Mercurial > hg > orthanc-wsi
annotate Framework/TiffReader.cpp @ 320:196d0e18afa0
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Wed, 16 Oct 2024 14:58:02 +0200 |
| parents | 0683312e21ba |
| children |
| 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) 2017-2023 Osimis S.A., Belgium |
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6 * Copyright (C) 2024-2024 Orthanc Team SRL, Belgium |
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7 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
| 297 | 8 * |
| 9 * This program is free software: you can redistribute it and/or | |
| 10 * modify it under the terms of the GNU Affero General Public License | |
| 11 * as published by the Free Software Foundation, either version 3 of | |
| 12 * the License, or (at your option) any later version. | |
| 13 * | |
| 14 * This program is distributed in the hope that it will be useful, but | |
| 15 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 17 * Affero General Public License for more details. | |
| 18 * | |
| 19 * You should have received a copy of the GNU Affero General Public License | |
| 20 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 21 **/ | |
| 22 | |
| 23 | |
| 24 #include "TiffReader.h" | |
| 25 | |
| 26 #include <Logging.h> | |
| 27 #include <OrthancException.h> | |
| 28 | |
| 29 namespace OrthancWSI | |
| 30 { | |
| 31 TiffReader::TiffReader(const std::string& path) | |
| 32 { | |
| 33 tiff_ = TIFFOpen(path.c_str(), "r"); | |
| 34 if (tiff_ == NULL) | |
| 35 { | |
| 36 throw Orthanc::OrthancException(Orthanc::ErrorCode_InexistentFile, | |
| 37 "libtiff cannot open: " + path); | |
| 38 } | |
| 39 } | |
| 40 | |
| 41 | |
| 42 TiffReader::~TiffReader() | |
| 43 { | |
| 44 if (tiff_) | |
| 45 { | |
| 46 TIFFClose(tiff_); | |
| 47 tiff_ = NULL; | |
| 48 } | |
| 49 } | |
| 50 | |
| 51 | |
| 52 bool TiffReader::GetCurrentDirectoryInformation(ImageCompression& compression, | |
| 53 Orthanc::PixelFormat& pixelFormat, | |
| 54 Orthanc::PhotometricInterpretation& photometric) | |
| 55 { | |
| 56 uint16_t c; | |
| 57 if (!TIFFGetField(tiff_, TIFFTAG_COMPRESSION, &c)) | |
| 58 { | |
| 59 return false; | |
| 60 } | |
| 61 | |
| 62 switch (c) | |
| 63 { | |
| 64 case COMPRESSION_NONE: | |
| 65 compression = ImageCompression_None; | |
| 66 break; | |
| 67 | |
| 68 case COMPRESSION_JPEG: | |
| 69 compression = ImageCompression_Jpeg; | |
| 70 break; | |
| 71 | |
| 72 default: | |
| 73 return false; | |
| 74 } | |
| 75 | |
| 76 // http://www.awaresystems.be/imaging/tiff/tifftags/baseline.html | |
| 77 | |
| 78 uint16_t channels, photometricTiff, bpp, planar; | |
| 79 if (!TIFFGetField(tiff_, TIFFTAG_SAMPLESPERPIXEL, &channels) || | |
| 80 channels == 0 || | |
| 81 !TIFFGetField(tiff_, TIFFTAG_PHOTOMETRIC, &photometricTiff) || | |
| 82 !TIFFGetField(tiff_, TIFFTAG_BITSPERSAMPLE, &bpp) || | |
| 83 !TIFFGetField(tiff_, TIFFTAG_PLANARCONFIG, &planar)) | |
| 84 { | |
| 85 return false; | |
| 86 } | |
| 87 | |
| 88 if (compression == ImageCompression_Jpeg && | |
| 89 channels == 3 && // This is a color image | |
| 90 bpp == 8 && | |
| 91 planar == PLANARCONFIG_CONTIG) // This is interleaved RGB | |
| 92 { | |
| 93 pixelFormat = Orthanc::PixelFormat_RGB24; | |
| 94 | |
| 95 switch (photometricTiff) | |
| 96 { | |
| 97 case PHOTOMETRIC_YCBCR: | |
| 98 photometric = Orthanc::PhotometricInterpretation_YBRFull422; | |
| 99 break; | |
| 100 | |
| 101 case PHOTOMETRIC_RGB: | |
| 102 photometric = Orthanc::PhotometricInterpretation_RGB; | |
| 103 break; | |
| 104 | |
| 105 default: | |
| 106 LOG(ERROR) << "Unknown photometric interpretation in TIFF: " << photometricTiff; | |
| 107 return false; | |
| 108 } | |
| 109 } | |
| 110 else if (compression == ImageCompression_None && | |
| 111 channels == 3 && // This is a color image | |
| 112 bpp == 8 && | |
| 113 planar == PLANARCONFIG_CONTIG) // This is interleaved RGB | |
| 114 { | |
| 115 pixelFormat = Orthanc::PixelFormat_RGB24; | |
| 116 photometric = Orthanc::PhotometricInterpretation_RGB; | |
| 117 } | |
| 118 else if (compression == ImageCompression_Jpeg && | |
| 119 channels == 1 && // This is a grayscale image | |
| 120 bpp == 8) | |
| 121 { | |
| 122 pixelFormat = Orthanc::PixelFormat_Grayscale8; | |
| 123 photometric = Orthanc::PhotometricInterpretation_Monochrome2; | |
| 124 } | |
| 125 else | |
| 126 { | |
| 127 return false; | |
| 128 } | |
| 129 | |
| 130 return true; | |
| 131 } | |
| 132 } |