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<h1>Source code for torchreid.data.datasets.image.dukemtmcreid</h1><div class="highlight"><pre>
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<span></span><span class="kn">from</span> <span class="nn">__future__</span> <span class="k">import</span> <span class="n">absolute_import</span>
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<span class="kn">from</span> <span class="nn">__future__</span> <span class="k">import</span> <span class="n">print_function</span>
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<span class="kn">from</span> <span class="nn">__future__</span> <span class="k">import</span> <span class="n">division</span>
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<span class="kn">import</span> <span class="nn">os.path</span> <span class="k">as</span> <span class="nn">osp</span>
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<span class="kn">import</span> <span class="nn">glob</span>
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<span class="kn">import</span> <span class="nn">re</span>
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<span class="kn">from</span> <span class="nn">torchreid.data.datasets</span> <span class="k">import</span> <span class="n">ImageDataset</span>
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<div class="viewcode-block" id="DukeMTMCreID"><a class="viewcode-back" href="../../../../../pkg/data.html#torchreid.data.datasets.image.dukemtmcreid.DukeMTMCreID">[docs]</a><span class="k">class</span> <span class="nc">DukeMTMCreID</span><span class="p">(</span><span class="n">ImageDataset</span><span class="p">):</span>
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<span class="sd">"""DukeMTMC-reID.</span>
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<span class="sd"> Reference:</span>
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<span class="sd"> - Ristani et al. Performance Measures and a Data Set for Multi-Target, Multi-Camera Tracking. ECCVW 2016.</span>
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<span class="sd"> - Zheng et al. Unlabeled Samples Generated by GAN Improve the Person Re-identification Baseline in vitro. ICCV 2017.</span>
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<span class="sd"> URL: `<https://github.com/layumi/DukeMTMC-reID_evaluation>`_</span>
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<span class="sd"> </span>
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<span class="sd"> Dataset statistics:</span>
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<span class="sd"> - identities: 1404 (train + query).</span>
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<span class="sd"> - images:16522 (train) + 2228 (query) + 17661 (gallery).</span>
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<span class="sd"> - cameras: 8.</span>
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<span class="sd"> """</span>
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<span class="n">dataset_dir</span> <span class="o">=</span> <span class="s1">'dukemtmc-reid'</span>
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<span class="n">dataset_url</span> <span class="o">=</span> <span class="s1">'http://vision.cs.duke.edu/DukeMTMC/data/misc/DukeMTMC-reID.zip'</span>
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<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="s1">''</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">root</span> <span class="o">=</span> <span class="n">osp</span><span class="o">.</span><span class="n">abspath</span><span class="p">(</span><span class="n">osp</span><span class="o">.</span><span class="n">expanduser</span><span class="p">(</span><span class="n">root</span><span class="p">))</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">dataset_dir</span> <span class="o">=</span> <span class="n">osp</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">root</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">dataset_dir</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">download_dataset</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">dataset_dir</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">dataset_url</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">train_dir</span> <span class="o">=</span> <span class="n">osp</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">dataset_dir</span><span class="p">,</span> <span class="s1">'DukeMTMC-reID/bounding_box_train'</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">query_dir</span> <span class="o">=</span> <span class="n">osp</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">dataset_dir</span><span class="p">,</span> <span class="s1">'DukeMTMC-reID/query'</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">gallery_dir</span> <span class="o">=</span> <span class="n">osp</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">dataset_dir</span><span class="p">,</span> <span class="s1">'DukeMTMC-reID/bounding_box_test'</span><span class="p">)</span>
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<span class="n">required_files</span> <span class="o">=</span> <span class="p">[</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">dataset_dir</span><span class="p">,</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">train_dir</span><span class="p">,</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">query_dir</span><span class="p">,</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">gallery_dir</span>
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<span class="p">]</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">check_before_run</span><span class="p">(</span><span class="n">required_files</span><span class="p">)</span>
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<span class="n">train</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">process_dir</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">train_dir</span><span class="p">,</span> <span class="n">relabel</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
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<span class="n">query</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">process_dir</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">query_dir</span><span class="p">,</span> <span class="n">relabel</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span>
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<span class="n">gallery</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">process_dir</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">gallery_dir</span><span class="p">,</span> <span class="n">relabel</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span>
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<span class="nb">super</span><span class="p">(</span><span class="n">DukeMTMCreID</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="n">train</span><span class="p">,</span> <span class="n">query</span><span class="p">,</span> <span class="n">gallery</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
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<span class="k">def</span> <span class="nf">process_dir</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">dir_path</span><span class="p">,</span> <span class="n">relabel</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
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<span class="n">img_paths</span> <span class="o">=</span> <span class="n">glob</span><span class="o">.</span><span class="n">glob</span><span class="p">(</span><span class="n">osp</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">dir_path</span><span class="p">,</span> <span class="s1">'*.jpg'</span><span class="p">))</span>
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<span class="n">pattern</span> <span class="o">=</span> <span class="n">re</span><span class="o">.</span><span class="n">compile</span><span class="p">(</span><span class="sa">r</span><span class="s1">'([-\d]+)_c(\d)'</span><span class="p">)</span>
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<span class="n">pid_container</span> <span class="o">=</span> <span class="nb">set</span><span class="p">()</span>
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<span class="k">for</span> <span class="n">img_path</span> <span class="ow">in</span> <span class="n">img_paths</span><span class="p">:</span>
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<span class="n">pid</span><span class="p">,</span> <span class="n">_</span> <span class="o">=</span> <span class="nb">map</span><span class="p">(</span><span class="nb">int</span><span class="p">,</span> <span class="n">pattern</span><span class="o">.</span><span class="n">search</span><span class="p">(</span><span class="n">img_path</span><span class="p">)</span><span class="o">.</span><span class="n">groups</span><span class="p">())</span>
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<span class="n">pid_container</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">pid</span><span class="p">)</span>
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<span class="n">pid2label</span> <span class="o">=</span> <span class="p">{</span><span class="n">pid</span><span class="p">:</span><span class="n">label</span> <span class="k">for</span> <span class="n">label</span><span class="p">,</span> <span class="n">pid</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="n">pid_container</span><span class="p">)}</span>
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<span class="n">data</span> <span class="o">=</span> <span class="p">[]</span>
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<span class="k">for</span> <span class="n">img_path</span> <span class="ow">in</span> <span class="n">img_paths</span><span class="p">:</span>
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<span class="n">pid</span><span class="p">,</span> <span class="n">camid</span> <span class="o">=</span> <span class="nb">map</span><span class="p">(</span><span class="nb">int</span><span class="p">,</span> <span class="n">pattern</span><span class="o">.</span><span class="n">search</span><span class="p">(</span><span class="n">img_path</span><span class="p">)</span><span class="o">.</span><span class="n">groups</span><span class="p">())</span>
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<span class="k">assert</span> <span class="mi">1</span> <span class="o"><=</span> <span class="n">camid</span> <span class="o"><=</span> <span class="mi">8</span>
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<span class="n">camid</span> <span class="o">-=</span> <span class="mi">1</span> <span class="c1"># index starts from 0</span>
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<span class="k">if</span> <span class="n">relabel</span><span class="p">:</span> <span class="n">pid</span> <span class="o">=</span> <span class="n">pid2label</span><span class="p">[</span><span class="n">pid</span><span class="p">]</span>
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<span class="n">data</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">img_path</span><span class="p">,</span> <span class="n">pid</span><span class="p">,</span> <span class="n">camid</span><span class="p">))</span>
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<span class="k">return</span> <span class="n">data</span></div>
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