title: Opencv4Android,stitching two images
body: <p>I have to stitch two images and I use <code>openCV4Android</code>.I read docs and some threads in about stitching images,for example: <a href="http://ramsrigoutham.com/2012/11/22/panorama-image-stitching-in-opencv/" rel="nofollow noreferrer">Panorama – Image Stitching in OpenCV</a> , <a href="http://rkdasari.com/2013/11/09/homography-between-images-using-opencv-for-android/" rel="nofollow noreferrer">Homography between images using OpenCV for Android</a> , <a href="https://stackoverflow.com/questions/24563173/stitch-multiple-images-using-opencv-python">Stitch multiple images</a> , <a href="https://stackoverflow.com/questions/15544158/error-matching-with-orb-in-android/15546532#15546532">Error matching with ORB in Android</a> and others.At first,it seems easy.But the result is strange!Below,you can see two images that I used for test and result:</p>
  
  <p><strong>Here is "image1":</strong></p>
  
  <p><img src="https://i.stack.imgur.com/Nsclz.jpg" alt="enter image description here"></p>
  
  <p><strong>This is "image2":</strong></p>
  
  <p><img src="https://i.stack.imgur.com/LwVfb.jpg" alt="enter image description here"></p>
  
  <p><strong>You can see drawed features:</strong></p>
  
  <p><img src="https://i.stack.imgur.com/ONG06.jpg" alt="enter image description here"></p>
  
  <p><strong>And this is result of warping <code>image1</code>:</strong></p>
  
  <p><img src="https://i.stack.imgur.com/7frL7.jpg" alt="enter image description here"></p>
  
  <p>What I did wrong?Or it may be I did not understand good?</p>