Mercurial > hg > orthanc
view Core/DicomFormat/DicomImageInformation.cpp @ 2756:e00128fc021e Orthanc-0.8.4
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 17 Jul 2018 09:41:06 +0200 |
parents | 3c0d0836f704 |
children | f5b0207967bc |
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/** * Orthanc - A Lightweight, RESTful DICOM Store * Copyright (C) 2012-2014 Medical Physics Department, CHU 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 <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 { width_ = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_COLUMNS).AsString()); height_ = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_ROWS).AsString()); bitsAllocated_ = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_BITS_ALLOCATED).AsString()); try { samplesPerPixel_ = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_SAMPLES_PER_PIXEL).AsString()); } catch (OrthancException&) { samplesPerPixel_ = 1; // Assume 1 color channel } try { bitsStored_ = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_BITS_STORED).AsString()); } catch (OrthancException&) { bitsStored_ = bitsAllocated_; } try { highBit_ = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_HIGH_BIT).AsString()); } catch (OrthancException&) { highBit_ = bitsStored_ - 1; } try { pixelRepresentation = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_PIXEL_REPRESENTATION).AsString()); } catch (OrthancException&) { pixelRepresentation = 0; // Assume unsigned pixels } if (samplesPerPixel_ > 1) { // The "Planar Configuration" is only set when "Samples per Pixels" is greater than 1 // https://www.dabsoft.ch/dicom/3/C.7.6.3.1.3/ try { planarConfiguration = boost::lexical_cast<unsigned int>(values.GetValue(DICOM_TAG_PLANAR_CONFIGURATION).AsString()); } 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).AsString()); } 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) const { if (GetBitsStored() == 8 && GetChannelCount() == 1 && !IsSigned()) { format = PixelFormat_Grayscale8; return true; } if (GetBitsStored() == 8 && GetChannelCount() == 3 && !IsSigned()) { format = PixelFormat_RGB24; return true; } if (GetBitsAllocated() == 16 && GetChannelCount() == 1 && !IsSigned()) { format = PixelFormat_Grayscale16; return true; } if (GetBitsAllocated() == 16 && GetChannelCount() == 1 && IsSigned()) { format = PixelFormat_SignedGrayscale16; return true; } return false; } }