title: How to Reduce the Resolution of an Image in OpenCV?
body: <p>So, I have an image from a digital scanner, its resolution is 26 Megapixel.
  I want to reduce the resolution of the image to 5 Megapixel.</p>
  
  <p>Is it possible to reduce the resolution of an image without damaging the contents?</p>
  
  <p>If yes, how to reduce it in OpenCV implementation?</p>
  
  <p>Any help would be greatly appreciated.
  Thankyou</p>