Mercurial > hg > orthanc-wsi
annotate Framework/Inputs/CytomineImage.cpp @ 257:9af4ba0d92fe iiif
support of full rendering in IIIF
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Sun, 09 Jul 2023 15:24:37 +0200 |
parents | 20a730889ae2 |
children | 7020852a8fa9 |
rev | line source |
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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 |
254 | 5 * Copyright (C) 2017-2023 Osimis S.A., Belgium |
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 "CytomineImage.h" |
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24 |
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25 #include <Compatibility.h> |
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26 #include <Images/ImageProcessing.h> |
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27 #include <Images/JpegReader.h> |
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28 #include <Images/JpegWriter.h> |
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29 #include <Images/PngReader.h> |
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30 #include <Logging.h> |
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31 #include <OrthancException.h> |
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32 #include <Toolbox.h> |
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33 |
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34 #include <boost/date_time/posix_time/posix_time.hpp> |
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35 #include <boost/lexical_cast.hpp> |
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36 #include <openssl/hmac.h> |
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37 |
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38 |
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39 #if (OPENSSL_VERSION_NUMBER < 0x10100000L) |
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40 // OpenSSL < 1.1.0 |
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41 |
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42 namespace |
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43 { |
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44 class HmacContext : public boost::noncopyable |
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45 { |
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46 private: |
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47 HMAC_CTX hmac_; |
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48 |
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49 public: |
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50 HmacContext() |
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51 { |
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52 HMAC_CTX_init(&hmac_); |
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53 } |
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54 |
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55 ~HmacContext() |
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56 { |
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57 HMAC_CTX_cleanup(&hmac_); |
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58 } |
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59 |
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60 HMAC_CTX* GetObject() |
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61 { |
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62 return &hmac_; |
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63 } |
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64 }; |
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65 } |
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66 |
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67 #else |
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68 // OpenSSL >= 1.1.0 |
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69 |
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70 namespace |
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71 { |
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72 class HmacContext : public boost::noncopyable |
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73 { |
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74 private: |
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75 HMAC_CTX* hmac_; |
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76 |
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77 public: |
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78 HmacContext() |
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79 { |
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80 hmac_ = HMAC_CTX_new(); |
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81 if (hmac_ == NULL) |
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82 { |
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83 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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84 } |
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85 } |
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86 |
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87 ~HmacContext() |
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88 { |
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89 HMAC_CTX_free(hmac_); |
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90 } |
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91 |
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92 HMAC_CTX* GetObject() |
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93 { |
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94 return hmac_; |
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95 } |
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96 }; |
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97 } |
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98 |
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99 #endif |
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100 |
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101 |
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102 namespace OrthancWSI |
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103 { |
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104 bool CytomineImage::GetCytomine(std::string& target, |
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105 const std::string& uri, |
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106 Orthanc::MimeType contentType) const |
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107 { |
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108 if (uri.empty() || |
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109 uri[0] == '/') |
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110 { |
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111 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); |
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112 } |
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113 |
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114 std::string t = Orthanc::EnumerationToString(contentType); |
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115 |
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116 std::string date; |
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117 |
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118 { |
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119 const boost::posix_time::ptime now = boost::posix_time::second_clock::universal_time(); |
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120 |
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121 std::stringstream stream; |
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122 stream.imbue(std::locale(std::locale::classic(), |
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123 new boost::posix_time::time_facet("%a, %d %b %Y %H:%M:%S +0000"))); |
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124 stream << now; |
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125 date = stream.str(); |
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126 } |
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127 |
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128 std::string auth; |
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129 |
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130 { |
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131 const std::string token = "GET\n\n" + t + "\n" + date + "\n/" + uri; |
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132 |
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133 HmacContext hmac; |
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134 |
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135 unsigned char md[64]; |
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136 unsigned int length = 0; |
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137 |
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138 if (HMAC_Init_ex(hmac.GetObject(), privateKey_.c_str(), privateKey_.length(), EVP_sha1(), NULL) != 1 || |
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139 HMAC_Update(hmac.GetObject(), reinterpret_cast<const unsigned char*>(token.c_str()), token.size()) != 1 || |
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140 HMAC_Final(hmac.GetObject(), md, &length) != 1) |
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141 { |
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142 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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143 } |
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144 |
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145 Orthanc::Toolbox::EncodeBase64(auth, std::string(reinterpret_cast<const char*>(md), length)); |
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146 } |
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147 |
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148 Orthanc::HttpClient c(parameters_, uri); |
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149 c.AddHeader("content-type", t); |
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150 c.AddHeader("authorization", "CYTOMINE " + publicKey_ + ":" + auth); |
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151 c.AddHeader("date", date); |
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152 |
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153 return c.Apply(target); |
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154 } |
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155 |
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156 |
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157 void CytomineImage::ReadRegion(Orthanc::ImageAccessor& target, |
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158 unsigned int level, |
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159 unsigned int x, |
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160 unsigned int y) |
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161 { |
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162 if (level != 0 || |
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163 x >= fullWidth_ || |
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164 y >= fullHeight_) |
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165 { |
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166 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); |
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167 } |
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168 |
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169 unsigned int w = std::min(tileWidth_, fullWidth_ - x); |
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170 unsigned int h = std::min(tileHeight_, fullHeight_ - y); |
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171 |
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172 std::string extension; |
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173 Orthanc::MimeType mime; |
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174 |
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175 switch (compression_) |
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176 { |
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177 case ImageCompression_Png: |
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178 extension = ".png"; |
