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<title>Coverage for cookbook/helper/image_processing.py: 19%</title>
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<span class="text">Coverage for </span><b>cookbook/helper/image_processing.py</b>:
<span class="pc_cov">19%</span>
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<p class="run"><span class="n"><a id="t1" href="#t1">1</a></span><span class="t"><span class="key">import</span> <span class="nam">os</span>&nbsp;</span><span class="r"></span></p>
<p class="run"><span class="n"><a id="t2" href="#t2">2</a></span><span class="t"><span class="key">from</span> <span class="nam">io</span> <span class="key">import</span> <span class="nam">BytesIO</span>&nbsp;</span><span class="r"></span></p>
<p class="pln"><span class="n"><a id="t3" href="#t3">3</a></span><span class="t">&nbsp;</span><span class="r"></span></p>
<p class="run"><span class="n"><a id="t4" href="#t4">4</a></span><span class="t"><span class="key">from</span> <span class="nam">PIL</span> <span class="key">import</span> <span class="nam">Image</span>&nbsp;</span><span class="r"></span></p>
<p class="pln"><span class="n"><a id="t5" href="#t5">5</a></span><span class="t">&nbsp;</span><span class="r"></span></p>
<p class="pln"><span class="n"><a id="t6" href="#t6">6</a></span><span class="t">&nbsp;</span><span class="r"></span></p>
<p class="run"><span class="n"><a id="t7" href="#t7">7</a></span><span class="t"><span class="key">def</span> <span class="nam">rescale_image_jpeg</span><span class="op">(</span><span class="nam">image_object</span><span class="op">,</span> <span class="nam">base_width</span><span class="op">=</span><span class="num">1020</span><span class="op">)</span><span class="op">:</span>&nbsp;</span><span class="r"></span></p>
<p class="mis show_mis"><span class="n"><a id="t8" href="#t8">8</a></span><span class="t"> <span class="nam">img</span> <span class="op">=</span> <span class="nam">Image</span><span class="op">.</span><span class="nam">open</span><span class="op">(</span><span class="nam">image_object</span><span class="op">)</span>&nbsp;</span><span class="r"></span></p>
<p class="mis show_mis"><span class="n"><a id="t9" href="#t9">9</a></span><span class="t"> <span class="nam">icc_profile</span> <span class="op">=</span> <span class="nam">img</span><span class="op">.</span><span class="nam">info</span><span class="op">.</span><span class="nam">get</span><span class="op">(</span><span class="str">'icc_profile'</span><span class="op">)</span> <span class="com"># remember color profile to not mess up colors</span>&nbsp;</span><span class="r"></span></p>
<p class="mis show_mis"><span class="n"><a id="t10" href="#t10">10</a></span><span class="t"> <span class="nam">width_percent</span> <span class="op">=</span> <span class="op">(</span><span class="nam">base_width</span> <span class="op">/</span> <span class="nam">float</span><span class="op">(</span><span class="nam">img</span><span class="op">.</span><span class="nam">size</span><span class="op">[</span><span class="num">0</span><span class="op">]</span><span class="op">)</span><span class="op">)</span>&nbsp;</span><span class="r"></span></p>
<p class="mis show_mis"><span class="n"><a id="t11" href="#t11">11</a></span><span class="t"> <span class="nam">height</span> <span class="op">=</span> <span class="nam">int</span><span class="op">(</span><span class="op">(</span><span class="nam">float</span><span class="op">(</span><span class="nam">img</span><span class="op">.</span><span class="nam">size</span><span class="op">[</span><span class="num">1</span><span class="op">]</span><span class="op">)</span> <span class="op">*</span> <span class="nam">float</span><span class="op">(</span><span class="nam">width_percent</span><span class="op">)</span><span class="op">)</span><span class="op">)</span>&nbsp;</span><span class="r"></span></p>
<p class="pln"><span class="n"><a id="t12" href="#t12">12</a></span><span class="t">&nbsp;</span><span class="r"></span></p>
