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annotate Core/ImageFormats/ImageProcessing.cpp @ 893:f57802f8b4dc plugins
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Mon, 16 Jun 2014 16:14:56 +0200 |
| parents | e21d1a5f5934 |
| children | 501880d76474 |
| rev | line source |
|---|---|
| 853 | 1 /** |
| 2 * Orthanc - A Lightweight, RESTful DICOM Store | |
| 3 * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege, | |
| 4 * Belgium | |
| 5 * | |
| 6 * This program is free software: you can redistribute it and/or | |
| 7 * modify it under the terms of the GNU General Public License as | |
| 8 * published by the Free Software Foundation, either version 3 of the | |
| 9 * License, or (at your option) any later version. | |
| 10 * | |
| 11 * In addition, as a special exception, the copyright holders of this | |
| 12 * program give permission to link the code of its release with the | |
| 13 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
| 14 * that use the same license as the "OpenSSL" library), and distribute | |
| 15 * the linked executables. You must obey the GNU General Public License | |
| 16 * in all respects for all of the code used other than "OpenSSL". If you | |
| 17 * modify file(s) with this exception, you may extend this exception to | |
| 18 * your version of the file(s), but you are not obligated to do so. If | |
| 19 * you do not wish to do so, delete this exception statement from your | |
| 20 * version. If you delete this exception statement from all source files | |
| 21 * in the program, then also delete it here. | |
| 22 * | |
| 23 * This program is distributed in the hope that it will be useful, but | |
| 24 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 26 * General Public License for more details. | |
| 27 * | |
| 28 * You should have received a copy of the GNU General Public License | |
| 29 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 30 **/ | |
| 31 | |
| 32 | |
| 33 #include "../PrecompiledHeaders.h" | |
| 34 #include "ImageProcessing.h" | |
| 35 | |
| 36 #include "../OrthancException.h" | |
| 37 | |
| 863 | 38 #include <boost/math/special_functions/round.hpp> |
| 39 | |
| 853 | 40 #include <cassert> |
| 41 #include <string.h> | |
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42 #include <limits> |
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43 #include <stdint.h> |
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44 |
| 853 | 45 namespace Orthanc |
| 46 { | |
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47 template <typename TargetType, typename SourceType> |
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48 static void ConvertInternal(ImageAccessor& target, |
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49 const ImageAccessor& source) |
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50 { |
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51 const TargetType minValue = std::numeric_limits<TargetType>::min(); |
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52 const TargetType maxValue = std::numeric_limits<TargetType>::max(); |
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53 |
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54 for (unsigned int y = 0; y < source.GetHeight(); y++) |
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55 { |
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56 TargetType* t = reinterpret_cast<TargetType*>(target.GetRow(y)); |
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57 const SourceType* s = reinterpret_cast<const SourceType*>(source.GetConstRow(y)); |
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58 |
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59 for (unsigned int x = 0; x < source.GetWidth(); x++, t++, s++) |
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60 { |
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61 if (static_cast<int32_t>(*s) < static_cast<int32_t>(minValue)) |
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62 { |
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63 *t = minValue; |
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64 } |
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65 else if (static_cast<int32_t>(*s) > static_cast<int32_t>(maxValue)) |
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66 { |
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67 *t = maxValue; |
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68 } |
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69 else |
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70 { |
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71 *t = static_cast<TargetType>(*s); |
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72 } |
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73 } |
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74 } |
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75 } |
