##### Overview

It is the process of taking pixels from one place in the image and locating them in another position in a new image.

To accomplish the mapping process, it might be necessary to do some interpolation for non-integer pixel locations, since there will not always be a one-to-one-pixel correspondence between source and destination images.

We can express the remap for every pixel location (x,y) as:
g(x,y) = f ( h(x,y) )
where g() is the remapped image, f() the source image and h(x,y) is the mapping function that operates on (x,y)

Remapping