p">,</span> <span class="n">ucstype</span> <span class="o">=</span> <span class="s1">&#39;ucs&#39;</span><span class="p">):</span>
<span class="w">    </span>
<span class="w">    </span><span class="sd">&quot;&quot;&quot;</span>
<span class="sd">    Calculate color difference DE in specific color space.</span>
<span class="sd">    </span>
<span class="sd">    Args:</span>
<span class="sd">        :xyzt: </span>
<span class="sd">            | ndarray with tristimulus values of test data.</span>
<span class="