Align images in opencv

Question

I have images of same scene focused at different distances. I want to align the images such that every feature is in exactly same position in every image. How can i do this

Answer 1

You can use image stitching or feature machting algorithms of openCV.

The main steps of feature matching are :

• Extract features (SURF or SIFT or others...)
• Match the features (FLANN or BruteForce...) and filter the matchings
• Find the geometrical transformation (RANSAC or LMeds...)