title: Combine images using openCV in Java (and looking for openCv Java Docs)
body: <p>I would like to simply combine two images with same size side by side into a new one. I found answers in <code>C++</code> but when my translation into java does not work as expected, and my guess is that the <code>Mat.copyTo()</code> in two languages work differently. </p>
  
  <p>I also found exactly same question <a href="https://stackoverflow.com/questions/23593443/opencv-java-multiple-images-side-by-side">here</a> but the answer code does not work.</p>
  
  <p>By the way, is there anywhere I can find <code>openCV</code> documents (v2.4) in Java?</p>
  
  <p>Any ideas? Thanks.</p>