Mercurial > hg > orthanc-wsi
annotate Framework/ImageToolbox.cpp @ 206:e12a4588d4bd
fix
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Tue, 04 Aug 2020 14:15:51 +0200 |
| parents | a1c265cb2174 |
| children | 628201cb48c2 |
| 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) 2017-2020 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 | |
| 96 switch (image.GetFormat()) | |
| 97 { | |
| 98 case Orthanc::PixelFormat_Grayscale8: | |
| 99 { | |
| 100 for (unsigned int y = 0; y < image.GetHeight(); y++) | |
| 101 { | |
| 102 memset(image.GetRow(y), grayscale, image.GetWidth()); | |
| 103 } | |
| 104 | |
| 105 break; | |
| 106 } | |
| 107 | |
| 108 case Orthanc::PixelFormat_RGB24: | |
| 109 { | |
| 110 for (unsigned int y = 0; y < image.GetHeight(); y++) | |
| 111 { | |
| 112 uint8_t* p = reinterpret_cast<uint8_t*>(image.GetRow(y)); | |
| 113 for (unsigned int x = 0; x < image.GetWidth(); x++, p += 3) | |
| 114 { | |
| 115 p[0] = r; | |
| 116 p[1] = g; | |
| 117 p[2] = b; | |
| 118 } | |
| 119 } | |
| 120 | |
| 121 break; | |
| 122 } | |
| 123 | |
| 124 default: | |
| 125 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); | |
| 126 } | |
| 127 } | |
| 128 | |
| 129 | |
| 130 Orthanc::ImageAccessor* DecodeTile(const std::string& source, | |
| 131 ImageCompression compression) | |
| 132 { | |
| 133 switch (compression) | |
| 134 { | |
| 135 case ImageCompression_Png: | |
| 136 { | |
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137 std::unique_ptr<Orthanc::PngReader> reader(new Orthanc::PngReader); |
| 0 | 138 reader->ReadFromMemory(source); |
| 139 return reader.release(); | |
| 140 } | |
| 141 | |
| 142 case ImageCompression_Jpeg: | |
| 143 { | |
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144 std::unique_ptr<Orthanc::JpegReader> reader(new Orthanc::JpegReader); |
| 0 | 145 reader->ReadFromMemory(source); |
| 146 return reader.release(); | |
| 147 } | |
| 148 | |
| 149 case ImageCompression_Jpeg2000: | |
| 150 { | |
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151 std::unique_ptr<Jpeg2000Reader> reader(new Jpeg2000Reader); |
| 0 | 152 reader->ReadFromMemory(source); |
| 153 return reader.release(); | |
| 154 } | |
| 155 | |
| 156 default: | |
| 157 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
| 158 } | |
| 159 } | |
| 160 | |
| 161 | |
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162 Orthanc::ImageAccessor* DecodeRawTile(const std::string& source, |
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163 Orthanc::PixelFormat format, |
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164 unsigned int width, |
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165 unsigned int height) |
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166 { |
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167 unsigned int bpp = GetBytesPerPixel(format); |
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168 |
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169 if (bpp * width * height != source.size()) |
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170 { |
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171 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageSize); |
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172 } |
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173 |
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174 Orthanc::ImageAccessor accessor; |
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175 accessor.AssignReadOnly(format, width, height, bpp * width, source.empty() ? NULL : source.c_str()); |
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176 |
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177 return Orthanc::Image::Clone(accessor); |
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178 } |
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179 |