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76 |
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77 |
| 863 | 78 template <typename PixelType> |
| 79 static void SetInternal(ImageAccessor& image, | |
| 80 int64_t constant) | |
| 81 { | |
| 82 for (unsigned int y = 0; y < image.GetHeight(); y++) | |
| 83 { | |
| 84 PixelType* p = reinterpret_cast<PixelType*>(image.GetRow(y)); | |
| 85 | |
| 86 for (unsigned int x = 0; x < image.GetWidth(); x++, p++) | |
| 87 { | |
| 88 *p = static_cast<PixelType>(constant); | |
| 89 } | |
| 90 } | |
| 91 } | |
| 92 | |
| 93 | |
| 94 template <typename PixelType> | |
| 95 static void GetMinMaxValueInternal(PixelType& minValue, | |
| 96 PixelType& maxValue, | |
| 97 const ImageAccessor& source) | |
| 98 { | |
| 99 // Deal with the special case of empty image | |
| 100 if (source.GetWidth() == 0 || | |
| 101 source.GetHeight() == 0) | |
| 102 { | |
| 103 minValue = 0; | |
| 104 maxValue = 0; | |
| 105 return; | |
| 106 } | |
| 107 | |
| 108 minValue = std::numeric_limits<PixelType>::max(); | |
| 109 maxValue = std::numeric_limits<PixelType>::min(); | |
| 110 | |
| 111 for (unsigned int y = 0; y < source.GetHeight(); y++) | |
| 112 { | |
| 113 const PixelType* p = reinterpret_cast<const PixelType*>(source.GetConstRow(y)); | |
| 114 | |
| 115 for (unsigned int x = 0; x < source.GetWidth(); x++, p++) | |
| 116 { | |
| 117 if (*p < minValue) | |
| 118 { | |
| 119 minValue = *p; | |
| 120 } | |
| 121 | |
| 122 if (*p > maxValue) | |
| 123 { | |
| 124 maxValue = *p; | |
| 125 } | |
| 126 } | |
| 127 } | |
| 128 } | |
| 129 | |
| 130 | |
| 131 | |
| 132 template <typename PixelType> | |
| 133 static void AddConstantInternal(ImageAccessor& image, | |
| 134 int64_t constant) | |
| 135 { | |
| 136 if (constant == 0) | |
| 137 { | |
| 138 return; | |
| 139 } | |
| 140 | |
| 141 const int64_t minValue = std::numeric_limits<PixelType>::min(); | |
| 142 const int64_t maxValue = std::numeric_limits<PixelType>::max(); | |
| 143 | |
| 144 for (unsigned int y = 0; y < image.GetHeight(); y++) | |
| 145 { | |
| 146 PixelType* p = reinterpret_cast<PixelType*>(image.GetRow(y)); | |
| 147 | |
| 148 for (unsigned int x = 0; x < image.GetWidth(); x++, p++) | |
| 149 { | |
| 150 int64_t v = static_cast<int64_t>(*p) + constant; | |
| 151 | |
| 152 if (v > maxValue) | |
| 153 { | |
| 876 | 154 *p = std::numeric_limits<PixelType>::max(); |
| 863 | 155 } |
| 156 else if (v < minValue) | |
| 157 { | |
| 876 | 158 *p = std::numeric_limits<PixelType>::min(); |
| 863 | 159 } |
| 160 else | |
| 161 { | |
| 162 *p = static_cast<PixelType>(v); | |
| 163 } | |
| 164 } | |
| 165 } | |
| 166 } | |
| 167 | |
| 168 | |
| 169 | |
| 170 template <typename PixelType> | |
| 171 void MultiplyConstantInternal(ImageAccessor& image, | |
| 172 float factor) | |
| 173 { | |
| 174 if (abs(factor - 1.0f) <= std::numeric_limits<float>::epsilon()) | |
| 175 { | |
| 176 return; | |
| 177 } | |
| 178 | |
| 179 const int64_t minValue = std::numeric_limits<PixelType>::min(); | |
| 180 const int64_t maxValue = std::numeric_limits<PixelType>::max(); | |
| 181 | |
| 182 for (unsigned int y = 0; y < image.GetHeight(); y++) | |
| 183 { | |
| 184 PixelType* p = reinterpret_cast<PixelType*>(image.GetRow(y)); | |
| 185 | |
| 186 for (unsigned int x = 0; x < image.GetWidth(); x++, p++) | |
| 187 { | |
| 188 int64_t v = boost::math::llround(static_cast<float>(*p) * factor); | |
| 189 | |
| 190 if (v > maxValue) | |
| 191 { | |
| 876 | 192 *p = std::numeric_limits<PixelType>::max(); |
| 863 | 193 } |
| 194 else if (v < minValue) | |
| 195 { | |
| 876 | 196 *p = std::numeric_limits<PixelType>::min(); |
| 863 | 197 } |
| 198 else | |
| 199 { | |
| 200 *p = static_cast<PixelType>(v); | |
| 201 } | |
| 202 } | |
| 203 } | |
| 204 } | |
| 205 | |
| 206 | |
| 207 template <typename PixelType> | |
| 208 void ShiftScaleInternal(ImageAccessor& image, | |
| 209 float offset, | |
| 210 float scaling) | |
| 211 { | |
| 212 const float minValue = static_cast<float>(std::numeric_limits<PixelType>::min()); | |
| 213 const float maxValue = static_cast<float>(std::numeric_limits<PixelType>::max()); | |
| 214 | |
| 215 for (unsigned int y = 0; y < image.GetHeight(); y++) | |
| 216 { | |
| 217 PixelType* p = reinterpret_cast<PixelType*>(image.GetRow(y)); | |
| 218 | |
| 219 for (unsigned int x = 0; x < image.GetWidth(); x++, p++) | |
| 220 { | |
| 221 float v = (static_cast<float>(*p) + offset) * scaling; | |
| 222 | |
| 223 if (v > maxValue) | |
| 224 { | |
| 225 *p = std::numeric_limits<PixelType>::max(); | |
| 226 } | |
| 227 else if (v < minValue) | |
| 228 { | |
| 229 *p = std::numeric_limits<PixelType>::min(); | |
| 230 } | |
| 231 else | |
| 232 { | |
| 233 *p = static_cast<PixelType>(boost::math::iround(v)); | |
| 234 } | |
| 235 } | |
| 236 } | |
| 237 } | |
| 238 | |
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239 |
| 853 | 240 void ImageProcessing::Copy(ImageAccessor& target, |
