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<div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article">
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<h1>Source code for torchreid.data.datasets.image.cuhk03</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">from</span> <span class="nn">torchreid.data.datasets</span> <span class="k">import</span> <span class="n">ImageDataset</span>
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<span class="kn">from</span> <span class="nn">torchreid.utils</span> <span class="k">import</span> <span class="n">mkdir_if_missing</span><span class="p">,</span> <span class="n">read_json</span><span class="p">,</span> <span class="n">write_json</span>
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<div class="viewcode-block" id="CUHK03"><a class="viewcode-back" href="../../../../../pkg/data.html#torchreid.data.datasets.image.cuhk03.CUHK03">[docs]</a><span class="k">class</span> <span class="nc">CUHK03</span><span class="p">(</span><span class="n">ImageDataset</span><span class="p">):</span>
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<span class="sd">"""CUHK03.</span>
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<span class="sd"> Reference:</span>
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<span class="sd"> Li et al. DeepReID: Deep Filter Pairing Neural Network for Person Re-identification. CVPR 2014.</span>
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<span class="sd"> URL: `<http://www.ee.cuhk.edu.hk/~xgwang/CUHK_identification.html#!>`_</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: 1360.</span>
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<span class="sd"> - images: 13164.</span>
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<span class="sd"> - cameras: 6.</span>
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<span class="sd"> - splits: 20 (classic).</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">'cuhk03'</span>
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<span class="n">dataset_url</span> <span class="o">=</span> <span class="kc">None</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="n">split_id</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">cuhk03_labeled</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">cuhk03_classic_split</span><span class="o">=</span><span class="kc">False</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">data_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">'cuhk03_release'</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">raw_mat_path</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">data_dir</span><span class="p">,</span> <span class="s1">'cuhk-03.mat'</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">imgs_detected_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">'images_detected'</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">imgs_labeled_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">'images_labeled'</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">split_classic_det_json_path</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">'splits_classic_detected.json'</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">split_classic_lab_json_path</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">'splits_classic_labeled.json'</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">split_new_det_json_path</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">'splits_new_detected.json'</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">split_new_lab_json_path</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">'splits_new_labeled.json'</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">split_new_det_mat_path</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">'cuhk03_new_protocol_config_detected.mat'</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">split_new_lab_mat_path</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">'cuhk03_new_protocol_config_labeled.mat'</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">data_dir</span><span class="p">,</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">raw_mat_path</span><span class="p">,</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">split_new_det_mat_path</span><span class="p">,</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">split_new_lab_mat_path</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="bp">self</span><span class="o">.</span><span class="n">preprocess_split</span><span class="p">()</span>
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<span class="k">if</span> <span class="n">cuhk03_labeled</span><span class="p">:</span>