<p class="mis show_mis"><span class="n"><a id="t13" href="#t13">13</a></span><span class="t"> <span class="nam">img</span> <span class="op">=</span> <span class="nam">img</span><span class="op">.</span><span class="nam">resize</span><span class="op">(</span><span class="op">(</span><span class="nam">base_width</span><span class="op">,</span> <span class="nam">height</span><span class="op">)</span><span class="op">,</span> <span class="nam">Image</span><span class="op">.</span><span class="nam">LANCZOS</span><span class="op">)</span>&nbsp;</span><span class="r"></span></p>
<p class="mis show_mis"><span class="n"><a id="t14" href="#t14">14</a></span><span class="t"> <span class="nam">img_bytes</span> <span class="op">=</span> <span class="nam">BytesIO</span><span class="op">(</span><span class="op">)</span>&nbsp;</span><span class="r"></span></p>
<p class="mis show_mis"><span class="n"><a id="t15" href="#t15">15</a></span><span class="t"> <span class="nam">img</span><span class="op">.</span><span class="nam">save</span><span class="op">(</span><span class="nam">img_bytes</span><span class="op">,</span> <span class="str">'JPEG'</span><span class="op">,</span> <span class="nam">quality</span><span class="op">=</span><span class="num">90</span><span class="op">,</span> <span class="nam">optimize</span><span class="op">=</span><span class="key">True</span><span class="op">,</span> <span class="nam">icc_profile</span><span class="op">=</span><span class="nam">icc_profile</span><span class="op">)</span>&nbsp;</span><span class="r"></span></p>
<p class="pln"><span class="n"><a id="t16" href="#t16">16</a></span><span class="t">&nbsp;</span><span class="r"></span></p>
<p class="mis show_mis"><span class="n"><a id="t17" href="#t17">17</a></span><span class="t"> <span class="key">return</span> <span class="nam">img_bytes</span>&nbsp;</span><span class="r"></span></p>
<p class="pln"><span class="n"><a id="t18" href="#t18">18</a></span><span class="t">&nbsp;</span><span class="r"></span></p>
<p class="pln"><span class="n"><a id="t19" href="#t19">19</a></span><span class="t">&nbsp;</span><span class="r"></span></p>
<p class="run"><span class="n"><a id="t20" href="#t20">20</a></span><span class="t"><span class="key">def</span> <span class="nam">rescale_image_png</span><span class="op">(</span><span class="nam">image_object</span><span class="op">,</span> <span class="nam">base_width</span><span class="op">=</span><span class="num">1020</span><span class="op">)</span><span class="op">:</span>&nbsp;</span><span class="r"></span></p>
<p class="mis show_mis"><span class="n"><a id="t21" href="#t21">21</a></span><span class="t"> <span class="nam">image_object</span> <span class="op">=</span> <span class="nam">Image</span><span class="op">.</span><span class="nam">open</span><span class="op">(</span><span class="nam">image_object</span><span class="op">)</span>&nbsp;</span><span class="r"></span></p>
<p class="mis show_mis"><span class="n"><a id="t22" href="#t22">22</a></span><span class="t"> <span class="nam">wpercent</span> <span class="op">=</span> <span class="op">(</span><span class="nam">base_width</span> <span class="op">/</span> <span class="nam">float</span><span class="op">(</span><span class="nam">image_object</span><span class="op">.</span><span class="nam">size</span><span class="op">[</span><span class="num">0</span><span class="op">]</span><span class="op">)</span><span class="op">)</span>&nbsp;</span><span class="r"></span></p>
<p class="mis show_mis"><span class="n"><a id="t23" href="#t23">23</a></span><span class="t"> <span class="nam">hsize</span> <span class="op">=</span> <span class="nam">int</span><span class="op">(</span><span class="op">(</span><span class="nam">float</span><span class="op">(</span><span class="nam">image_object</span><span class="op">.</span><span class="nam">size</span><span class="op">[</span><span class="num">1</span><span class="op">]</span><span class="op">)</span> <span class="op">*</span> <span class="nam">float</span><span class="op">(</span><span class="nam">wpercent</span><span class="op">)</span><span class="op">)</span><span class="op">)</span>&nbsp;</span><span class="r"></span></p>
