ass="n">ax</span><span class="o">.</span><span class="n">imshow</span><span class="p">(</span><span class="n">_CVG_BG</span><span class="p">,</span> <span class="n">origin</span> <span class="o">=</span> <span class="s1">&#39;upper&#39;</span><span class="p">,</span> <span class="n">extent</span> <span class="o">=</span> <span class="n">axis_</span><span class="p">)</span>
        <span class="k">elif</span> <span class="p">(</span><span class="n">axtype</span> <span class="o">!=</span> <span class="s1">&#3