Mercurial > hg > orthanc-wsi
annotate Framework/ImageToolbox.cpp @ 216:c35a3a0627b9
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Tue, 12 Jan 2021 10:21:36 +0100 |
| parents | 1e864138f0da |
| children | 20bc074ec19a |
| 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 | |
|
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5 * Copyright (C) 2017-2021 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 | |
| 216 | 53 void Embed(const Orthanc::ImageAccessor& target, |
| 0 | 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 | |
| 210 | 194 const unsigned int height = source.GetHeight(); |
| 195 for (unsigned int i = 0; i < height; i++) | |
| 0 | 196 { |
| 197 memcpy(&target[i * pitch], source.GetConstRow(i), pitch); | |
| 198 } | |
| 199 } | |
| 200 else | |
| 201 { | |
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202 std::unique_ptr<Orthanc::IImageWriter> writer; |
| 0 | 203 |
| 204 switch (compression) | |
| 205 { | |
| 206 case ImageCompression_Png: | |
| 207 writer.reset(new Orthanc::PngWriter); | |
| 208 break; | |
| 209 | |
| 210 case ImageCompression_Jpeg: | |
| 211 writer.reset(new Orthanc::JpegWriter); | |
| 212 dynamic_cast<Orthanc::JpegWriter&>(*writer).SetQuality(quality); | |
| 213 break; | |
| 214 | |
| 215 case ImageCompression_Jpeg2000: | |
| 216 writer.reset(new Jpeg2000Writer); | |
| 217 break; | |
| 218 | |
| 219 default: | |
| 220 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
| 221 } | |
| 222 | |
| 211 | 223 Orthanc::IImageWriter::WriteToMemory(*writer, target, source); |
| 0 | 224 } |
| 225 } | |
| 226 | |
| 227 | |
| 228 void ChangeTileCompression(std::string& target, | |
| 229 const std::string& source, | |
| 230 ImageCompression sourceCompression, | |
| 231 ImageCompression targetCompression, | |
| 232 uint8_t quality) | |
| 233 { | |
| 234 if (sourceCompression == targetCompression) | |
| 235 { | |
| 236 target = source; | |
| 237 } | |
| 238 else | |
| 239 { | |
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240 std::unique_ptr<Orthanc::ImageAccessor> decoded(DecodeTile(source, sourceCompression)); |
| 0 | 241 EncodeTile(target, *decoded, targetCompression, quality); |
| 242 } | |
| 243 } | |
| 244 | |
| 245 | |
| 246 static uint8_t GetPixelValue(const Orthanc::ImageAccessor& source, | |
| 247 unsigned int x, | |
| 248 unsigned int y, | |
| 249 unsigned int channel, | |
| 250 int offsetX, | |
| 87 | 251 int offsetY, |
| 252 unsigned int bytesPerPixel) | |
| 0 | 253 { |
| 87 | 254 assert(bytesPerPixel == source.GetBytesPerPixel()); |
| 255 assert(channel < bytesPerPixel); | |
| 0 | 256 assert(source.GetFormat() == Orthanc::PixelFormat_Grayscale8 || |
| 257 source.GetFormat() == Orthanc::PixelFormat_RGB24 || | |
| 258 source.GetFormat() == Orthanc::PixelFormat_RGBA32); // 16bpp is unsupported | |
| 259 | |
| 260 if (static_cast<int>(x) + offsetX < 0) | |
| 261 { | |
| 262 x = 0; | |
| 263 } | |
| 264 else | |
| 265 { | |
| 266 x += offsetX; | |
| 267 if (x >= source.GetWidth()) | |
| 268 { | |
| 269 x = source.GetWidth() - 1; | |
| 270 } | |
| 271 } | |
| 272 | |
| 273 if (static_cast<int>(y) + offsetY < 0) | |
| 274 { | |
| 275 y = 0; | |
| 276 } | |
| 277 else | |
| 278 { | |
| 279 y += offsetY; | |
| 280 if (y >= source.GetHeight()) | |
| 281 { | |
| 282 y = source.GetHeight() - 1; | |
| 283 } | |
| 284 } | |
| 285 | |
| 286 return *(reinterpret_cast<const uint8_t*>(source.GetConstBuffer()) + | |
| 87 | 287 y * source.GetPitch() + x * bytesPerPixel + channel); |
| 0 | 288 } |
| 289 | |
| 290 | |
| 291 static uint8_t SmoothPixelValue(const Orthanc::ImageAccessor& source, | |
| 292 unsigned int x, | |
| 293 unsigned int y, | |
| 87 | 294 unsigned int channel, |
| 295 unsigned int bytesPerPixel) | |
| 0 | 296 { |
| 297 static const uint32_t kernel[5] = { 1, 4, 6, 4, 1 }; | |
| 298 static const uint32_t normalization = 2 * (1 + 4 + 6 + 4 + 1); | |
| 299 | |
| 300 uint32_t accumulator = 0; | |
| 301 | |
| 302 // Horizontal smoothing | |
| 303 for (int offset = -2; offset <= 2; offset++) | |