<p class="mis show_mis"><span class="n"><a id="t24" href="#t24">24</a></span><span class="t"> <span class="nam">img</span> <span class="op">=</span> <span class="nam">image_object</span><span class="op">.</span><span class="nam">resize</span><span class="op">(</span><span class="op">(</span><span class="nam">base_width</span><span class="op">,</span> <span class="nam">hsize</span><span class="op">)</span><span class="op">,</span> <span class="nam">Image</span><span class="op">.</span><span class="nam">LANCZOS</span><span class="op">)</span>&nbsp;</span><span class="r"></span></p>
<p class="pln"><span class="n"><a id="t25" href="#t25">25</a></span><span class="t">&nbsp;</span><span class="r"></span></p>
<p class="mis show_mis"><span class="n"><a id="t26" href="#t26">26</a></span><span class="t"> <span class="nam">im_io</span> <span class="op">=</span> <span class="nam">BytesIO</span><span class="op">(</span><span class="op">)</span>&nbsp;</span><span class="r"></span></p>
<p class="mis show_mis"><span class="n"><a id="t27" href="#t27">27</a></span><span class="t"> <span class="nam">img</span><span class="op">.</span><span class="nam">save</span><span class="op">(</span><span class="nam">im_io</span><span class="op">,</span> <span class="str">'PNG'</span><span class="op">,</span> <span class="nam">quality</span><span class="op">=</span><span class="num">90</span><span class="op">)</span>&nbsp;</span><span class="r"></span></p>
<p class="mis show_mis"><span class="n"><a id="t28" href="#t28">28</a></span><span class="t"> <span class="key">return</span> <span class="nam">im_io</span>&nbsp;</span><span class="r"></span></p>
<p class="pln"><span class="n"><a id="t29" href="#t29">29</a></span><span class="t">&nbsp;</span><span class="r"></span></p>
<p class="pln"><span class="n"><a id="t30" href="#t30">30</a></span><span class="t">&nbsp;</span><span class="r"></span></p>
<p class="run"><span class="n"><a id="t31" href="#t31">31</a></span><span class="t"><span class="key">def</span> <span class="nam">get_filetype</span><span class="op">(</span><span class="nam">name</span><span class="op">)</span><span class="op">:</span>&nbsp;</span><span class="r"></span></p>
<p class="mis show_mis"><span class="n"><a id="t32" href="#t32">32</a></span><span class="t"> <span class="key">try</span><span class="op">:</span>&nbsp;</span><span class="r"></span></p>
<p class="mis show_mis"><span class="n"><a id="t33" href="#t33">33</a></span><span class="t"> <span class="key">return</span> <span class="nam">os</span><span class="op">.</span><span class="nam">path</span><span class="op">.</span><span class="nam">splitext</span><span class="op">(</span><span class="nam">name</span><span class="op">)</span><span class="op">[</span><span class="num">1</span><span class="op">]</span>&nbsp;</span><span class="r"></span></p>
<p class="mis show_mis"><span class="n"><a id="t34" href="#t34">34</a></span><span class="t"> <span class="key">except</span> <span class="nam">Exception</span><span class="op">:</span>&nbsp;</span><span class="r"></span></p>
<p class="mis show_mis"><span class="n"><a id="t35" href="#t35">35</a></span><span class="t"> <span class="key">return</span> <span class="str">'.jpeg'</span>&nbsp;</span><span class="r"></span></p>
<p class="pln"><span class="n"><a id="t36" href="#t36">36</a></span><span class="t">&nbsp;</span><span class="r"></span></p>
<p class="pln"><span class="n"><a id="t37" href="#t37">37</a></span><span class="t">&nbsp;</span><span class="r"></span></p>
<p class="pln"><span class="n"><a id="t38" href="#t38">38</a></span><span class="t"><span class="com"># TODO this whole file needs proper documentation, refactoring, and testing</span>&nbsp;</span><span class="r"></span></p>
<p class="pln"><span class="n"><a id="t39" href="#t39">39</a></span><span class="t"><span class="com"># TODO also add env variable to define which images sizes should be compressed</span>&nbsp;</span><span class="r"></span></p>
