span><span class="p">,</span> <span class="mf">1.0</span><span class="p">))</span>
    <span class="p">),</span>
    <span class="c1"># Strengthen or weaken the contrast in each image.</span>
    <span class="n">iaa</span><span class="o">.</span><span class="n">LinearContrast</span><span class="p">((</span><span class="mf">0.75</span><span class="p">,</span> <span class="mf">1.5</span><span class="p">)),</span>
    <span class="c1"># Add gaussian noise.</span>
    <span class="c1"># For 50% of all images, w