title: Interpolation warp
body: <p>I use opencv with cpp.</p>
  
  <p>I have <code>std::vector&lt;std::pair&lt;cv::Point2d, cv::Point2d&gt; &gt;</code> wich represent a warp.
  For each point of an image A, i associate a point of an image B. 
  I don't know all association between points of image A and points of image B. The points of image A are on a sparse matrix. These data have also probably epsilon error.
  So I would like interpolate.
  In opencv I don't found a function which do simply an interpolation.
  How do this ?</p>
  
  <p>I found the function <a href="http://docs.opencv.org/2.4/modules/stitching/doc/warpers.html#detail-rotationwarper-warppoint" rel="nofollow">cv::warpPoint</a> but I don't know the <code>cv::Mat</code> Camera intrinsic parameters nor <code>cv::Mat</code> Camera rotation matrix.
  How compute these matrix from my data ?</p>