Mercurial > hg > orthanc
view Core/DicomFormat/DicomImageInformation.cpp @ 2016:0ae26237569a
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Mon, 13 Jun 2016 15:26:20 +0200 |
parents | 6c73df12ca51 |
children | a3a65de1840f |
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/** * Orthanc - A Lightweight, RESTful DICOM Store * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics * Department, University Hospital of Liege, Belgium * * This program is free software: you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * In addition, as a special exception, the copyright holders of this * program give permission to link the code of its release with the * OpenSSL project's "OpenSSL" library (or with modified versions of it * that use the same license as the "OpenSSL" library), and distribute * the linked executables. You must obey the GNU General Public License * in all respects for all of the code used other than "OpenSSL". If you * modify file(s) with this exception, you may extend this exception to * your version of the file(s), but you are not obligated to do so. If * you do not wish to do so, delete this exception statement from your * version. If you delete this exception statement from all source files * in the program, then also delete it here. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. **/ #include "../PrecompiledHeaders.h" #ifndef NOMINMAX #define NOMINMAX #endif #include "DicomImageInformation.h" #include "../OrthancException.h" #include "../Toolbox.h" #include <boost/lexical_cast.hpp> #include <limits> #include <cassert> #include <stdio.h> namespace Orthanc { DicomImageInformation::DicomImageInformation(const DicomMap& values) { unsigned int pixelRepresentation; unsigned int planarConfiguration = 0; try { std::string p = values.GetValue(DICOM_TAG_PHOTOMETRIC_INTERPRETATION).GetContent(); Toolbox::ToUpperCase(p); if (p == "RGB") { photometric_ = PhotometricInterpretation_RGB; } else if (p == "MONOCHROME1") { photometric_ = PhotometricInterpretation_Monochrome1; } else if (p == "MONOCHROME2") { photometric_ = PhotometricInterpretation_Monochrome2; } else if (p == "PALETTE COLOR") { photometric_ = PhotometricInterpretation_Palette; } else if (p == "HSV") { photometric_ = PhotometricInterpretation_HSV; } else if (p == "ARGB") { photometric_ = PhotometricInterpretation_ARGB; } else if (p == "CMYK") { photometric_ = PhotometricInterpretation_CMYK; } else if (p == "YBR_FULL") { photometric_ = PhotometricInterpretation_YBRFull; } else if (p == "YBR_FULL_422") { photometric_ = PhotometricInterpretation_YBRFull422; } else if (p == "YBR_PARTIAL_420") { photometric_ = PhotometricInterpretation_YBRPartial420; } else if (p == "YBR_PARTIAL_422") { photometric_ = PhotometricInterpretation_YBRPartial422; } else if (p == "YBR_ICT") { photometric_ = PhotometricInterpretation_YBR_ICT; } else if (p == "YBR_RCT") { photometric_ = PhotometricInterpretation_YBR_RCT; } else { photometric_ = PhotometricInterpretation_Unknown; } width_ = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_COLUMNS).GetContent()); height_ = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_ROWS).GetContent()); bitsAllocated_ = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_BITS_ALLOCATED).GetContent()); try { samplesPerPixel_ = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_SAMPLES_PER_PIXEL).GetContent()); } catch (OrthancException&) { samplesPerPixel_ = 1; // Assume 1 color channel } try { bitsStored_ = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_BITS_STORED).GetContent()); } catch (OrthancException&) { bitsStored_ = bitsAllocated_; } try { highBit_ = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_HIGH_BIT).GetContent()); } catch (OrthancException&) { highBit_ = bitsStored_ - 1; } try { pixelRepresentation = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_PIXEL_REPRESENTATION).GetContent()); } catch (OrthancException&) { pixelRepresentation = 0; // Assume unsigned pixels } if (samplesPerPixel_ > 1) { // The "Planar Configuration" is only set when "Samples per Pixels" is greater than 1 // http://dicom.nema.org/medical/dicom/current/output/html/part03.html#sect_C.7.6.3.1.3 try { planarConfiguration = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_PLANAR_CONFIGURATION).GetContent()); } catch (OrthancException&) { planarConfiguration = 0; // Assume interleaved color channels } } } catch (boost::bad_lexical_cast&) { throw OrthancException(ErrorCode_NotImplemented); } catch (OrthancException&) { throw OrthancException(ErrorCode_NotImplemented); } try { numberOfFrames_ = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_NUMBER_OF_FRAMES).GetContent()); } catch (OrthancException&) { // If the tag "NumberOfFrames" is absent, assume there is a single frame numberOfFrames_ = 1; } catch (boost::bad_lexical_cast&) { throw OrthancException(ErrorCode_NotImplemented); } if ((bitsAllocated_ != 8 && bitsAllocated_ != 16 && bitsAllocated_ != 24 && bitsAllocated_ != 32) || numberOfFrames_ == 0 || (planarConfiguration != 0 && planarConfiguration != 1)) { throw OrthancException(ErrorCode_NotImplemented); } if (bitsAllocated_ > 32 || bitsStored_ >= 32) { // Not available, as the accessor internally uses int32_t values throw OrthancException(ErrorCode_NotImplemented); } if (samplesPerPixel_ == 0) { throw OrthancException(ErrorCode_NotImplemented); } bytesPerValue_ = bitsAllocated_ / 8; isPlanar_ = (planarConfiguration != 0 ? true : false); isSigned_ = (pixelRepresentation != 0 ? true : false); } bool DicomImageInformation::ExtractPixelFormat(PixelFormat& format, bool ignorePhotometricInterpretation) const { if (photometric_ == PhotometricInterpretation_Palette) { return false; } if (ignorePhotometricInterpretation || photometric_ == PhotometricInterpretation_Monochrome1 || photometric_ == PhotometricInterpretation_Monochrome2) { if (GetBitsStored() == 8 && GetChannelCount() == 1 && !IsSigned()) { format = PixelFormat_Grayscale8; return true; } if (GetBitsAllocated() == 16 && GetChannelCount() == 1 && !IsSigned()) { format = PixelFormat_Grayscale16; return true; } if (GetBitsAllocated() == 16 && GetChannelCount() == 1 && IsSigned()) { format = PixelFormat_SignedGrayscale16; return true; } } if (GetBitsStored() == 8 && GetChannelCount() == 3 && !IsSigned() && (ignorePhotometricInterpretation || photometric_ == PhotometricInterpretation_RGB)) { format = PixelFormat_RGB24; return true; } return false; } size_t DicomImageInformation::GetFrameSize() const { return (GetHeight() * GetWidth() * GetBytesPerValue() * GetChannelCount()); } }