how to return only filter passed images from the list
<p>Suppose we have a function <code>processed_filter_description(a, b, c)</code> which takes 3 parameters.</p>

<ul>
<li>a = user input description</li>
<li>b = file extensions for potential images (jpg, gif), </li>
<li>c = the list of all the images (<code>['image1.jpg', 'image1.gif', 'image2.jpg', 'image2.gif', 'image3.jpg', 'image3.gif']</code>)</li>
</ul>

<p>The function checks the description variable (a), and checks the matching extension or image type variable (b), and return the matching criteria from the images list (c).</p>
