title: How to enhance the colors and contrast of an image
body: <p>I need to process the first "Original" image to get something similar to the second "Enhanced" one. I applied some naif calculation and the new image has more contrast and more strong colors but in the higher color regions a color hole appears. I have no idea about image processing, it would be great if you can suggest me which concepts and/or algorithms I could apply to get the result without this problem.</p>
  
  <p><img src="https://i.imgur.com/8XkxR.jpg" alt="Original"></p>
  
  <p><img src="https://i.imgur.com/cuSbC.jpg" alt="Enhanced"></p>