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<span class="n">split_path</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">split_classic_lab_json_path</span> <span class="k">if</span> <span class="n">cuhk03_classic_split</span> <span class="k">else</span> <span class="bp">self</span><span class="o">.</span><span class="n">split_new_lab_json_path</span>
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<span class="k">else</span><span class="p">:</span>
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<span class="n">split_path</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">split_classic_det_json_path</span> <span class="k">if</span> <span class="n">cuhk03_classic_split</span> <span class="k">else</span> <span class="bp">self</span><span class="o">.</span><span class="n">split_new_det_json_path</span>
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<span class="n">splits</span> <span class="o">=</span> <span class="n">read_json</span><span class="p">(</span><span class="n">split_path</span><span class="p">)</span>
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<span class="k">assert</span> <span class="n">split_id</span> <span class="o"><</span> <span class="nb">len</span><span class="p">(</span><span class="n">splits</span><span class="p">),</span> <span class="s1">'Condition split_id (</span><span class="si">{}</span><span class="s1">) < len(splits) (</span><span class="si">{}</span><span class="s1">) is false'</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">split_id</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="n">splits</span><span class="p">))</span>
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<span class="n">split</span> <span class="o">=</span> <span class="n">splits</span><span class="p">[</span><span class="n">split_id</span><span class="p">]</span>
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<span class="n">train</span> <span class="o">=</span> <span class="n">split</span><span class="p">[</span><span class="s1">'train'</span><span class="p">]</span>
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<span class="n">query</span> <span class="o">=</span> <span class="n">split</span><span class="p">[</span><span class="s1">'query'</span><span class="p">]</span>
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<span class="n">gallery</span> <span class="o">=</span> <span class="n">split</span><span class="p">[</span><span class="s1">'gallery'</span><span class="p">]</span>
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<span class="nb">super</span><span class="p">(</span><span class="n">CUHK03</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">preprocess_split</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
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<span class="c1"># This function is a bit complex and ugly, what it does is</span>
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<span class="c1"># 1. extract data from cuhk-03.mat and save as png images</span>
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<span class="c1"># 2. create 20 classic splits (Li et al. CVPR'14)</span>
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<span class="c1"># 3. create new split (Zhong et al. CVPR'17)</span>
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<span class="k">if</span> <span class="n">osp</span><span class="o">.</span><span class="n">exists</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">imgs_labeled_dir</span><span class="p">)</span> \
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<span class="ow">and</span> <span class="n">osp</span><span class="o">.</span><span class="n">exists</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">imgs_detected_dir</span><span class="p">)</span> \
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<span class="ow">and</span> <span class="n">osp</span><span class="o">.</span><span class="n">exists</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">split_classic_det_json_path</span><span class="p">)</span> \
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<span class="ow">and</span> <span class="n">osp</span><span class="o">.</span><span class="n">exists</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">split_classic_lab_json_path</span><span class="p">)</span> \
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<span class="ow">and</span> <span class="n">osp</span><span class="o">.</span><span class="n">exists</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">split_new_det_json_path</span><span class="p">)</span> \
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<span class="ow">and</span> <span class="n">osp</span><span class="o">.</span><span class="n">exists</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">split_new_lab_json_path</span><span class="p">):</span>
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<span class="k">return</span>
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<span class="kn">import</span> <span class="nn">h5py</span>
