Mercurial > hg > orthanc
annotate OrthancServer/Internals/DicomImageDecoder.cpp @ 861:a546b05a43da jpeg
fix PngWriter
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Sat, 07 Jun 2014 10:49:00 +0200 |
| parents | 80c7e53a69b5 |
| children | 3c0d0836f704 |
| rev | line source |
|---|---|
| 845 | 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 "../PrecompiledHeadersServer.h" | |
| 34 #include "DicomImageDecoder.h" | |
| 35 | |
| 846 | 36 |
| 37 /*========================================================================= | |
| 38 | |
| 39 This file is based on portions of the following project | |
| 40 (cf. function "DecodePsmctRle1()"): | |
| 41 | |
| 42 Program: GDCM (Grassroots DICOM). A DICOM library | |
| 43 Module: http://gdcm.sourceforge.net/Copyright.html | |
| 44 | |
| 45 Copyright (c) 2006-2011 Mathieu Malaterre | |
| 46 Copyright (c) 1993-2005 CREATIS | |
| 47 (CREATIS = Centre de Recherche et d'Applications en Traitement de l'Image) | |
| 48 All rights reserved. | |
| 49 | |
| 50 Redistribution and use in source and binary forms, with or without | |
| 51 modification, are permitted provided that the following conditions are met: | |
| 52 | |
| 53 * Redistributions of source code must retain the above copyright notice, | |
| 54 this list of conditions and the following disclaimer. | |
| 55 | |
| 56 * Redistributions in binary form must reproduce the above copyright notice, | |
| 57 this list of conditions and the following disclaimer in the documentation | |
| 58 and/or other materials provided with the distribution. | |
| 59 | |
| 60 * Neither name of Mathieu Malaterre, or CREATIS, nor the names of any | |
| 61 contributors (CNRS, INSERM, UCB, Universite Lyon I), may be used to | |
| 62 endorse or promote products derived from this software without specific | |
| 63 prior written permission. | |
| 64 | |
| 65 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' | |
| 66 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 67 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 68 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR | |
| 69 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 70 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
| 71 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | |
| 72 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | |
| 73 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 74 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 75 | |
| 76 =========================================================================*/ | |
| 77 | |
| 78 | |
| 79 | |
| 845 | 80 #include "../../Core/OrthancException.h" |
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81 #include "../../Core/ImageFormats/ImageProcessing.h" |
| 861 | 82 #include "../../Core/ImageFormats/PngWriter.h" // TODO REMOVE THIS |
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83 #include "../../Core/DicomFormat/DicomIntegerPixelAccessor.h" |
| 845 | 84 #include "../ToDcmtkBridge.h" |
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85 #include "../FromDcmtkBridge.h" |
| 845 | 86 |
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87 #include <glog/logging.h> |
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88 |
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89 #include <boost/lexical_cast.hpp> |
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90 |
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91 #if ORTHANC_JPEG_LOSSLESS_ENABLED == 1 |
| 845 | 92 #include <dcmtk/dcmjpls/djcodecd.h> |
| 93 #include <dcmtk/dcmjpls/djcparam.h> | |
| 94 #include <dcmtk/dcmjpeg/djrplol.h> | |
| 95 #endif | |
| 96 | |
| 97 | |
| 98 namespace Orthanc | |
| 99 { | |
| 852 | 100 class DicomImageDecoder::ImageSource |
| 101 { | |
| 102 private: | |
| 103 std::string psmct_; | |
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104 std::auto_ptr<DicomIntegerPixelAccessor> slowAccessor_; |
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105 std::auto_ptr<ImageAccessor> fastAccessor_; |
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106 |
| 852 | 107 public: |
| 108 void Setup(DcmDataset& dataset, | |
| 109 unsigned int frame) | |
| 110 { | |
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111 psmct_.clear(); |
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112 slowAccessor_.reset(NULL); |
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113 fastAccessor_.reset(NULL); |
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114 |
| 852 | 115 // See also: http://support.dcmtk.org/wiki/dcmtk/howto/accessing-compressed-data |
| 116 | |
| 117 DicomMap m; | |
| 118 FromDcmtkBridge::Convert(m, dataset); | |
| 119 | |
| 120 /** | |
| 121 * Create an accessor to the raw values of the DICOM image. | |
| 122 **/ | |
| 123 | |
| 124 DcmElement* e; | |
| 125 if (dataset.findAndGetElement(ToDcmtkBridge::Convert(DICOM_TAG_PIXEL_DATA), e).good() && | |
| 126 e != NULL) | |
| 127 { | |
| 128 Uint8* pixData = NULL; | |
| 129 if (e->getUint8Array(pixData) == EC_Normal) | |
| 130 { | |
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131 slowAccessor_.reset(new DicomIntegerPixelAccessor(m, pixData, e->getLength())); |
| 852 | 132 } |
| 133 } | |
| 134 else if (DicomImageDecoder::DecodePsmctRle1(psmct_, dataset)) | |
| 135 { | |
| 136 LOG(INFO) << "The PMSCT_RLE1 decoding has succeeded"; | |
| 137 Uint8* pixData = NULL; | |
| 138 if (psmct_.size() > 0) | |
| 139 { | |
| 140 pixData = reinterpret_cast<Uint8*>(&psmct_[0]); | |