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180 |
| 0 | 181 void EncodeTile(std::string& target, |
| 182 const Orthanc::ImageAccessor& source, | |
| 183 ImageCompression compression, | |
| 184 uint8_t quality) | |
| 185 { | |
| 186 if (compression == ImageCompression_None) | |
| 187 { | |
| 188 unsigned int pitch = GetBytesPerPixel(source.GetFormat()) * source.GetWidth(); | |
| 189 target.resize(pitch * source.GetHeight()); | |
| 190 | |
| 191 for (unsigned int i = 0; i < source.GetHeight(); i++) | |
| 192 { | |
| 193 memcpy(&target[i * pitch], source.GetConstRow(i), pitch); | |
| 194 } | |
| 195 } | |
| 196 else | |
| 197 { | |
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198 std::unique_ptr<Orthanc::IImageWriter> writer; |
| 0 | 199 |
| 200 switch (compression) | |
| 201 { | |
| 202 case ImageCompression_Png: | |
| 203 writer.reset(new Orthanc::PngWriter); | |
| 204 break; | |
| 205 | |
| 206 case ImageCompression_Jpeg: | |
| 207 writer.reset(new Orthanc::JpegWriter); | |
| 208 dynamic_cast<Orthanc::JpegWriter&>(*writer).SetQuality(quality); | |
| 209 break; | |
| 210 | |
| 211 case ImageCompression_Jpeg2000: | |
| 212 writer.reset(new Jpeg2000Writer); | |
| 213 break; | |
| 214 | |
| 215 default: | |
| 216 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
| 217 } | |
| 218 | |
| 219 writer->WriteToMemory(target, source); | |
| 220 } | |
| 221 } | |
| 222 | |
| 223 | |
| 224 void ChangeTileCompression(std::string& target, | |
| 225 const std::string& source, | |
| 226 ImageCompression sourceCompression, | |
| 227 ImageCompression targetCompression, | |
| 228 uint8_t quality) | |
| 229 { | |
| 230 if (sourceCompression == targetCompression) | |
| 231 { | |
| 232 target = source; | |
| 233 } | |
| 234 else | |
| 235 { | |
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236 std::unique_ptr<Orthanc::ImageAccessor> decoded(DecodeTile(source, sourceCompression)); |
| 0 | 237 EncodeTile(target, *decoded, targetCompression, quality); |
| 238 } | |
| 239 } | |
| 240 | |
| 241 | |
| 242 static uint8_t GetPixelValue(const Orthanc::ImageAccessor& source, | |
| 243 unsigned int x, | |
| 244 unsigned int y, | |
| 245 unsigned int channel, | |
| 246 int offsetX, | |
| 87 | 247 int offsetY, |
| 248 unsigned int bytesPerPixel) | |
| 0 | 249 { |
| 87 | 250 assert(bytesPerPixel == source.GetBytesPerPixel()); |
| 251 assert(channel < bytesPerPixel); | |
| 0 | 252 assert(source.GetFormat() == Orthanc::PixelFormat_Grayscale8 || |
| 253 source.GetFormat() == Orthanc::PixelFormat_RGB24 || | |
| 254 source.GetFormat() == Orthanc::PixelFormat_RGBA32); // 16bpp is unsupported | |
| 255 | |
| 256 if (static_cast<int>(x) + offsetX < 0) | |
| 257 { | |
| 258 x = 0; | |
| 259 } | |
| 260 else | |
| 261 { | |
| 262 x += offsetX; | |
| 263 if (x >= source.GetWidth()) | |
| 264 { | |
| 265 x = source.GetWidth() - 1; | |
| 266 } | |
| 267 } | |
| 268 | |
| 269 if (static_cast<int>(y) + offsetY < 0) | |
| 270 { | |
| 271 y = 0; | |
| 272 } | |
| 273 else | |
| 274 { | |
| 275 y += offsetY; | |
| 276 if (y >= source.GetHeight()) | |
| 277 { | |
| 278 y = source.GetHeight() - 1; | |
| 279 } | |
| 280 } | |
| 281 | |
| 282 return *(reinterpret_cast<const uint8_t*>(source.GetConstBuffer()) + | |
| 87 | 283 y * source.GetPitch() + x * bytesPerPixel + channel); |
| 0 | 284 } |
| 285 | |
| 286 | |
| 287 static uint8_t SmoothPixelValue(const Orthanc::ImageAccessor& source, | |
| 288 unsigned int x, | |
| 289 unsigned int y, | |
| 87 | 290 unsigned int channel, |
| 291 unsigned int bytesPerPixel) | |
| 0 | 292 { |
| 293 static const uint32_t kernel[5] = { 1, 4, 6, 4, 1 }; | |
| 294 static const uint32_t normalization = 2 * (1 + 4 + 6 + 4 + 1); | |
| 295 | |
| 296 uint32_t accumulator = 0; | |
| 297 | |
| 298 // Horizontal smoothing | |
| 299 for (int offset = -2; offset <= 2; offset++) | |
| 300 { | |
