title: Reverse engineering image crop and resize
body: <p>I have two images. A is a high resolution image. B is a cropped low resolution version of A.</p>
  
  <p>What I need is a library or set of libraries which could allow me to find the crop+resize information given these two images.</p>
  
  <p>Pseudo code to help explain the scenario is:</p>
  
  <pre><code>Crop cropInfo = findCrop(originalImageA, lowResImageB)
  </code></pre>
  
  <p>A bonus would be if the libraries involved run on the JVM!</p>