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<span class="kn">from</span> <span class="nn">scipy.misc</span> <span class="k">import</span> <span class="n">imsave</span>
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<span class="kn">from</span> <span class="nn">scipy.io</span> <span class="k">import</span> <span class="n">loadmat</span>
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|
<span class="n">mkdir_if_missing</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">imgs_detected_dir</span><span class="p">)</span>
|
|
<span class="n">mkdir_if_missing</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">imgs_labeled_dir</span><span class="p">)</span>
|
|
|
|
<span class="nb">print</span><span class="p">(</span><span class="s1">'Extract image data from "</span><span class="si">{}</span><span class="s1">" and save as png'</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">raw_mat_path</span><span class="p">))</span>
|
|
<span class="n">mat</span> <span class="o">=</span> <span class="n">h5py</span><span class="o">.</span><span class="n">File</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">raw_mat_path</span><span class="p">,</span> <span class="s1">'r'</span><span class="p">)</span>
|
|
|
|
<span class="k">def</span> <span class="nf">_deref</span><span class="p">(</span><span class="n">ref</span><span class="p">):</span>
|
|
<span class="k">return</span> <span class="n">mat</span><span class="p">[</span><span class="n">ref</span><span class="p">][:]</span><span class="o">.</span><span class="n">T</span>
|
|
|
|
<span class="k">def</span> <span class="nf">_process_images</span><span class="p">(</span><span class="n">img_refs</span><span class="p">,</span> <span class="n">campid</span><span class="p">,</span> <span class="n">pid</span><span class="p">,</span> <span class="n">save_dir</span><span class="p">):</span>
|
|
<span class="n">img_paths</span> <span class="o">=</span> <span class="p">[]</span> <span class="c1"># Note: some persons only have images for one view</span>
|
|
<span class="k">for</span> <span class="n">imgid</span><span class="p">,</span> <span class="n">img_ref</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="n">img_refs</span><span class="p">):</span>
|
|
<span class="n">img</span> <span class="o">=</span> <span class="n">_deref</span><span class="p">(</span><span class="n">img_ref</span><span class="p">)</span>
|
|
<span class="k">if</span> <span class="n">img</span><span class="o">.</span><span class="n">size</span><span class="o">==</span><span class="mi">0</span> <span class="ow">or</span> <span class="n">img</span><span class="o">.</span><span class="n">ndim</span><span class="o"><</span><span class="mi">3</span><span class="p">:</span>
|
|
<span class="k">continue</span> <span class="c1"># skip empty cell</span>
|
|
<span class="c1"># images are saved with the following format, index-1 (ensure uniqueness)</span>
|
|
<span class="c1"># campid: index of camera pair (1-5)</span>
|
|
<span class="c1"># pid: index of person in 'campid'-th camera pair</span>
|
|
<span class="c1"># viewid: index of view, {1, 2}</span>
|
|
<span class="c1"># imgid: index of image, (1-10)</span>
|
|
<span class="n">viewid</span> <span class="o">=</span> <span class="mi">1</span> <span class="k">if</span> <span class="n">imgid</span><span class="o"><</span><span class="mi">5</span> <span class="k">else</span> <span class="mi">2</span>
|
|
<span class="n">img_name</span> <span class="o">=</span> <span class="s1">'</span><span class="si">{:01d}</span><span class="s1">_</span><span class="si">{:03d}</span><span class="s1">_</span><span class="si">{:01d}</span><span class="s1">_</span><span class="si">{:02d}</span><span class="s1">.png'</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">campid</span><span class="o">+</span><span class="mi">1</span><span class="p">,</span> <span class="n">pid</span><span class="o">+</span><span class="mi">1</span><span class="p">,</span> <span class="n">viewid</span><span class="p">,</span> <span class="n">imgid</span><span class="o">+</span><span class="mi">1</span><span class="p">)</span>
|
|
<span class="n">img_path</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="n">save_dir</span><span class="p">,</span> <span class="n">img_name</span><span class="p">)</span>
|
|
<span class="k">if</span> <span class="ow">not</span> <span class="n">osp</span><span class="o">.</span><span class="n">isfile</span><span class="p">(</span><span class="n">img_path</span><span class="p">):</span>
|
|
<span class="n">imsave</span><span class="p">(</span><span class="n">img_path</span><span class="p">,</span> <span class="n">img</span><span class="p">)</span>
|
|
<span class="n">img_paths</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="k">return</span> <span class="n">img_paths</span>
|
|