| 87 | 301 accumulator += kernel[offset + 2] * GetPixelValue(source, x, y, channel, offset, 0, bytesPerPixel); |
| 0 | 302 } |
| 303 | |
| 304 // Vertical smoothing | |
| 305 for (int offset = -2; offset <= 2; offset++) | |
| 306 { | |
| 87 | 307 accumulator += kernel[offset + 2] * GetPixelValue(source, x, y, channel, 0, offset, bytesPerPixel); |
| 0 | 308 } |
| 309 | |
| 310 return static_cast<uint8_t>(accumulator / normalization); | |
| 311 } | |
| 312 | |
| 313 | |
| 314 Orthanc::ImageAccessor* Halve(const Orthanc::ImageAccessor& source, | |
| 315 bool smooth) | |
| 316 { | |
| 317 if (source.GetWidth() % 2 == 1 || | |
| 318 source.GetHeight() % 2 == 1) | |
| 319 { | |
| 320 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageSize); | |
| 321 } | |
| 322 | |
| 323 if (source.GetFormat() != Orthanc::PixelFormat_Grayscale8 && | |
| 324 source.GetFormat() != Orthanc::PixelFormat_RGB24 && | |
| 325 source.GetFormat() != Orthanc::PixelFormat_RGBA32) // 16bpp is not supported (*) | |
| 326 { | |
| 327 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); | |
| 328 } | |
| 329 | |
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330 const unsigned int bytesPerPixel = source.GetBytesPerPixel(); // Corresponds to the number of channels tx (*) |
| 0 | 331 |
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332 std::unique_ptr<Orthanc::ImageAccessor> target(Allocate(source.GetFormat(), |
| 0 | 333 source.GetWidth() / 2, |
| 334 source.GetHeight() / 2)); | |
| 335 | |
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336 for (unsigned int y = 0; y < target->GetHeight(); y++) |
| 0 | 337 { |
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338 uint8_t* q = reinterpret_cast<uint8_t*>(target->GetRow(y)); |
| 0 | 339 |
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340 for (unsigned int x = 0; x < target->GetWidth(); x++, q += bytesPerPixel) |
| 0 | 341 { |
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342 for (unsigned int c = 0; c < bytesPerPixel; c++) |
| 0 | 343 { |
| 344 if (smooth) | |
| 345 { | |
| 87 | 346 q[c] = SmoothPixelValue(source, 2 * x, 2 * y, c, bytesPerPixel); |
| 0 | 347 } |
| 348 else | |
| 349 { | |
| 87 | 350 q[c] = GetPixelValue(source, 2 * x, 2 * y, c, 0, 0, bytesPerPixel); |
| 0 | 351 } |
| 352 } | |
| 353 } | |
| 354 } | |
| 355 | |
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356 return target.release(); |
| 0 | 357 } |
| 358 | |
| 359 | |
| 360 Orthanc::ImageAccessor* Clone(const Orthanc::ImageAccessor& accessor) | |
| 361 { | |
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362 std::unique_ptr<Orthanc::ImageAccessor> result(Allocate(accessor.GetFormat(), |
| 0 | 363 accessor.GetWidth(), |
| 364 accessor.GetHeight())); | |
| 365 Embed(*result, accessor, 0, 0); | |
| 366 | |
| 367 return result.release(); | |
| 368 } | |
| 369 | |
| 370 | |
| 371 Orthanc::ImageAccessor* Render(ITiledPyramid& pyramid, | |
| 372 unsigned int level) | |
| 373 { | |
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374 std::unique_ptr<Orthanc::ImageAccessor> result(Allocate(pyramid.GetPixelFormat(), |
| 0 | 375 pyramid.GetLevelWidth(level), |
| 376 pyramid.GetLevelHeight(level))); | |
| 377 | |
| 378 LOG(INFO) << "Rendering a tiled image of size " << result->GetWidth() << "x" << result->GetHeight(); | |
| 379 | |
| 380 for (unsigned int y = 0; y < result->GetHeight(); y += pyramid.GetTileHeight()) | |
| 381 { | |
| 382 for (unsigned int x = 0; x < result->GetWidth(); x += pyramid.GetTileWidth()) | |
| 383 { | |
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384 std::unique_ptr<Orthanc::ImageAccessor> tile(pyramid.DecodeTile(level, |
| 0 | 385 x / pyramid.GetTileWidth(), |
| 386 y / pyramid.GetTileHeight())); | |
| 387 Embed(*result, *tile, x, y); | |
| 388 } | |
| 389 } | |
| 390 | |
| 391 return result.release(); | |
| 392 } | |
| 393 } | |
| 394 } |