title: How to rotate an Image in Matlab 90 degrees
body: <p>I have an image that I'd like to rotate by 90 degrees right, how can I do it without using any toolbox. </p>
  
  <p>I've written a function that puts a picture on a sub-picture after user gives 4 points. I believe there has to be an easier way.</p>
  
  <p>Thanks in advance!</p>
  
  <p><a href="https://i.stack.imgur.com/mVwYt.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/mVwYt.png" alt="enter image description here"></a></p>