|
|
<span class="k">def</span> <span class="nf">_extract_img</span><span class="p">(</span><span class="n">image_type</span><span class="p">):</span>
|
|
<span class="nb">print</span><span class="p">(</span><span class="s1">'Processing </span><span class="si">{}</span><span class="s1"> images ...'</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">image_type</span><span class="p">))</span>
|
|
<span class="n">meta_data</span> <span class="o">=</span> <span class="p">[]</span>
|
|
<span class="n">imgs_dir</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">imgs_detected_dir</span> <span class="k">if</span> <span class="n">image_type</span><span class="o">==</span><span class="s1">'detected'</span> <span class="k">else</span> <span class="bp">self</span><span class="o">.</span><span class="n">imgs_labeled_dir</span>
|
|
<span class="k">for</span> <span class="n">campid</span><span class="p">,</span> <span class="n">camp_ref</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="n">mat</span><span class="p">[</span><span class="n">image_type</span><span class="p">][</span><span class="mi">0</span><span class="p">]):</span>
|
|
<span class="n">camp</span> <span class="o">=</span> <span class="n">_deref</span><span class="p">(</span><span class="n">camp_ref</span><span class="p">)</span>
|
|
<span class="n">num_pids</span> <span class="o">=</span> <span class="n">camp</span><span class="o">.</span><span class="n">shape</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
|
|
<span class="k">for</span> <span class="n">pid</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">num_pids</span><span class="p">):</span>
|
|
<span class="n">img_paths</span> <span class="o">=</span> <span class="n">_process_images</span><span class="p">(</span><span class="n">camp</span><span class="p">[</span><span class="n">pid</span><span class="p">,:],</span> <span class="n">campid</span><span class="p">,</span> <span class="n">pid</span><span class="p">,</span> <span class="n">imgs_dir</span><span class="p">)</span>
|
|
<span class="k">assert</span> <span class="nb">len</span><span class="p">(</span><span class="n">img_paths</span><span class="p">)</span> <span class="o">></span> <span class="mi">0</span><span class="p">,</span> <span class="s1">'campid</span><span class="si">{}</span><span class="s1">-pid</span><span class="si">{}</span><span class="s1"> has no images'</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">campid</span><span class="p">,</span> <span class="n">pid</span><span class="p">)</span>
|
|
<span class="n">meta_data</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">campid</span><span class="o">+</span><span class="mi">1</span><span class="p">,</span> <span class="n">pid</span><span class="o">+</span><span class="mi">1</span><span class="p">,</span> <span class="n">img_paths</span><span class="p">))</span>
|
|
<span class="nb">print</span><span class="p">(</span><span class="s1">'- done camera pair </span><span class="si">{}</span><span class="s1"> with </span><span class="si">{}</span><span class="s1"> identities'</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">campid</span><span class="o">+</span><span class="mi">1</span><span class="p">,</span> <span class="n">num_pids</span><span class="p">))</span>
|
|
<span class="k">return</span> <span class="n">meta_data</span>
|
|
|
|
<span class="n">meta_detected</span> <span class="o">=</span> <span class="n">_extract_img</span><span class="p">(</span><span class="s1">'detected'</span><span class="p">)</span>
|
|
<span class="n">meta_labeled</span> <span class="o">=</span> <span class="n">_extract_img</span><span class="p">(</span><span class="s1">'labeled'</span><span class="p">)</span>
|
|
|
|
<span class="k">def</span> <span class="nf">_extract_classic_split</span><span class="p">(</span><span class="n">meta_data</span><span class="p">,</span> <span class="n">test_split</span><span class="p">):</span>
|
|
<span class="n">train</span><span class="p">,</span> <span class="n">test</span> <span class="o">=</span> <span class="p">[],</span> <span class="p">[]</span>
|
|
<span class="n">num_train_pids</span><span class="p">,</span> <span class="n">num_test_pids</span> <span class="o">=</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span>
|
|
<span class="n">num_train_imgs</span><span class="p">,</span> <span class="n">num_test_imgs</span> <span class="o">=</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span>
|
|
<span class="k">for</span> <span class="n">i</span><span class="p">,</span> <span class="p">(</span><span class="n">campid</span><span class="p">,</span> <span class="n">pid</span><span class="p">,</span> <span class="n">img_paths</span><span class="p">)</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="n">meta_data</span><span class="p">):</span>
|
|
|
|