| 141 } | |
| 142 | |
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143 slowAccessor_.reset(new DicomIntegerPixelAccessor(m, pixData, psmct_.size())); |
| 852 | 144 } |
| 145 | |
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146 if (slowAccessor_.get() == NULL) |
| 852 | 147 { |
| 148 throw OrthancException(ErrorCode_BadFileFormat); | |
| 149 } | |
| 150 | |
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151 slowAccessor_->SetCurrentFrame(frame); |
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152 |
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153 |
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154 /** |
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155 * If possible, create a fast ImageAccessor to the image buffer. |
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156 **/ |
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157 |
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158 |
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159 } |
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160 |
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161 unsigned int GetWidth() const |
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162 { |
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163 assert(slowAccessor_.get() != NULL); |
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164 return slowAccessor_->GetInformation().GetWidth(); |
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165 } |
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166 |
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167 unsigned int GetHeight() const |
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168 { |
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169 assert(slowAccessor_.get() != NULL); |
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170 return slowAccessor_->GetInformation().GetHeight(); |
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171 } |
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172 |
| 852 | 173 unsigned int GetChannelCount() const |
| 174 { | |
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175 assert(slowAccessor_.get() != NULL); |
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176 return slowAccessor_->GetInformation().GetChannelCount(); |
| 852 | 177 } |
| 178 | |
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179 const DicomIntegerPixelAccessor& GetAccessor() const |
| 852 | 180 { |
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181 assert(slowAccessor_.get() != NULL); |
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182 return *slowAccessor_; |
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183 } |
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184 |
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185 bool HasFastAccessor() const |
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186 { |
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187 return fastAccessor_.get() != NULL; |
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188 } |
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189 |
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190 const ImageAccessor& GetFastAccessor() const |
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191 { |
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192 assert(HasFastAccessor()); |
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193 return *fastAccessor_; |
| 852 | 194 } |
| 195 }; | |
| 196 | |
| 197 | |
| 846 | 198 static const DicomTag DICOM_TAG_CONTENT(0x07a1, 0x100a); |
| 199 static const DicomTag DICOM_TAG_COMPRESSION_TYPE(0x07a1, 0x1011); | |
| 200 | |
| 201 bool DicomImageDecoder::IsPsmctRle1(DcmDataset& dataset) | |
| 202 { | |
| 203 DcmElement* e; | |
| 204 char* c; | |
| 205 | |
| 206 // Check whether the DICOM instance contains an image encoded with | |
| 207 // the PMSCT_RLE1 scheme. | |
| 208 if (!dataset.findAndGetElement(ToDcmtkBridge::Convert(DICOM_TAG_COMPRESSION_TYPE), e).good() || | |
| 209 e == NULL || | |
| 210 !e->isaString() || | |
| 211 !e->getString(c).good() || | |
| 212 c == NULL || | |
| 213 strcmp("PMSCT_RLE1", c)) | |
| 214 { | |
| 215 return false; | |
| 216 } | |
| 217 else | |
| 218 { | |
| 219 return true; | |
| 220 } | |
| 221 } | |
| 222 | |
| 223 | |
| 224 bool DicomImageDecoder::DecodePsmctRle1(std::string& output, | |
| 225 DcmDataset& dataset) | |
| 226 { | |
| 227 // Check whether the DICOM instance contains an image encoded with | |
| 228 // the PMSCT_RLE1 scheme. | |
| 229 if (!IsPsmctRle1(dataset)) | |
| 230 { | |
| 231 return false; | |
| 232 } | |
| 233 | |
| 234 // OK, this is a custom RLE encoding from Philips. Get the pixel | |
| 235 // data from the appropriate private DICOM tag. | |
| 236 Uint8* pixData = NULL; | |
| 237 DcmElement* e; | |
| 238 if (!dataset.findAndGetElement(ToDcmtkBridge::Convert(DICOM_TAG_CONTENT), e).good() || | |
| 239 e == NULL || | |
| 240 e->getUint8Array(pixData) != EC_Normal) | |
| 241 { | |
| 242 return false; | |
| 243 } | |
| 244 | |
| 245 // The "unsigned" below IS VERY IMPORTANT | |
| 246 const uint8_t* inbuffer = reinterpret_cast<const uint8_t*>(pixData); | |
| 247 const size_t length = e->getLength(); | |
| 248 | |
| 249 /** | |
| 250 * The code below is an adaptation of a sample code for GDCM by | |
| 251 * Mathieu Malaterre (under a BSD license). | |
| 252 * http://gdcm.sourceforge.net/html/rle2img_8cxx-example.html | |
| 253 **/ | |
