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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28 #include "../Resources/Orthanc/Core/Images/ImageProcessing.h" |
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7a3853d51c45
Move "Framework/Orthanc/" as "Resources/Orthanc/"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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29 #include "../Resources/Orthanc/Core/Images/PngReader.h" |
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7a3853d51c45
Move "Framework/Orthanc/" as "Resources/Orthanc/"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
16
diff
changeset
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30 #include "../Resources/Orthanc/Core/Images/PngWriter.h" |
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7a3853d51c45
Move "Framework/Orthanc/" as "Resources/Orthanc/"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
16
diff
changeset
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31 #include "../Resources/Orthanc/Core/Images/JpegReader.h" |
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7a3853d51c45
Move "Framework/Orthanc/" as "Resources/Orthanc/"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
16
diff
changeset
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32 #include "../Resources/Orthanc/Core/Images/JpegWriter.h" |
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7a3853d51c45
Move "Framework/Orthanc/" as "Resources/Orthanc/"
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
16
diff
changeset
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33 #include "../Resources/Orthanc/Core/Logging.h" |
| 0 | 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 } |