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annotate Framework/Inputs/PlainTiff.cpp @ 298:fa734a851551

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New option: "tiff-alignment" to control deep zoom of plain TIFF over IIIF
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 18 Jul 2023 08:19:16 +0200
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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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) 2021-2023 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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7 *
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8 * This program is free software: you can redistribute it and/or
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9 * modify it under the terms of the GNU Affero General Public License
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10 * as published by the Free Software Foundation, either version 3 of
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11 * the License, or (at your option) any later version.
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12 *
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13 * This program is distributed in the hope that it will be useful, but
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 * Affero General Public License for more details.
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17 *
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18 * You should have received a copy of the GNU Affero General Public License
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19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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20 **/
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21
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22
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23 #include "PlainTiff.h"
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24
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25 #include "../TiffReader.h"
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26
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27 #include <Images/Image.h>
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28 #include <Images/ImageProcessing.h>
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29 #include <Logging.h>
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30 #include <OrthancException.h>
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31
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32 #include <cassert>
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33 #include <string.h>
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34
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35
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36 namespace OrthancWSI
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37 {
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38 PlainTiff::PlainTiff(const std::string& path,
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39 unsigned int tileWidth,
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40 unsigned int tileHeight,
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41 unsigned int paddingAlignement,
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42 uint8_t paddingRed,
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43 uint8_t paddingGreen,
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44 uint8_t paddingBlue) :
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45 SingleLevelDecodedPyramid(tileWidth, tileHeight)
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46 {
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47 TiffReader reader(path);
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48
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49 // Look for the largest sub-image
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50 bool first = true;
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51 unsigned int width = 0;
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52 unsigned int height = 0;
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53 tdir_t largest = 0;
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54
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55 tdir_t pos = 0;
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56
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57 do
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58 {
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59 uint32_t w, h, tw, th;
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60
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61 if (TIFFSetDirectory(reader.GetTiff(), pos) &&
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62 !TIFFGetField(reader.GetTiff(), TIFFTAG_TILEWIDTH, &tw) && // Must not be a tiled image
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63 !TIFFGetField(reader.GetTiff(), TIFFTAG_TILELENGTH, &th) && // Must not be a tiled image
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64 TIFFGetField(reader.GetTiff(), TIFFTAG_IMAGEWIDTH, &w) &&
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65 TIFFGetField(reader.GetTiff(), TIFFTAG_IMAGELENGTH, &h) &&
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66 w > 0 &&
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67 h > 0)
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68 {
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69 if (first)
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70 {
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71 first = false;
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72 width = w;
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73 height = h;
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74 largest = pos;
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75 }
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76 else if (w > width &&
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77 h > height)
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78 {
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79 width = w;
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80 height = h;
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81 largest = pos;
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82 }
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83 }
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84
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85 pos++;
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86 }
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87 while (TIFFReadDirectory(reader.GetTiff()));
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88
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89 if (first)
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90 {
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91 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat, "This is an empty TIFF image");
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92 }
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93
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94 // Back to the largest directory
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95 if (!TIFFSetDirectory(reader.GetTiff(), largest))
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96 {
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97 throw Orthanc::OrthancException(Orthanc::ErrorCode_CorruptedFile);
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98 }
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99
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100 ImageCompression compression;
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101 Orthanc::PixelFormat pixelFormat;
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102 Orthanc::PhotometricInterpretation photometric;
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103
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104 if (!reader.GetCurrentDirectoryInformation(compression, pixelFormat, photometric))
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105 {
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106 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented);
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107 }
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108
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109 if (pixelFormat != Orthanc::PixelFormat_RGB24)
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110 {
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111 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented);
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112 }
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113
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114 LOG(WARNING) << "Size of the source TIFF image: " << width << "x" << height;
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115
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116 const unsigned int paddedWidth = paddingAlignement * CeilingDivision(width, paddingAlignement);
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117 const unsigned int paddedHeight = paddingAlignement * CeilingDivision(height, paddingAlignement);
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118 assert(paddedWidth >= width &&
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119 paddedHeight >= height);
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120
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121 LOG(WARNING) << "Size of the padded TIFF image: " << paddedWidth << "x" << paddedHeight;
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122
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123 decoded_.reset(new Orthanc::Image(pixelFormat, paddedWidth, paddedHeight, false));
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124 Orthanc::ImageProcessing::Set(*decoded_, paddingRed, paddingGreen, paddingBlue, 255);
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125
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126 std::string strip;
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127 strip.resize(TIFFStripSize(reader.GetTiff()));
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128
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129 const size_t stripPitch = width * Orthanc::GetBytesPerPixel(pixelFormat);
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130
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131 if (strip.empty() ||
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132 stripPitch == 0 ||
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133 strip.size() < stripPitch ||
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134 strip.size() % stripPitch != 0)
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135 {
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136 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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137 }
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138
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139 const size_t stripHeight = (strip.size() / stripPitch);
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140 const size_t stripCount = CeilingDivision(height, stripHeight);
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141
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142 if (TIFFNumberOfStrips(reader.GetTiff()) != stripCount)
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143 {
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144 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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145 }
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146
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147 for (unsigned int i = 0; i < stripCount; i++)
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148 {
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149 TIFFReadEncodedStrip(reader.GetTiff(), i, &strip[0], static_cast<tsize_t>(-1));
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150
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151 const unsigned int y = i * stripHeight;
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152
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153 const uint8_t* p = reinterpret_cast<const uint8_t*>(&strip[0]);
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154 uint8_t* q = reinterpret_cast<uint8_t*>(decoded_->GetRow(y));
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155
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156 for (unsigned j = 0; j < stripHeight && y + j < height; j++)
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157 {
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158 memcpy(q, p, stripPitch);
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159 p += stripPitch;
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160 q += decoded_->GetPitch();
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161 }
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162 }
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163
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164 SetImage(*decoded_);
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165 }
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166 }