| 254 | |
| 255 // RLE pass | |
| 256 std::vector<uint8_t> temp; | |
| 257 temp.reserve(length); | |
| 258 for (size_t i = 0; i < length; i++) | |
| 259 { | |
| 260 if (inbuffer[i] == 0xa5) | |
| 261 { | |
| 262 temp.push_back(inbuffer[i+2]); | |
| 263 for (uint8_t repeat = inbuffer[i + 1]; repeat != 0; repeat--) | |
| 264 { | |
| 265 temp.push_back(inbuffer[i+2]); | |
| 266 } | |
| 267 i += 2; | |
| 268 } | |
| 269 else | |
| 270 { | |
| 271 temp.push_back(inbuffer[i]); | |
| 272 } | |
| 273 } | |
| 274 | |
| 275 // Delta encoding pass | |
| 276 uint16_t delta = 0; | |
| 277 output.clear(); | |
| 278 output.reserve(temp.size()); | |
| 279 for (size_t i = 0; i < temp.size(); i++) | |
| 280 { | |
| 281 uint16_t value; | |
| 282 | |
| 283 if (temp[i] == 0x5a) | |
| 284 { | |
| 285 uint16_t v1 = temp[i + 1]; | |
| 286 uint16_t v2 = temp[i + 2]; | |
| 287 value = (v2 << 8) + v1; | |
| 288 i += 2; | |
| 289 } | |
| 290 else | |
| 291 { | |
| 292 value = delta + (int8_t) temp[i]; | |
| 293 } | |
| 294 | |
| 295 output.push_back(value & 0xff); | |
| 296 output.push_back(value >> 8); | |
| 297 delta = value; | |
| 298 } | |
| 299 | |
| 300 if (output.size() % 2) | |
| 301 { | |
| 302 output.resize(output.size() - 1); | |
| 303 } | |
| 304 | |
| 305 return true; | |
| 306 } | |
| 307 | |
| 308 | |
| 845 | 309 void DicomImageDecoder::SetupImageBuffer(ImageBuffer& target, |
| 310 DcmDataset& dataset) | |
| 311 { | |
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312 DicomMap m; |
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313 FromDcmtkBridge::Convert(m, dataset); |
| 845 | 314 |
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315 DicomImageInformation info(m); |
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316 PixelFormat format; |
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317 |
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318 if (!info.ExtractPixelFormat(format)) |
| 845 | 319 { |
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320 LOG(WARNING) << "Unsupported DICOM image: " << info.GetBitsStored() |
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321 << "bpp, " << info.GetChannelCount() << " channels, " |
| 860 | 322 << (info.IsSigned() ? "signed" : "unsigned") |
| 323 << (info.IsPlanar() ? ", planar" : ", non-planar"); | |
| 845 | 324 throw OrthancException(ErrorCode_NotImplemented); |
| 325 } | |
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326 |
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327 target.SetHeight(info.GetHeight()); |
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328 target.SetWidth(info.GetWidth()); |
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329 target.SetFormat(format); |
| 845 | 330 } |
| 331 | |
| 332 | |
| 333 bool DicomImageDecoder::IsJpegLossless(const DcmDataset& dataset) | |
| 334 { | |
| 851 | 335 // http://support.dcmtk.org/docs/dcxfer_8h-source.html |
| 845 | 336 return (dataset.getOriginalXfer() == EXS_JPEGLSLossless || |
| 337 dataset.getOriginalXfer() == EXS_JPEGLSLossy); | |
| 338 } | |
| 339 | |
| 340 | |
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341 bool DicomImageDecoder::IsUncompressedImage(const DcmDataset& dataset) |
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342 { |
| 851 | 343 // http://support.dcmtk.org/docs/dcxfer_8h-source.html |
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344 return (dataset.getOriginalXfer() == EXS_Unknown || |
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345 dataset.getOriginalXfer() == EXS_LittleEndianImplicit || |
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346 dataset.getOriginalXfer() == EXS_BigEndianImplicit || |
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347 dataset.getOriginalXfer() == EXS_LittleEndianExplicit || |
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348 dataset.getOriginalXfer() == EXS_BigEndianExplicit); |
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349 } |
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350 |
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351 |
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352 template <typename PixelType> |
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353 static void CopyPixels(ImageAccessor& target, |
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354 const DicomIntegerPixelAccessor& source) |
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355 { |
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356 const PixelType minValue = std::numeric_limits<PixelType>::min(); |
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357 const PixelType maxValue = std::numeric_limits<PixelType>::max(); |
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358 |
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359 for (unsigned int y = 0; y < source.GetInformation().GetHeight(); y++) |
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360 { |
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361 PixelType* pixel = reinterpret_cast<PixelType*>(target.GetRow(y)); |
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362 for (unsigned int x = 0; x < source.GetInformation().GetWidth(); x++) |
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363 { |
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364 for (unsigned int c = 0; c < source.GetInformation().GetChannelCount(); c++, pixel++) |
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365 { |
