title: How to improve image quality in Matlab
body: <p>I'm building an "<em>Optical Character Recognition</em>" system.</p>
  
  <p>so far the system is capable to identify licence plates in good quality without any noise.</p>
  
  <p>what I want in the next level is to be able to identify licence plates in poor quality beacuse of different reasons.</p>
  
  <p>for example, let's look at the next plate:</p>
  
  <p><img src="https://i.stack.imgur.com/JmHKJ.jpg" alt="enter image description here"></p>
  
  <p>as you see, the numbers are not look clearly, because of light returns or something else.</p>
  
  <p>for my question: how can I improve the image quality, so when I move to binary image the numbers will not fade away?</p>
  
  <p>thanks in advance.</p>