<span class="k">if</span> <span class="p">[</span><span class="n">campid</span><span class="p">,</span> <span class="n">pid</span><span class="p">]</span> <span class="ow">in</span> <span class="n">test_split</span><span class="p">:</span>
|
|
<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>
|
|
<span class="n">camid</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">osp</span><span class="o">.</span><span class="n">basename</span><span class="p">(</span><span class="n">img_path</span><span class="p">)</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">'_'</span><span class="p">)[</span><span class="mi">2</span><span class="p">])</span> <span class="o">-</span> <span class="mi">1</span> <span class="c1"># make it 0-based</span>
|
|
<span class="n">test</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">num_test_pids</span><span class="p">,</span> <span class="n">camid</span><span class="p">))</span>
|
|
<span class="n">num_test_pids</span> <span class="o">+=</span> <span class="mi">1</span>
|
|
<span class="n">num_test_imgs</span> <span class="o">+=</span> <span class="nb">len</span><span class="p">(</span><span class="n">img_paths</span><span class="p">)</span>
|
|
<span class="k">else</span><span class="p">:</span>
|
|
<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>
|
|
<span class="n">camid</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">osp</span><span class="o">.</span><span class="n">basename</span><span class="p">(</span><span class="n">img_path</span><span class="p">)</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">'_'</span><span class="p">)[</span><span class="mi">2</span><span class="p">])</span> <span class="o">-</span> <span class="mi">1</span> <span class="c1"># make it 0-based</span>
|
|
<span class="n">train</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">num_train_pids</span><span class="p">,</span> <span class="n">camid</span><span class="p">))</span>
|
|
<span class="n">num_train_pids</span> <span class="o">+=</span> <span class="mi">1</span>
|
|
<span class="n">num_train_imgs</span> <span class="o">+=</span> <span class="nb">len</span><span class="p">(</span><span class="n">img_paths</span><span class="p">)</span>
|
|
<span class="k">return</span> <span class="n">train</span><span class="p">,</span> <span class="n">num_train_pids</span><span class="p">,</span> <span class="n">num_train_imgs</span><span class="p">,</span> <span class="n">test</span><span class="p">,</span> <span class="n">num_test_pids</span><span class="p">,</span> <span class="n">num_test_imgs</span>
|
|
|
|
<span class="nb">print</span><span class="p">(</span><span class="s1">'Creating classic splits (# = 20) ...'</span><span class="p">)</span>
|
|
<span class="n">splits_classic_det</span><span class="p">,</span> <span class="n">splits_classic_lab</span> <span class="o">=</span> <span class="p">[],</span> <span class="p">[]</span>
|
|
<span class="k">for</span> <span class="n">split_ref</span> <span class="ow">in</span> <span class="n">mat</span><span class="p">[</span><span class="s1">'testsets'</span><span class="p">][</span><span class="mi">0</span><span class="p">]:</span>
|
|
<span class="n">test_split</span> <span class="o">=</span> <span class="n">_deref</span><span class="p">(</span><span class="n">split_ref</span><span class="p">)</span><span class="o">.</span><span class="n">tolist</span><span class="p">()</span>
|
|
|
|
<span class="c1"># create split for detected images</span>
|
|
<span class="n">train</span><span class="p">,</span> <span class="n">num_train_pids</span><span class="p">,</span> <span class="n">num_train_imgs</span><span class="p">,</span> <span class="n">test</span><span class="p">,</span> <span class="n">num_test_pids</span><span class="p">,</span> <span class="n">num_test_imgs</span> <span class="o">=</span> \
|
|
<span class="n">_extract_classic_split</span><span class="p">(</span><span class="n">meta_detected</span><span class="p">,</span> <span class="n">test_split</span><span class="p">)</span>
|
|
<span class="n">splits_classic_det</span><span class="o">.</span><span class="n">append</span><span class="p">({</span>
|
|
<span class="s1">'train'</span><span class="p">:</span> <span class="n">train</span><span class="p">,</span>
|
|
<span class="s1">'query'</span><span class="p">:</span> <span class="n">test</span><span class="p">,</span>
|
|
<span class="s1">'gallery'</span><span class="p">:</span> <span class="n">test</span><span class="p">,</span>
|
|
<span class="s1">'num_train_pids'</span><span class="p">:</span> <span class="n">num_train_pids</span><span class="p">,</span>
|
|
<span class="s1">'num_train_imgs'</span><span class="p">:</span> <span class="n">num_train_imgs</span><span class="p">,</span>
|
|
<span class="s1">'num_query_pids'</span><span class="p">:</span> <span class="n">num_test_pids</span><span class="p">,</span>