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366 int32_t v = source.GetValue(x, y, c); |
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367 if (v < static_cast<int32_t>(minValue)) |
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368 { |
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369 *pixel = minValue; |
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370 } |
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371 else if (v > static_cast<int32_t>(maxValue)) |
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372 { |
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373 *pixel = maxValue; |
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374 } |
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375 else |
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376 { |
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377 *pixel = static_cast<PixelType>(v); |
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378 } |
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379 } |
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380 } |
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381 } |
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382 } |
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383 |
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384 |
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385 void DicomImageDecoder::DecodeUncompressedImage(ImageBuffer& target, |
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386 DcmDataset& dataset, |
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387 unsigned int frame) |
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388 { |
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389 if (!IsUncompressedImage(dataset)) |
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390 { |
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391 throw OrthancException(ErrorCode_BadParameterType); |
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392 } |
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393 |
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394 DecodeUncompressedImageInternal(target, dataset, frame); |
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395 } |
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396 |
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397 |
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398 void DicomImageDecoder::DecodeUncompressedImageInternal(ImageBuffer& target, |
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399 DcmDataset& dataset, |
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400 unsigned int frame) |
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401 { |
| 852 | 402 ImageSource source; |
| 403 source.Setup(dataset, frame); | |
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404 |
|
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405 |
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406 /** |
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407 * Resize the target image. |
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408 **/ |
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409 |
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410 SetupImageBuffer(target, dataset); |
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411 |
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412 if (source.GetWidth() != target.GetWidth() || |
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413 source.GetHeight() != target.GetHeight()) |
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414 { |
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415 throw OrthancException(ErrorCode_InternalError); |
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416 } |
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417 |
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418 |
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419 /** |
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420 * If the format of the DICOM buffer is natively supported, use a |
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421 * direct access to copy its values. |
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422 **/ |
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423 |
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424 ImageAccessor targetAccessor(target.GetAccessor()); |
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425 const DicomImageInformation& info = source.GetAccessor().GetInformation(); |
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426 |
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427 bool fastVersionSuccess = false; |
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428 PixelFormat sourceFormat; |
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429 if (info.ExtractPixelFormat(sourceFormat)) |
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430 { |
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431 try |
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432 { |
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433 ImageAccessor sourceImage; |
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434 sourceImage.AssignReadOnly(sourceFormat, |
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435 info.GetWidth(), |
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436 info.GetHeight(), |
| 860 | 437 info.GetWidth() * GetBytesPerPixel(sourceFormat), |
