Mercurial > hg > orthanc-wsi
annotate Framework/TiffReader.cpp @ 311:4315bd3bffa7
added CITATION.cff
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Sat, 06 Apr 2024 17:39:24 +0200 |
| parents | 7020852a8fa9 |
| children | 0683312e21ba |
| rev | line source |
|---|---|
| 297 | 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) 2017-2024 Osimis S.A., Belgium |
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6 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
| 297 | 7 * |
| 8 * This program is free software: you can redistribute it and/or | |
| 9 * modify it under the terms of the GNU Affero General Public License | |
| 10 * as published by the Free Software Foundation, either version 3 of | |
| 11 * the License, or (at your option) any later version. | |
| 12 * | |
| 13 * This program is distributed in the hope that it will be useful, but | |
| 14 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 16 * Affero General Public License for more details. | |
| 17 * | |
| 18 * You should have received a copy of the GNU Affero General Public License | |
| 19 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 20 **/ | |
| 21 | |
| 22 | |
| 23 #include "TiffReader.h" | |
| 24 | |
| 25 #include <Logging.h> | |
| 26 #include <OrthancException.h> | |
| 27 | |
| 28 namespace OrthancWSI | |
| 29 { | |
| 30 TiffReader::TiffReader(const std::string& path) | |
| 31 { | |
| 32 tiff_ = TIFFOpen(path.c_str(), "r"); | |
| 33 if (tiff_ == NULL) | |
| 34 { | |
| 35 throw Orthanc::OrthancException(Orthanc::ErrorCode_InexistentFile, | |
| 36 "libtiff cannot open: " + path); | |
| 37 } | |
| 38 } | |
| 39 | |
| 40 | |
| 41 TiffReader::~TiffReader() | |
| 42 { | |
| 43 if (tiff_) | |
| 44 { | |
| 45 TIFFClose(tiff_); | |
| 46 tiff_ = NULL; | |
| 47 } | |
| 48 } | |
| 49 | |
| 50 | |
| 51 bool TiffReader::GetCurrentDirectoryInformation(ImageCompression& compression, | |
| 52 Orthanc::PixelFormat& pixelFormat, | |
| 53 Orthanc::PhotometricInterpretation& photometric) | |
| 54 { | |
| 55 uint16_t c; | |
| 56 if (!TIFFGetField(tiff_, TIFFTAG_COMPRESSION, &c)) | |
| 57 { | |
| 58 return false; | |
| 59 } | |
| 60 | |
| 61 switch (c) | |
| 62 { | |
| 63 case COMPRESSION_NONE: | |
| 64 compression = ImageCompression_None; | |
| 65 break; | |
| 66 | |
| 67 case COMPRESSION_JPEG: | |
| 68 compression = ImageCompression_Jpeg; | |
| 69 break; | |
| 70 | |
| 71 default: | |
| 72 return false; | |
| 73 } | |
| 74 | |
| 75 // http://www.awaresystems.be/imaging/tiff/tifftags/baseline.html | |
| 76 | |
| 77 uint16_t channels, photometricTiff, bpp, planar; | |
| 78 if (!TIFFGetField(tiff_, TIFFTAG_SAMPLESPERPIXEL, &channels) || | |
| 79 channels == 0 || | |
| 80 !TIFFGetField(tiff_, TIFFTAG_PHOTOMETRIC, &photometricTiff) || | |
| 81 !TIFFGetField(tiff_, TIFFTAG_BITSPERSAMPLE, &bpp) || | |
| 82 !TIFFGetField(tiff_, TIFFTAG_PLANARCONFIG, &planar)) | |
| 83 { | |
| 84 return false; | |
| 85 } | |
| 86 | |
| 87 if (compression == ImageCompression_Jpeg && | |
| 88 channels == 3 && // This is a color image | |
| 89 bpp == 8 && | |
| 90 planar == PLANARCONFIG_CONTIG) // This is interleaved RGB | |
| 91 { | |
| 92 pixelFormat = Orthanc::PixelFormat_RGB24; | |
| 93 | |
| 94 switch (photometricTiff) | |
| 95 { | |
| 96 case PHOTOMETRIC_YCBCR: | |
| 97 photometric = Orthanc::PhotometricInterpretation_YBRFull422; | |
| 98 break; | |
| 99 | |
| 100 case PHOTOMETRIC_RGB: | |
| 101 photometric = Orthanc::PhotometricInterpretation_RGB; | |
| 102 break; | |
| 103 | |
| 104 default: | |
| 105 LOG(ERROR) << "Unknown photometric interpretation in TIFF: " << photometricTiff; | |
| 106 return false; | |
| 107 } | |
| 108 } | |
| 109 else if (compression == ImageCompression_None && | |
| 110 channels == 3 && // This is a color image | |
| 111 bpp == 8 && | |
| 112 planar == PLANARCONFIG_CONTIG) // This is interleaved RGB | |
| 113 { | |
| 114 pixelFormat = Orthanc::PixelFormat_RGB24; | |
| 115 photometric = Orthanc::PhotometricInterpretation_RGB; | |
| 116 } | |
| 117 else if (compression == ImageCompression_Jpeg && | |
| 118 channels == 1 && // This is a grayscale image | |
| 119 bpp == 8) | |
| 120 { | |
| 121 pixelFormat = Orthanc::PixelFormat_Grayscale8; | |
| 122 photometric = Orthanc::PhotometricInterpretation_Monochrome2; | |
| 123 } | |
| 124 else | |
| 125 { | |
| 126 return false; | |
| 127 } | |
| 128 | |
| 129 return true; | |
| 130 } | |
| 131 } |