How to change the image background to white?
<p>I have set of images. Images have a simple background. I want to change that background to white using <a href="http://marvinproject.sourceforge.net/" rel="nofollow noreferrer">Marvin Framework</a> and Java.</p>

<p>As I am new to Marvin, it is making me trouble to change the background. I also tried opencv for java but its giving unsatisfied link error.</p>

<p><strong>Image Example:</strong></p>

<p><a href="https://i.stack.imgur.com/m43bg.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/m43bg.jpg" alt="enter image description here"></a></p>