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438 source.GetAccessor().GetPixelData()); |
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439 |
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440 ImageProcessing::Convert(targetAccessor, sourceImage); |
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441 ImageProcessing::ShiftRight(targetAccessor, info.GetShift()); |
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442 fastVersionSuccess = true; |
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443 } |
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444 catch (OrthancException&) |
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445 { |
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859
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446 // Unsupported conversion, use the slow version |
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447 } |
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448 } |
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449 |
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450 |
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451 /** |
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452 * Slow version : loop over the DICOM buffer, storing its value |
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453 * into the target image. |
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454 **/ |
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455 |
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fast version of image copy
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456 if (!fastVersionSuccess) |
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fully functional JPEG-LS conversion
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457 { |
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fast version of image copy
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458 switch (target.GetFormat()) |
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fast version of image copy
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459 { |
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fast version of image copy
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460 case PixelFormat_RGB24: |
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fast version of image copy
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461 case PixelFormat_RGBA32: |
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fast version of image copy
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462 case PixelFormat_Grayscale8: |
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fast version of image copy
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463 CopyPixels<uint8_t>(targetAccessor, source.GetAccessor()); |
|
847
03ea55da7429
fully functional JPEG-LS conversion
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464 break; |
| 860 | 465 |
|
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fast version of image copy
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466 case PixelFormat_Grayscale16: |
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fast version of image copy
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467 CopyPixels<uint16_t>(targetAccessor, source.GetAccessor()); |
|
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fully functional JPEG-LS conversion
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468 break; |
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03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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469 |
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fast version of image copy
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470 case PixelFormat_SignedGrayscale16: |
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fast version of image copy
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471 CopyPixels<int16_t>(targetAccessor, source.GetAccessor()); |
|
847
03ea55da7429
fully functional JPEG-LS conversion
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parents:
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472 break; |
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03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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|
473 |
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fast version of image copy
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474 default: |
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fully functional JPEG-LS conversion
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475 throw OrthancException(ErrorCode_InternalError); |
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fast version of image copy
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476 } |
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847
03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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diff
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|
477 } |
|
03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
846
diff
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|
478 } |
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03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
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479 |
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03ea55da7429
fully functional JPEG-LS conversion
