title: how to merge Images and impose on each other
body: <p>Suppose I'm uploading two or more than two pics in some <code>Framelayout</code>. Hereby I'm uploading three pics with a same person in three different position in all those three pictures. Then what image processing libraries in Android or java or Native's are available to do something as shown in the pic.</p>
  
  <p>I would like to impose multiple pictures on each other. </p>
  
  <p>Something like these:-</p>
  
  <p><img src="https://i.stack.imgur.com/1oVmE.jpg" alt="Picture with layering facility"></p>
  
  <p>One idea is to :</p>
  
  <ol>
  <li>Do some layering in all those pictures and find mismatching areas in the pics and merge them.</li>
  </ol>
  
  <p><em>How one can merge multiple picture with other? By checking the di-similarity and merge with each other?</em></p>
  
  <p><em>Are there any Third party Api's or some Photoshop service which can help me in doing these kinda image processing?</em></p>