an><span class="p">[</span><span class="s1">&#39;noise&#39;</span><span class="p">],</span> <span class="n">scaling</span> <span class="o">=</span> <span class="n">naka</span><span class="p">[</span><span class="s1">&#39;scaling&#39;</span><span class="p">],</span> <span class="n">forward</span> <span class="o">=</span> <span class="kc">False</span><span class="p">)</span>

            <span class="c1"># apply inverse von-kries cat with D = 1:</span>
            <span class="n">rgb</span> <span class="o">=<