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179 mime = Orthanc::MimeType_Png; |
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180 break; |
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181 |
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182 case ImageCompression_Jpeg: |
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183 // 20.03user 0.58system 0:32.58elapsed 63%CPU (0avgtext+0avgdata 397808maxresident)k |
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184 extension = ".jpg"; |
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185 mime = Orthanc::MimeType_Jpeg; |
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186 break; |
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187 |
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188 default: |
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189 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); |
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190 } |
243
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191 |
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192 const std::string uri = ("api/imageinstance/" + boost::lexical_cast<std::string>(imageId_) + "/window-" + |
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193 boost::lexical_cast<std::string>(x) + "-" + |
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194 boost::lexical_cast<std::string>(y) + "-" + |
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195 boost::lexical_cast<std::string>(w) + "-" + |
244
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196 boost::lexical_cast<std::string>(h) + extension); |
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197 |
244
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198 std::string compressedImage; |
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199 if (!GetCytomine(compressedImage, uri, mime)) |
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200 { |
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201 throw Orthanc::OrthancException(Orthanc::ErrorCode_NetworkProtocol, "Cannot read a tile from Cytomine"); |
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202 } |
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203 |
244
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204 std::unique_ptr<Orthanc::ImageAccessor> reader; |
243
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205 |
244
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206 switch (compression_) |
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207 { |
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208 case ImageCompression_Png: |
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209 reader.reset(new Orthanc::PngReader); |
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210 dynamic_cast<Orthanc::PngReader&>(*reader).ReadFromMemory(compressedImage); |
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211 break; |
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212 |
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213 case ImageCompression_Jpeg: |
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214 reader.reset(new Orthanc::JpegReader); |
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215 dynamic_cast<Orthanc::JpegReader&>(*reader).ReadFromMemory(compressedImage); |
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216 break; |
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217 |
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218 default: |
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219 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); |
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220 } |
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221 |
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222 assert(reader.get() != NULL); |
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223 |
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224 if (reader->GetWidth() != w || |
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225 reader->GetHeight() != h) |
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226 { |
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227 throw Orthanc::OrthancException(Orthanc::ErrorCode_NetworkProtocol, "Cytomine returned a tile of bad size"); |
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228 } |
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229 |
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230 Orthanc::ImageProcessing::Set(target, 255, 255, 255, 255); |
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231 |
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232 Orthanc::ImageAccessor region; |
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233 target.GetRegion(region, 0, 0, w, h); |
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234 |
244
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235 Orthanc::ImageProcessing::Copy(target, *reader); |
243
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236 } |
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237 |
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238 |
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239 CytomineImage::CytomineImage(const Orthanc::WebServiceParameters& parameters, |
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240 const std::string& publicKey, |
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241 const std::string& privateKey, |
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242 int imageId, |
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243 unsigned int tileWidth, |
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244 unsigned int tileHeight) : |
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245 parameters_(parameters), |
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246 publicKey_(publicKey), |
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247 privateKey_(privateKey), |
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248 imageId_(imageId), |
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249 tileWidth_(tileWidth), |
244
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250 tileHeight_(tileHeight), |
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251 compression_(ImageCompression_Jpeg) |
243
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252 { |
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253 if (tileWidth_ < 16 || |
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254 tileHeight_ < 16) |
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255 { |
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256 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); |
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257 } |
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258 |
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259 std::string info; |
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260 if (!GetCytomine(info, "api/imageinstance/" + boost::lexical_cast<std::string>(imageId_) + ".json", Orthanc::MimeType_Json)) |
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261 { |
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262 throw Orthanc::OrthancException(Orthanc::ErrorCode_UnknownResource, "Inexistent image in Cytomine: " + |
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263 boost::lexical_cast<std::string>(imageId)); |
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264 } |
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265 |
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266 const char* const WIDTH = "width"; |
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267 const char* const HEIGHT = "height"; |
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268 |
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269 Json::Value json; |
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270 if (!Orthanc::Toolbox::ReadJson(json, info) || |
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271 !json.isMember(WIDTH) || |
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272 !json.isMember(HEIGHT) || |
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273 json[WIDTH].type() != Json::intValue || |
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274 json[HEIGHT].type() != Json::intValue || |
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275 json[WIDTH].asInt() < 0 || |
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276 json[HEIGHT].asInt() < 0) |
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277 { |
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278 throw Orthanc::OrthancException(Orthanc::ErrorCode_NetworkProtocol, "Unsupported version of the Cytomine REST API"); |
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279 } |
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280 |
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281 fullWidth_ = json[WIDTH].asUInt(); |
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282 fullHeight_ = json[HEIGHT].asUInt(); |
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283 LOG(INFO) << "Reading an image of size " << fullWidth_ << "x" << fullHeight_ << " from Cytomine"; |
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284 } |
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285 |
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286 |
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287 unsigned int CytomineImage::GetLevelWidth(unsigned int level) const |
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288 { |
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289 if (level == 0) |
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290 { |
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291 return fullWidth_; |
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292 } |
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293 else |
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294 { |
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295 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); |
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296 } |
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297 } |
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298 |
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299 |
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300 unsigned int CytomineImage::GetLevelHeight(unsigned int level) const |
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301 { |
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302 if (level == 0) |
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303 { |
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304 return fullHeight_; |
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305 } |
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306 else |
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307 { |
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308 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); |
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309 } |
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310 } |
244
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311 |
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312 |
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313 void CytomineImage::SetImageCompression(ImageCompression compression) |
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314 { |
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315 if (compression == ImageCompression_Jpeg || |
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316 compression == ImageCompression_Png) |
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317 { |
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318 compression_ = compression; |
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319 } |
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320 else |
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321 { |
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322 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); |
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323 } |
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324 } |
243
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325 } |