| 304 { | |
| 87 | 305 accumulator += kernel[offset + 2] * GetPixelValue(source, x, y, channel, offset, 0, bytesPerPixel); |
| 0 | 306 } |
| 307 | |
| 308 // Vertical smoothing | |
| 309 for (int offset = -2; offset <= 2; offset++) | |
| 310 { | |
| 87 | 311 accumulator += kernel[offset + 2] * GetPixelValue(source, x, y, channel, 0, offset, bytesPerPixel); |
| 0 | 312 } |
| 313 | |
| 314 return static_cast<uint8_t>(accumulator / normalization); | |
| 315 } | |
| 316 | |
| 317 | |
| 318 Orthanc::ImageAccessor* Halve(const Orthanc::ImageAccessor& source, | |
| 319 bool smooth) | |
| 320 { | |
| 321 if (source.GetWidth() % 2 == 1 || | |
| 322 source.GetHeight() % 2 == 1) | |
| 323 { | |
| 324 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageSize); | |
| 325 } | |
| 326 | |
| 327 if (source.GetFormat() != Orthanc::PixelFormat_Grayscale8 && | |
| 328 source.GetFormat() != Orthanc::PixelFormat_RGB24 && | |
| 329 source.GetFormat() != Orthanc::PixelFormat_RGBA32) // 16bpp is not supported (*) | |
| 330 { | |
| 331 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); | |
| 332 } | |
| 333 | |
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334 const unsigned int bytesPerPixel = source.GetBytesPerPixel(); // Corresponds to the number of channels tx (*) |
| 0 | 335 |
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336 std::unique_ptr<Orthanc::ImageAccessor> target(Allocate(source.GetFormat(), |
| 209 | 337 source.GetWidth() / 2, |
| 338 source.GetHeight() / 2)); | |
| 0 | 339 |
| 209 | 340 const unsigned int width = target->GetWidth(); |
| 341 const unsigned int height = target->GetHeight(); | |
| 342 | |
| 343 for (unsigned int y = 0; y < height; y++) | |
| 0 | 344 { |
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345 uint8_t* q = reinterpret_cast<uint8_t*>(target->GetRow(y)); |
| 0 | 346 |
| 209 | 347 for (unsigned int x = 0; x < width; x++, q += bytesPerPixel) |
| 0 | 348 { |
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349 for (unsigned int c = 0; c < bytesPerPixel; c++) |
| 0 | 350 { |
| 351 if (smooth) | |
| 352 { | |
| 87 | 353 q[c] = SmoothPixelValue(source, 2 * x, 2 * y, c, bytesPerPixel); |
| 0 | 354 } |
| 355 else | |
| 356 { | |
| 87 | 357 q[c] = GetPixelValue(source, 2 * x, 2 * y, c, 0, 0, bytesPerPixel); |
| 0 | 358 } |
| 359 } | |
| 360 } | |
| 361 } | |
| 362 | |
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363 return target.release(); |
| 0 | 364 } |
| 365 | |
| 366 | |
| 367 Orthanc::ImageAccessor* Clone(const Orthanc::ImageAccessor& accessor) | |
| 368 { | |
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369 std::unique_ptr<Orthanc::ImageAccessor> result(Allocate(accessor.GetFormat(), |
| 209 | 370 accessor.GetWidth(), |
| 371 accessor.GetHeight())); | |
| 0 | 372 Embed(*result, accessor, 0, 0); |
| 373 | |
| 374 return result.release(); | |
| 375 } | |
| 376 | |
| 377 | |
| 378 Orthanc::ImageAccessor* Render(ITiledPyramid& pyramid, | |
| 379 unsigned int level) | |
| 380 { | |
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381 std::unique_ptr<Orthanc::ImageAccessor> result(Allocate(pyramid.GetPixelFormat(), |
| 209 | 382 pyramid.GetLevelWidth(level), |
| 383 pyramid.GetLevelHeight(level))); | |
| 384 | |
| 385 LOG(INFO) << "Rendering a tiled image of size " | |
| 386 << result->GetWidth() << "x" << result->GetHeight(); | |
| 0 | 387 |
| 209 | 388 const unsigned int width = result->GetWidth(); |
| 389 const unsigned int height = result->GetHeight(); | |
| 390 | |
| 391 for (unsigned int y = 0; y < height; y += pyramid.GetTileHeight()) | |
| 0 | 392 { |
| 209 | 393 for (unsigned int x = 0; x < width; x += pyramid.GetTileWidth()) |
| 0 | 394 { |
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395 std::unique_ptr<Orthanc::ImageAccessor> tile(pyramid.DecodeTile(level, |
| 0 | 396 x / pyramid.GetTileWidth(), |
| 397 y / pyramid.GetTileHeight())); | |
| 398 Embed(*result, *tile, x, y); | |
| 399 } | |
| 400 } | |
| 401 | |
| 402 return result.release(); | |
| 403 } | |
| 404 } | |
| 405 } |