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480 |
| 845 | 481 #if ORTHANC_JPEG_LOSSLESS_ENABLED == 1 |
| 482 void DicomImageDecoder::DecodeJpegLossless(ImageBuffer& target, | |
|
847
03ea55da7429
fully functional JPEG-LS conversion
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changeset
|
483 DcmDataset& dataset, |
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03ea55da7429
fully functional JPEG-LS conversion
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|
484 unsigned int frame) |
| 845 | 485 { |
| 486 if (!IsJpegLossless(dataset)) | |
| 487 { | |
| 488 throw OrthancException(ErrorCode_BadParameterType); | |
| 489 } | |
| 490 | |
| 491 DcmElement *element = NULL; | |
| 492 if (!dataset.findAndGetElement(ToDcmtkBridge::Convert(DICOM_TAG_PIXEL_DATA), element).good()) | |
| 493 { | |
| 494 throw OrthancException(ErrorCode_BadFileFormat); | |
| 495 } | |
| 496 | |
| 497 DcmPixelData& pixelData = dynamic_cast<DcmPixelData&>(*element); | |
| 498 DcmPixelSequence* pixelSequence = NULL; | |
| 499 if (!pixelData.getEncapsulatedRepresentation | |
| 500 (dataset.getOriginalXfer(), NULL, pixelSequence).good()) | |
| 501 { | |
| 502 throw OrthancException(ErrorCode_BadFileFormat); | |
| 503 } | |
| 504 | |
| 505 SetupImageBuffer(target, dataset); | |
| 506 | |
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507 ImageAccessor targetAccessor(target.GetAccessor()); |
| 845 | 508 |
| 509 /** | |
| 510 * The "DJLSLosslessDecoder" and "DJLSNearLosslessDecoder" in DCMTK | |
| 511 * are exactly the same, except for the "supportedTransferSyntax()" | |
| 512 * virtual function. | |
| 513 * http://support.dcmtk.org/docs/classDJLSDecoderBase.html | |
| 514 **/ | |
| 515 | |
| 516 DJLSLosslessDecoder decoder; DJLSCodecParameter parameters; | |
| 517 //DJLSNearLosslessDecoder decoder; DJLSCodecParameter parameters; | |
| 518 | |
| 519 Uint32 startFragment = 0; // Default | |
| 520 OFString decompressedColorModel; // Out | |
| 521 DJ_RPLossless representationParameter; | |
| 522 OFCondition c = decoder.decodeFrame(&representationParameter, pixelSequence, ¶meters, | |
|
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fast version of image copy
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523 &dataset, frame, startFragment, targetAccessor.GetBuffer(), |
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fast version of image copy
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|
524 targetAccessor.GetSize(), decompressedColorModel); |
| 845 | 525 |
| 526 if (!c.good()) | |
| 527 { | |
| 528 throw OrthancException(ErrorCode_InternalError); | |
| 529 } | |
| 530 } | |
| 531 #endif | |
| 846 | 532 |
| 533 | |
|
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fully functional JPEG-LS conversion
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parents:
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diff
changeset
|
534 |
|
859
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ImageProcessing::Convert
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changeset
|
535 |
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fully functional JPEG-LS conversion
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|
536 bool DicomImageDecoder::Decode(ImageBuffer& target, |
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fully functional JPEG-LS conversion
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changeset
|
537 DcmDataset& dataset, |
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03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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changeset
|
538 unsigned int frame) |
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03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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diff
changeset
|
539 { |
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03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
846
diff
changeset
|
540 if (IsUncompressedImage(dataset)) |
|
03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
846
diff
changeset
|
541 { |
|
03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
846
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changeset
|
542 DecodeUncompressedImage(target, dataset, frame); |
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03ea55da7429
fully functional JPEG-LS conversion
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parents:
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|
543 return true; |
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03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
846
diff
changeset
|
544 } |
|
03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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diff
changeset
|
545 |
| 852 | 546 |
|
847
03ea55da7429
fully functional JPEG-LS conversion
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parents:
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changeset
|
547 #if ORTHANC_JPEG_LOSSLESS_ENABLED == 1 |
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03ea55da7429
fully functional JPEG-LS conversion
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parents:
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|
548 if (IsJpegLossless(dataset)) |
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03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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changeset
|
549 { |
