1. A method of performing registration of digitized images, the method comprising: selecting at least two area from each of a first image and a second image; determining separate transformations for the selected areas of the first image based on a comparison of areas within the first and second images; and applying a feathering technique within a predetermined amount of at least two neighboring areas within the selected areas in order to obtain new transformations for the predetermined areas if the transformations for the neighboring areas differ, where the new transformations are based on the separate transformations.