|
|
<span class="s1">'num_query_imgs'</span><span class="p">:</span> <span class="n">num_test_imgs</span><span class="p">,</span>
|
|
<span class="s1">'num_gallery_pids'</span><span class="p">:</span> <span class="n">num_test_pids</span><span class="p">,</span>
|
|
<span class="s1">'num_gallery_imgs'</span><span class="p">:</span> <span class="n">num_test_imgs</span>
|
|
<span class="p">})</span>
|
|
|
|
<span class="c1"># create split for labeled images</span>
|
|
<span class="n">train</span><span class="p">,</span> <span class="n">num_train_pids</span><span class="p">,</span> <span class="n">num_train_imgs</span><span class="p">,</span> <span class="n">test</span><span class="p">,</span> <span class="n">num_test_pids</span><span class="p">,</span> <span class="n">num_test_imgs</span> <span class="o">=</span> \
|
|
<span class="n">_extract_classic_split</span><span class="p">(</span><span class="n">meta_labeled</span><span class="p">,</span> <span class="n">test_split</span><span class="p">)</span>
|
|
<span class="n">splits_classic_lab</span><span class="o">.</span><span class="n">append</span><span class="p">({</span>
|
|
<span class="s1">'train'</span><span class="p">:</span> <span class="n">train</span><span class="p">,</span>
|
|
<span class="s1">'query'</span><span class="p">:</span> <span class="n">test</span><span class="p">,</span>
|
|
<span class="s1">'gallery'</span><span class="p">:</span> <span class="n">test</span><span class="p">,</span>
|
|
<span class="s1">'num_train_pids'</span><span class="p">:</span> <span class="n">num_train_pids</span><span class="p">,</span>
|
|
<span class="s1">'num_train_imgs'</span><span class="p">:</span> <span class="n">num_train_imgs</span><span class="p">,</span>
|
|
<span class="s1">'num_query_pids'</span><span class="p">:</span> <span class="n">num_test_pids</span><span class="p">,</span>
|
|
<span class="s1">'num_query_imgs'</span><span class="p">:</span> <span class="n">num_test_imgs</span><span class="p">,</span>
|
|
<span class="s1">'num_gallery_pids'</span><span class="p">:</span> <span class="n">num_test_pids</span><span class="p">,</span>
|
|
<span class="s1">'num_gallery_imgs'</span><span class="p">:</span> <span class="n">num_test_imgs</span>
|
|
<span class="p">})</span>
|
|
|
|
<span class="n">write_json</span><span class="p">(</span><span class="n">splits_classic_det</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">split_classic_det_json_path</span><span class="p">)</span>
|
|
<span class="n">write_json</span><span class="p">(</span><span class="n">splits_classic_lab</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">split_classic_lab_json_path</span><span class="p">)</span>
|
|
|
|
<span class="k">def</span> <span class="nf">_extract_set</span><span class="p">(</span><span class="n">filelist</span><span class="p">,</span> <span class="n">pids</span><span class="p">,</span> <span class="n">pid2label</span><span class="p">,</span> <span class="n">idxs</span><span class="p">,</span> <span class="n">img_dir</span><span class="p">,</span> <span class="n">relabel</span><span class="p">):</span>
|
|
<span class="n">tmp_set</span> <span class="o">=</span> <span class="p">[]</span>
|
|
<span class="n">unique_pids</span> <span class="o">=</span> <span class="nb">set</span><span class="p">()</span>
|
|
<span class="k">for</span> <span class="n">idx</span> <span class="ow">in</span> <span class="n">idxs</span><span class="p">:</span>
|
|
<span class="n">img_name</span> <span class="o">=</span> <span class="n">filelist</span><span class="p">[</span><span class="n">idx</span><span class="p">][</span><span class="mi">0</span><span class="p">]</span>
|
|
<span class="n">camid</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">img_name</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">'_'</span><span class="p">)[</span><span class="mi">2</span><span class="p">])</span> <span class="o">-</span> <span class="mi">1</span> <span class="c1"># make it 0-based</span>
|
|
<span class="n">pid</span> <span class="o">=</span> <span class="n">pids</span><span class="p">[</span><span class="n">idx</span><span class="p">]</span>
|
|
<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>
|
|
<span class="n">img_path</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="n">img_dir</span><span class="p">,</span> <span class="n">img_name</span><span class="p">)</span>
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<span class="n">tmp_set</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="nb">int</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="n">unique_pids</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="k">return</span> <span class="n">tmp_set</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="n">unique_pids</span><span class="p">),</span> <span class="nb">len</span><span class="p">(</span><span class="n">idxs</span><span class="p">)</span>