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03ea55da7429
fully functional JPEG-LS conversion
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|
550 LOG(INFO) << "Decoding a JPEG-LS image"; |
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03ea55da7429
fully functional JPEG-LS conversion
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|
551 DecodeJpegLossless(target, dataset, frame); |
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03ea55da7429
fully functional JPEG-LS conversion
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552 return true; |
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03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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|
553 } |
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03ea55da7429
fully functional JPEG-LS conversion
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|
554 #endif |
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03ea55da7429
fully functional JPEG-LS conversion
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parents:
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|
555 |
| 852 | 556 |
| 557 #if ORTHANC_JPEG_ENABLED == 1 | |
| 558 // TODO Implement this part to speed up JPEG decompression | |
| 559 #endif | |
| 560 | |
| 561 | |
|
847
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fully functional JPEG-LS conversion
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|
562 /** |
|
03ea55da7429
fully functional JPEG-LS conversion
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diff
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|
563 * This DICOM image format is not natively supported by |
|
03ea55da7429
fully functional JPEG-LS conversion
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parents:
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diff
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|
564 * Orthanc. As a last resort, try and decode it through |
|
03ea55da7429
fully functional JPEG-LS conversion
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parents:
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|
565 * DCMTK. This will result in higher memory consumption. This is |
|
03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
846
diff
changeset
|
566 * actually the second example of the following page: |
|
03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
846
diff
changeset
|
567 * http://support.dcmtk.org/docs/mod_dcmjpeg.html#Examples |
|
03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
846
diff
changeset
|
568 **/ |
|
03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
846
diff
changeset
|
569 |
|
03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
846
diff
changeset
|
570 { |
|
03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
846
diff
changeset
|
571 LOG(INFO) << "Using DCMTK to decode a compressed image"; |
|
03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
846
diff
changeset
|
572 |
|
03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
846
diff
changeset
|
573 std::auto_ptr<DcmDataset> converted(dynamic_cast<DcmDataset*>(dataset.clone())); |
|
03ea55da7429
fully functional JPEG-LS conversion
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parents:
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changeset
|
574 converted->chooseRepresentation(EXS_LittleEndianExplicit, NULL); |
|
03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
846
diff
changeset
|
575 |
|
03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
846
diff
changeset
|
576 if (converted->canWriteXfer(EXS_LittleEndianExplicit)) |
|
03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
846
diff
changeset
|
577 { |
|
03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
846
diff
changeset
|
578 DecodeUncompressedImageInternal(target, *converted, frame); |
|
03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
846
diff
changeset
|
579 return true; |
|
03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
846
diff
changeset
|
580 } |
|
03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
846
diff
changeset
|
581 } |
|
03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
846
diff
changeset
|
582 |
|
03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
846
diff
changeset
|
583 return false; |
|
03ea55da7429
fully functional JPEG-LS conversion
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
846
diff
changeset
|
584 } |
|
859
610a9a1ed855
ImageProcessing::Convert
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
858
diff
changeset
|
585 |
|
610a9a1ed855
ImageProcessing::Convert
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
858
diff
changeset
|
586 |
|
610a9a1ed855
ImageProcessing::Convert
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changeset
|
587 bool DicomImageDecoder::Decode(ImageBuffer& target, |
|
610a9a1ed855
ImageProcessing::Convert
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parents:
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changeset
|
588 DcmDataset& dataset, |
|
610a9a1ed855
ImageProcessing::Convert
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parents:
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diff
changeset
|
589 unsigned int frame, |
|
610a9a1ed855
ImageProcessing::Convert
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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diff
changeset
|
590 PixelFormat format, |
|
610a9a1ed855
ImageProcessing::Convert
