An algorithm to find area and area based feature of image objects and its application in image matching

One of the important issues in image feature is the area of objects in the image. In this paper we propose an area finding algorithm to measure the area of an image object. This method finds the area by polygonal approximation of image objects. A sequential fine-tuning of this polygon is used to estimate the actual area from polygon area. This area modification sequence is used as a topological description of an image object and used as feature in image matching.