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<span class="k">def</span> <span class="nf">_extract_new_split</span><span class="p">(</span><span class="n">split_dict</span><span class="p">,</span> <span class="n">img_dir</span><span class="p">):</span>
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<span class="n">train_idxs</span> <span class="o">=</span> <span class="n">split_dict</span><span class="p">[</span><span class="s1">'train_idx'</span><span class="p">]</span><span class="o">.</span><span class="n">flatten</span><span class="p">()</span> <span class="o">-</span> <span class="mi">1</span> <span class="c1"># index-0</span>
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<span class="n">pids</span> <span class="o">=</span> <span class="n">split_dict</span><span class="p">[</span><span class="s1">'labels'</span><span class="p">]</span><span class="o">.</span><span class="n">flatten</span><span class="p">()</span>
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<span class="n">train_pids</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">pids</span><span class="p">[</span><span class="n">train_idxs</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">train_pids</span><span class="p">)}</span>
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<span class="n">query_idxs</span> <span class="o">=</span> <span class="n">split_dict</span><span class="p">[</span><span class="s1">'query_idx'</span><span class="p">]</span><span class="o">.</span><span class="n">flatten</span><span class="p">()</span> <span class="o">-</span> <span class="mi">1</span>
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<span class="n">gallery_idxs</span> <span class="o">=</span> <span class="n">split_dict</span><span class="p">[</span><span class="s1">'gallery_idx'</span><span class="p">]</span><span class="o">.</span><span class="n">flatten</span><span class="p">()</span> <span class="o">-</span> <span class="mi">1</span>
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<span class="n">filelist</span> <span class="o">=</span> <span class="n">split_dict</span><span class="p">[</span><span class="s1">'filelist'</span><span class="p">]</span><span class="o">.</span><span class="n">flatten</span><span class="p">()</span>
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<span class="n">train_info</span> <span class="o">=</span> <span class="n">_extract_set</span><span class="p">(</span><span class="n">filelist</span><span class="p">,</span> <span class="n">pids</span><span class="p">,</span> <span class="n">pid2label</span><span class="p">,</span> <span class="n">train_idxs</span><span class="p">,</span> <span class="n">img_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_info</span> <span class="o">=</span> <span class="n">_extract_set</span><span class="p">(</span><span class="n">filelist</span><span class="p">,</span> <span class="n">pids</span><span class="p">,</span> <span class="n">pid2label</span><span class="p">,</span> <span class="n">query_idxs</span><span class="p">,</span> <span class="n">img_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_info</span> <span class="o">=</span> <span class="n">_extract_set</span><span class="p">(</span><span class="n">filelist</span><span class="p">,</span> <span class="n">pids</span><span class="p">,</span> <span class="n">pid2label</span><span class="p">,</span> <span class="n">gallery_idxs</span><span class="p">,</span> <span class="n">img_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="k">return</span> <span class="n">train_info</span><span class="p">,</span> <span class="n">query_info</span><span class="p">,</span> <span class="n">gallery_info</span>
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<span class="nb">print</span><span class="p">(</span><span class="s1">'Creating new split for detected images (767/700) ...'</span><span class="p">)</span>
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<span class="n">train_info</span><span class="p">,</span> <span class="n">query_info</span><span class="p">,</span> <span class="n">gallery_info</span> <span class="o">=</span> <span class="n">_extract_new_split</span><span class="p">(</span>
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<span class="n">loadmat</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">split_new_det_mat_path</span><span class="p">),</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">imgs_detected_dir</span>
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<span class="p">)</span>
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<span class="n">split</span> <span class="o">=</span> <span class="p">[{</span>
|
|
<span class="s1">'train'</span><span class="p">:</span> <span class="n">train_info</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span>
