title: How to interpolate between data points?
body: <p>I am currently developing a piece of software using opencv and qt that plots data points. I need to be able fill in an image from incomplete data. I want to interpolate between the points I have. Can anyone recommend a library or function that could help me. I thought maybe the opencv reMap method but I can't seem to get that to work.</p>
  
  <p>The data is a 2-d matrix of intensity values. I want to create an image of some sort. Its a school project.</p>