1. A method for selecting a seam between two overlapping images of an area of interest and for combining the two overlapping images into one image, the images defining an overlapping region, the method including: performing a generating procedure for generating a difference value associated with each portion of the overlapping region, wherein the difference value associated with a portion is derived from the difference between at least one property of the portion in the two images; and performing a selecting procedure for selecting, through the overlapping region, a path between two points located at the edge of the overlapping region based on the sum of the difference values of the portions along the path, wherein the path is the seam; performing a combining procedure including combining and blending the images along the seam, wherein the same difference values associated with the portions of the overlapping region are used for selecting the path and for deciding whether a portion is to be blended.