| 241 const ImageAccessor& source) | |
| 242 { | |
| 243 if (target.GetWidth() != source.GetWidth() || | |
| 244 target.GetHeight() != source.GetHeight()) | |
| 245 { | |
| 246 throw OrthancException(ErrorCode_IncompatibleImageSize); | |
| 247 } | |
| 248 | |
| 249 if (target.GetFormat() != source.GetFormat()) | |
| 250 { | |
| 251 throw OrthancException(ErrorCode_IncompatibleImageFormat); | |
| 252 } | |
| 253 | |
| 254 unsigned int lineSize = GetBytesPerPixel(source.GetFormat()) * source.GetWidth(); | |
| 255 | |
| 256 assert(source.GetPitch() >= lineSize && target.GetPitch() >= lineSize); | |
| 257 | |
| 258 for (unsigned int y = 0; y < source.GetHeight(); y++) | |
| 259 { | |
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260 memcpy(target.GetRow(y), source.GetConstRow(y), lineSize); |
| 853 | 261 } |
| 262 } | |
| 263 | |
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264 |
| 853 | 265 void ImageProcessing::Convert(ImageAccessor& target, |
| 266 const ImageAccessor& source) | |
| 267 { | |
| 268 if (target.GetWidth() != source.GetWidth() || | |
| 269 target.GetHeight() != source.GetHeight()) | |
| 270 { | |
| 271 throw OrthancException(ErrorCode_IncompatibleImageSize); | |
| 272 } | |
| 273 | |
| 274 if (source.GetFormat() == target.GetFormat()) | |
| 275 { | |
| 276 Copy(target, source); | |
| 277 return; | |
| 278 } | |
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279 |
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280 if (target.GetFormat() == PixelFormat_Grayscale16 && |
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281 source.GetFormat() == PixelFormat_Grayscale8) |
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282 { |
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283 ConvertInternal<uint16_t, uint8_t>(target, source); |
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284 return; |
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285 } |
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286 |
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287 if (target.GetFormat() == PixelFormat_SignedGrayscale16 && |
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288 source.GetFormat() == PixelFormat_Grayscale8) |
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289 { |
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290 ConvertInternal<int16_t, uint8_t>(target, source); |
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291 return; |
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292 } |
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293 |
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294 if (target.GetFormat() == PixelFormat_Grayscale8 && |
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295 source.GetFormat() == PixelFormat_Grayscale16) |
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296 { |
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297 ConvertInternal<uint8_t, uint16_t>(target, source); |
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298 return; |
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299 } |
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300 |
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301 if (target.GetFormat() == PixelFormat_SignedGrayscale16 && |
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302 source.GetFormat() == PixelFormat_Grayscale16) |
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303 { |
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304 ConvertInternal<int16_t, uint16_t>(target, source); |
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305 return; |
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306 } |
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307 |
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308 if (target.GetFormat() == PixelFormat_Grayscale8 && |
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309 source.GetFormat() == PixelFormat_SignedGrayscale16) |
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310 { |
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311 ConvertInternal<uint8_t, int16_t>(target, source); |
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312 return; |
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313 } |
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314 |
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315 if (target.GetFormat() == PixelFormat_Grayscale16 && |
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316 source.GetFormat() == PixelFormat_SignedGrayscale16) |
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317 { |
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318 ConvertInternal<uint16_t, int16_t>(target, source); |
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319 return; |
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320 } |
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321 |