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parents:
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diff
changeset
|
591 Mode mode) |
|
610a9a1ed855
ImageProcessing::Convert
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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diff
changeset
|
592 { |
| 861 | 593 // TODO OPTIMIZE THIS (avoid unnecessary image copies) !!! |
|
859
610a9a1ed855
ImageProcessing::Convert
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parents:
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diff
changeset
|
594 |
|
610a9a1ed855
ImageProcessing::Convert
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changeset
|
595 ImageBuffer tmp; |
|
610a9a1ed855
ImageProcessing::Convert
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parents:
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diff
changeset
|
596 if (!Decode(tmp, dataset, frame)) |
|
610a9a1ed855
ImageProcessing::Convert
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changeset
|
597 { |
|
610a9a1ed855
ImageProcessing::Convert
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diff
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|
598 return false; |
|
610a9a1ed855
ImageProcessing::Convert
Sebastien Jodogne <s.jodogne@gmail.com>
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diff
changeset
|
599 } |
|
610a9a1ed855
ImageProcessing::Convert
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diff
changeset
|
600 |
| 861 | 601 if (!IsUncompressedImage(dataset) && !IsJpegLossless(dataset)) |
| 602 { | |
| 603 printf("ICI\n"); | |
| 604 PngWriter w; | |
| 605 ImageAccessor b(tmp.GetConstAccessor()); | |
| 606 w.WriteToFile("toto.png", b); | |
| 607 } | |
| 608 | |
|
859
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ImageProcessing::Convert
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changeset
|
609 target.SetFormat(format); |
|
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ImageProcessing::Convert
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diff
changeset
|
610 target.SetWidth(tmp.GetWidth()); |
|
610a9a1ed855
ImageProcessing::Convert
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changeset
|
611 target.SetHeight(tmp.GetHeight()); |
|
610a9a1ed855
ImageProcessing::Convert
Sebastien Jodogne <s.jodogne@gmail.com>
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changeset
|
612 |
|
610a9a1ed855
ImageProcessing::Convert
Sebastien Jodogne <s.jodogne@gmail.com>
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diff
changeset
|
613 switch (mode) |
|
610a9a1ed855
ImageProcessing::Convert
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parents:
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diff
changeset
|
614 { |
|
610a9a1ed855
ImageProcessing::Convert
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diff
changeset
|
615 case Mode_Truncate: |
|
610a9a1ed855
ImageProcessing::Convert
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parents:
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diff
changeset
|
616 { |
| 861 | 617 if (!IsUncompressedImage(dataset) && !IsJpegLossless(dataset)) |
| 618 { | |
| 619 printf("%d => %d\n", tmp.GetFormat(), target.GetFormat()); | |
| 620 } | |
|
859
610a9a1ed855
ImageProcessing::Convert
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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diff
changeset
|
621 ImageAccessor a(target.GetAccessor()); |
| 861 | 622 ImageAccessor b(tmp.GetConstAccessor()); |
|
859
610a9a1ed855
ImageProcessing::Convert
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changeset
|
623 ImageProcessing::Convert(a, b); |
|
610a9a1ed855
ImageProcessing::Convert
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parents:
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diff
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|
624 return true; |
|
610a9a1ed855
ImageProcessing::Convert
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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diff
changeset
|
625 } |
|
610a9a1ed855
ImageProcessing::Convert
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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diff
changeset
|
626 |
|
610a9a1ed855
ImageProcessing::Convert
Sebastien Jodogne <s.jodogne@gmail.com>
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diff
changeset
|
627 default: |
|
610a9a1ed855
ImageProcessing::Convert
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changeset
|
628 throw OrthancException(ErrorCode_NotImplemented); |
|
610a9a1ed855
ImageProcessing::Convert
Sebastien Jodogne <s.jodogne@gmail.com>
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diff
changeset
|
629 } |
|
610a9a1ed855
ImageProcessing::Convert
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
858
diff
changeset
|
630 |
|
610a9a1ed855
ImageProcessing::Convert
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
858
diff
changeset
|
631 return false; |
|
610a9a1ed855
ImageProcessing::Convert
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
858
diff
changeset
|
632 } |
|
610a9a1ed855
ImageProcessing::Convert
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
858
diff
changeset
|
633 |
|
610a9a1ed855
ImageProcessing::Convert
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
858
diff
changeset
|
634 |
|
610a9a1ed855
ImageProcessing::Convert
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
858
diff
changeset
|
635 |
| 845 | 636 } |