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<span class="s1">'query'</span><span class="p">:</span> <span class="n">query_info</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span>
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<span class="s1">'gallery'</span><span class="p">:</span> <span class="n">gallery_info</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span>
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<span class="s1">'num_train_pids'</span><span class="p">:</span> <span class="n">train_info</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span>
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<span class="s1">'num_train_imgs'</span><span class="p">:</span> <span class="n">train_info</span><span class="p">[</span><span class="mi">2</span><span class="p">],</span>
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<span class="s1">'num_query_pids'</span><span class="p">:</span> <span class="n">query_info</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span>
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<span class="s1">'num_query_imgs'</span><span class="p">:</span> <span class="n">query_info</span><span class="p">[</span><span class="mi">2</span><span class="p">],</span>
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<span class="s1">'num_gallery_pids'</span><span class="p">:</span> <span class="n">gallery_info</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span>
|
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<span class="s1">'num_gallery_imgs'</span><span class="p">:</span> <span class="n">gallery_info</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span>
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<span class="p">}]</span>
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<span class="n">write_json</span><span class="p">(</span><span class="n">split</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">split_new_det_json_path</span><span class="p">)</span>
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<span class="nb">print</span><span class="p">(</span><span class="s1">'Creating new split for labeled images (767/700) ...'</span><span class="p">)</span>
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<span class="n">train_info</span><span class="p">,</span> <span class="n">query_info</span><span class="p">,</span> <span class="n">gallery_info</span> <span class="o">=</span> <span class="n">_extract_new_split</span><span class="p">(</span>
|
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<span class="n">loadmat</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">split_new_lab_mat_path</span><span class="p">),</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">imgs_labeled_dir</span>
|
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<span class="p">)</span>
|
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<span class="n">split</span> <span class="o">=</span> <span class="p">[{</span>
|
|
<span class="s1">'train'</span><span class="p">:</span> <span class="n">train_info</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span>
|
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<span class="s1">'query'</span><span class="p">:</span> <span class="n">query_info</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span>
|
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<span class="s1">'gallery'</span><span class="p">:</span> <span class="n">gallery_info</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span>
|
|
<span class="s1">'num_train_pids'</span><span class="p">:</span> <span class="n">train_info</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span>
|
|
<span class="s1">'num_train_imgs'</span><span class="p">:</span> <span class="n">train_info</span><span class="p">[</span><span class="mi">2</span><span class="p">],</span>
|
|
<span class="s1">'num_query_pids'</span><span class="p">:</span> <span class="n">query_info</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span>
|
|
<span class="s1">'num_query_imgs'</span><span class="p">:</span> <span class="n">query_info</span><span class="p">[</span><span class="mi">2</span><span class="p">],</span>
|
|
<span class="s1">'num_gallery_pids'</span><span class="p">:</span> <span class="n">gallery_info</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span>
|
|
<span class="s1">'num_gallery_imgs'</span><span class="p">:</span> <span class="n">gallery_info</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span>
|
|
<span class="p">}]</span>
|
|
<span class="n">write_json</span><span class="p">(</span><span class="n">split</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">split_new_lab_json_path</span><span class="p">)</span></div>
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</pre></div>
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