Mercurial > hg > orthanc-wsi
annotate Framework/ImageToolbox.cpp @ 159:e436719ee2f3
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Sat, 26 Jan 2019 09:42:48 +0100 |
| parents | 6b8ccfc02051 |
| children | 605247fc8758 |
| 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 | |
| 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 | |
|
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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 | |
| 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 } |