ass="mi">1</span><span class="p">]</span><span class="o">/</span><span class="n">xyzw2</span><span class="p">[</span><span class="n">i</span><span class="p">,</span><span class="mi">1</span><span class="p">]</span>

    
    <span class="n">xyz</span><span class="p">,</span> <span class="n">xyzw</span> <span class="o">=</span> <span class="n">spd_to_xyz</span><span class="p">(</span><span class="n">C</span><span class="p">,</span> <span class="n">cieobs</span> <span class="o">=</span> <span class="n">cieobs