title: Auto enhance UIImageView with no rotation
body: <p>I have been at this for two days now and hopefully, you can help me out. I am trying to auto-enhance an image from UIImageView. The following code is rotating and resizing images SOMETIMES and I'm having a hard time determining when or why. From the lack of posts on the topic, I feel like I must be missing something super simple. Thank you ALL!</p>
  
  <pre><code>// my UIImageView is self.imgOut 
  
  var enhanceImg = CIImage(image: self.imgOut.image!)
  
  let filters = enhanceImg!.autoAdjustmentFilters(options: nil)
  
  for filter: CIFilter in filters {
    filter.setValue(enhanceImg, forKey: kCIInputImageKey)
    enhanceImg = filter.outputImage!
  }
  
  let enhancedImg = UIImage(ciImage: enhanceImg!, scale: self.imgOut.image!.scale, orientation: self.imgOut.image!.imageOrientation)
  self.imgOut.image = enhancedImg
  </code></pre>