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322 throw OrthancException(ErrorCode_NotImplemented); |
| 853 | 323 } |
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324 |
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325 |
| 863 | 326 |
| 327 void ImageProcessing::Set(ImageAccessor& image, | |
| 328 int64_t value) | |
| 329 { | |
| 330 switch (image.GetFormat()) | |
| 331 { | |
| 332 case PixelFormat_Grayscale8: | |
| 333 SetInternal<uint8_t>(image, value); | |
| 334 return; | |
| 335 | |
| 336 case PixelFormat_Grayscale16: | |
| 337 SetInternal<uint16_t>(image, value); | |
| 338 return; | |
| 339 | |
| 340 case PixelFormat_SignedGrayscale16: | |
| 341 SetInternal<int16_t>(image, value); | |
| 342 return; | |
| 343 | |
| 344 default: | |
| 345 throw OrthancException(ErrorCode_NotImplemented); | |
| 346 } | |
| 347 } | |
| 348 | |
| 349 | |
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350 void ImageProcessing::ShiftRight(ImageAccessor& image, |
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351 unsigned int shift) |
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352 { |
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353 if (image.GetWidth() == 0 || |
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354 image.GetHeight() == 0 || |
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355 shift == 0) |
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356 { |
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357 // Nothing to do |
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358 return; |
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359 } |
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360 |
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361 throw OrthancException(ErrorCode_NotImplemented); |
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362 } |
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363 |
| 863 | 364 |
| 365 void ImageProcessing::GetMinMaxValue(int64_t& minValue, | |
| 366 int64_t& maxValue, | |
| 367 const ImageAccessor& image) | |
| 368 { | |
| 369 switch (image.GetFormat()) | |
| 370 { | |
| 371 case PixelFormat_Grayscale8: | |
| 372 { | |
| 373 uint8_t a, b; | |
| 374 GetMinMaxValueInternal<uint8_t>(a, b, image); | |
| 375 minValue = a; | |
| 376 maxValue = b; | |
| 377 break; | |
| 378 } | |
| 379 | |
| 380 case PixelFormat_Grayscale16: | |
| 381 { | |
| 382 uint16_t a, b; | |
| 383 GetMinMaxValueInternal<uint16_t>(a, b, image); | |
| 384 minValue = a; | |
| 385 maxValue = b; | |
| 386 break; | |
| 387 } | |
| 388 | |
| 389 case PixelFormat_SignedGrayscale16: | |
| 390 { | |
| 391 int16_t a, b; | |
| 392 GetMinMaxValueInternal<int16_t>(a, b, image); | |
| 393 minValue = a; | |
| 394 maxValue = b; | |
| 395 break; | |
| 396 } | |
| 397 | |
| 398 default: | |
| 399 throw OrthancException(ErrorCode_NotImplemented); | |
| 400 } | |
| 401 } | |
| 402 | |
| 403 | |
| 404 | |
| 405 void ImageProcessing::AddConstant(ImageAccessor& image, | |
| 406 int64_t value) | |
| 407 { | |
| 408 switch (image.GetFormat()) | |
| 409 { | |
| 410 case PixelFormat_Grayscale8: | |
| 411 AddConstantInternal<uint8_t>(image, value); | |
| 412 return; | |
| 413 | |
| 414 case PixelFormat_Grayscale16: | |
| 415 AddConstantInternal<uint16_t>(image, value); | |
| 416 return; | |
| 417 | |
| 418 case PixelFormat_SignedGrayscale16: | |
| 419 AddConstantInternal<int16_t>(image, value); | |
| 420 return; | |
| 421 | |
| 422 default: | |
| 423 throw OrthancException(ErrorCode_NotImplemented); | |
| 424 } | |
| 425 } | |
| 426 | |
| 427 | |
| 428 void ImageProcessing::MultiplyConstant(ImageAccessor& image, | |
| 429 float factor) | |
| 430 { | |
| 431 switch (image.GetFormat()) | |
| 432 { | |
| 433 case PixelFormat_Grayscale8: | |
| 434 MultiplyConstantInternal<uint8_t>(image, factor); | |
| 435 return; | |
| 436 | |
| 437 case PixelFormat_Grayscale16: | |
| 438 MultiplyConstantInternal<uint16_t>(image, factor); | |
| 439 return; | |
| 440 | |
| 441 case PixelFormat_SignedGrayscale16: | |
| 442 MultiplyConstantInternal<int16_t>(image, factor); | |
| 443 return; | |
| 444 | |
| 445 default: | |
| 446 throw OrthancException(ErrorCode_NotImplemented); | |
| 447 } | |
| 448 } | |
| 449 | |
| 450 | |
| 451 void ImageProcessing::ShiftScale(ImageAccessor& image, | |
| 452 float offset, | |
| 453 float scaling) | |
| 454 { | |
| 455 switch (image.GetFormat()) | |
| 456 { | |
| 457 case PixelFormat_Grayscale8: | |
| 458 ShiftScaleInternal<uint8_t>(image, offset, scaling); | |
| 459 return; | |
| 460 | |
| 461 case PixelFormat_Grayscale16: | |
| 462 ShiftScaleInternal<uint16_t>(image, offset, scaling); | |
| 463 return; | |
| 464 | |
| 465 case PixelFormat_SignedGrayscale16: | |
| 466 ShiftScaleInternal<int16_t>(image, offset, scaling); | |
| 467 return; | |
| 468 | |
| 469 default: | |
| 470 throw OrthancException(ErrorCode_NotImplemented); | |
| 471 } | |
| 472 } | |
| 853 | 473 } |