title: Converting a Vision VNTextObservation to a String
body: <p>I'm looking through the Apple's <a href="https://developer.apple.com/documentation/vision" rel="noreferrer">Vision API documentation</a> and I see a couple of classes that relate to text detection in <code>UIImages</code>:</p>
  
  <p>1) <a href="https://developer.apple.com/documentation/vision/vndetecttextrectanglesrequest" rel="noreferrer"><code>class VNDetectTextRectanglesRequest</code></a></p>
  
  <p>2) <a href="https://developer.apple.com/documentation/vision/vntextobservation" rel="noreferrer"><code>class VNTextObservation</code></a></p>
  
  <p>It looks like they can detect characters, but I don't see a means to do anything with the characters. Once you've got characters detected, how would you go about turning them into something that can be interpreted by <a href="https://developer.apple.com/documentation/foundation/nslinguistictagger" rel="noreferrer"><code>NSLinguisticTagger</code></a>?</p>
  
  <p>Here's a post that is a brief overview of <a href="https://medium.com/compileswift/swift-world-whats-new-in-ios-11-vision-456ba4156bad" rel="noreferrer"><code>Vision</code></a>.</p>
  
  <p>Thank you for reading. </p>