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ImageFeatrueExtraction


			
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  <h1>Source code for Images</h1><div class="highlight"><pre>
<span></span><span class="ch">#!/usr/bin/env python3</span>

<span class="kn">import</span> <span class="nn">os</span>
<span class="kn">from</span> <span class="nn">image_features_extraction</span> <span class="k">import</span> <span class="n">Image</span>
<span class="kn">from</span> <span class="nn">image_features_extraction</span> <span class="k">import</span> <span class="n">my_iterator</span>
<span class="kn">from</span> <span class="nn">image_features_extraction</span> <span class="k">import</span> <span class="n">MyException</span>


<div class="viewcode-block" id="Images"><a class="viewcode-back" href="../code.html#Images.Images">[docs]</a><span class="k">class</span> <span class="nc">Images</span><span class="p">(</span><span class="n">my_iterator</span><span class="o">.</span><span class="n">my_iterator</span><span class="p">):</span>
    <span class="sd">&quot;&quot;&quot;</span>
<span class="sd">    This class is used as collection of images which will be loaded from a given folder name</span>
<span class="sd">    &quot;&quot;&quot;</span>
    <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">folder_name</span><span class="p">,</span> <span class="n">image_file_ext</span><span class="o">=</span><span class="p">[</span><span class="s1">&#39;tif&#39;</span><span class="p">,</span> <span class="s1">&#39;tiff&#39;</span><span class="p">]):</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">__iterator_init__</span><span class="p">()</span>  <span class="c1"># initialize my iterator</span>

        <span class="bp">self</span><span class="o">.</span><span class="n">__folder_name</span> <span class="o">=</span> <span class="n">folder_name</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">__image_file_ext</span> <span class="o">=</span> <span class="n">image_file_ext</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">__dicfiles</span> <span class="o">=</span> <span class="p">[]</span>
        <span class="k">try</span><span class="p">:</span>
            <span class="bp">self</span><span class="o">.</span><span class="n">__load</span><span class="p">()</span>
        <span class="k">except</span> <span class="n">MyException</span><span class="o">.</span><span class="n">MyException</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span>
            <span class="nb">print</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">args</span><span class="p">)</span>


    <span class="k">def</span> <span class="nf">__load</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
        <span class="c1"># check that the folder exists</span>
        <span class="k">if</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">isdir</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">__folder_name</span><span class="p">)</span> <span class="o">==</span> <span class="kc">False</span><span class="p">:</span>
            <span class="k">raise</span> <span class="n">MyException</span><span class="o">.</span><span class="n">MyException</span><span class="p">(</span><span class="s2">&quot;Error: folder name does not exist&quot;</span><span class="p">)</span>
        <span class="c1"># store the file names</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">__dicfiles</span> <span class="o">=</span> <span class="p">[]</span>
        <span class="n">files</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">listdir</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">__folder_name</span><span class="p">)</span>
        <span class="k">for</span> <span class="n">f</span> <span class="ow">in</span> <span class="n">files</span><span class="p">:</span>
            <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">__is_imagefile</span><span class="p">(</span><span class="n">f</span><span class="p">):</span>
                <span class="bp">self</span><span class="o">.</span><span class="n">__dicfiles</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">f</span><span class="p">)</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">count_update</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">__dicfiles</span><span class="p">))</span>


    <span class="k">def</span> <span class="nf">__is_imagefile</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span><span class="n">file_name</span><span class="p">):</span>
        <span class="c1"># check the extension of the file</span>
        <span class="n">ext0</span> <span class="o">=</span> <span class="n">file_name</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s2">&quot;.&quot;</span><span class="p">)[</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span>
        <span class="k">for</span> <span class="n">ext1</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">__image_file_ext</span><span class="p">:</span>
            <span class="k">if</span> <span class="n">ext1</span> <span class="o">==</span> <span class="n">ext0</span><span class="p">:</span>
                <span class="k">return</span> <span class="kc">True</span>
        <span class="k">return</span> <span class="kc">False</span>


<div class="viewcode-block" id="Images.item"><a class="viewcode-back" href="../code.html#Images.Images.item">[docs]</a>    <span class="k">def</span> <span class="nf">item</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">i</span><span class="p">):</span>
        <span class="sd">&quot;&quot;&quot;</span>
<span class="sd">        image item</span>
<span class="sd">        &quot;&quot;&quot;</span>
        <span class="k">try</span><span class="p">:</span>
            <span class="k">if</span> <span class="n">i</span> <span class="o">&gt;=</span> <span class="bp">self</span><span class="o">.</span><span class="n">count</span><span class="p">():</span>
                <span class="k">raise</span> <span class="n">MyException</span><span class="o">.</span><span class="n">MyException</span><span class="p">(</span><span class="s2">&quot;error: index out of bound&quot;</span><span class="p">)</span>
            <span class="k">return</span> <span class="n">Image</span><span class="o">.</span><span class="n">Image</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">path</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">__folder_name</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">__dicfiles</span><span class="p">[</span><span class="n">i</span><span class="p">]))</span>
        <span class="k">except</span> <span class="n">MyException</span><span class="o">.</span><span class="n">MyException</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span>
            <span class="nb">print</span><span class="p">(</span><span class="n">e</span><span class="o">.</span><span class="n">args</span><span class="p">)</span></div></div>
</pre></div>

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