<p class="pln"><span class="n"><a id="t40" href="#t40">40</a></span><span class="t"><span class="com"># filetype argument can not be optional, otherwise this function will treat all images as if they were a jpeg</span>&nbsp;</span><span class="r"></span></p>
<p class="pln"><span class="n"><a id="t41" href="#t41">41</a></span><span class="t"><span class="com"># Because it's no longer optional, no reason to return it</span>&nbsp;</span><span class="r"></span></p>
<p class="run"><span class="n"><a id="t42" href="#t42">42</a></span><span class="t"><span class="key">def</span> <span class="nam">handle_image</span><span class="op">(</span><span class="nam">request</span><span class="op">,</span> <span class="nam">image_object</span><span class="op">,</span> <span class="nam">filetype</span><span class="op">)</span><span class="op">:</span>&nbsp;</span><span class="r"></span></p>
<p class="mis show_mis"><span class="n"><a id="t43" href="#t43">43</a></span><span class="t"> <span class="key">try</span><span class="op">:</span>&nbsp;</span><span class="r"></span></p>
<p class="mis show_mis"><span class="n"><a id="t44" href="#t44">44</a></span><span class="t"> <span class="nam">Image</span><span class="op">.</span><span class="nam">open</span><span class="op">(</span><span class="nam">image_object</span><span class="op">)</span><span class="op">.</span><span class="nam">verify</span><span class="op">(</span><span class="op">)</span>&nbsp;</span><span class="r"></span></p>
<p class="mis show_mis"><span class="n"><a id="t45" href="#t45">45</a></span><span class="t"> <span class="key">except</span> <span class="nam">Exception</span><span class="op">:</span>&nbsp;</span><span class="r"></span></p>
<p class="mis show_mis"><span class="n"><a id="t46" href="#t46">46</a></span><span class="t"> <span class="key">return</span> <span class="key">None</span>&nbsp;</span><span class="r"></span></p>
<p class="pln"><span class="n"><a id="t47" href="#t47">47</a></span><span class="t">&nbsp;</span><span class="r"></span></p>
<p class="mis show_mis"><span class="n"><a id="t48" href="#t48">48</a></span><span class="t"> <span class="key">if</span> <span class="op">(</span><span class="nam">image_object</span><span class="op">.</span><span class="nam">size</span> <span class="op">/</span> <span class="num">1000</span><span class="op">)</span> <span class="op">></span> <span class="num">500</span><span class="op">:</span> <span class="com"># if larger than 500 kb compress</span>&nbsp;</span><span class="r"></span></p>
<p class="mis show_mis"><span class="n"><a id="t49" href="#t49">49</a></span><span class="t"> <span class="key">if</span> <span class="nam">filetype</span> <span class="op">==</span> <span class="str">'.jpeg'</span> <span class="key">or</span> <span class="nam">filetype</span> <span class="op">==</span> <span class="str">'.jpg'</span><span class="op">:</span>&nbsp;</span><span class="r"></span></p>
<p class="mis show_mis"><span class="n"><a id="t50" href="#t50">50</a></span><span class="t"> <span class="key">return</span> <span class="nam">rescale_image_jpeg</span><span class="op">(</span><span class="nam">image_object</span><span class="op">)</span>&nbsp;</span><span class="r"></span></p>
<p class="mis show_mis"><span class="n"><a id="t51" href="#t51">51</a></span><span class="t"> <span class="key">if</span> <span class="nam">filetype</span> <span class="op">==</span> <span class="str">'.png'</span><span class="op">:</span>&nbsp;</span><span class="r"></span></p>
<p class="mis show_mis"><span class="n"><a id="t52" href="#t52">52</a></span><span class="t"> <span class="key">return</span> <span class="nam">rescale_image_png</span><span class="op">(</span><span class="nam">image_object</span><span class="op">)</span>&nbsp;</span><span class="r"></span></p>
<p class="mis show_mis"><span class="n"><a id="t53" href="#t53">53</a></span><span class="t"> <span class="key">return</span> <span class="nam">image_object</span>&nbsp;</span><span class="r"></span></p>
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