title: How to detect JPEG's compression value in IOS ?
body: <p>I am trying to calculate image size from total bytes </p>
  
  <blockquote>
    <p>UIImageJPEGRepresentation(image, 0.75)?.count</p>
  </blockquote>
  
  <p>But the Data I get is already compressed. How would i convert UIImage, which is a JPEG, to Data with actual compression value ? </p>