Patent ID: 7379591
Filing Date: 2008-05-27
Classification: G06K

Abstract:
1. A method of extracting a specified image subject which successively implements a plurality of specified image subject extracting algorithms, comprising the steps of: implementing an extracting algorithm of a precedent stage under a predetermined extracting condition to obtain an extraction result; changing an extracting condition of a subsequent stage so as to be adapted to the thus obtained extraction result; and implementing an extracting algorithm of said subsequent stage under the thus changed extracting condition, wherein said precedent stage comprises extracting a shape of regular geometric form of the specified image subject, said subsequent stage comprises detecting a color or hue of said specified image subject, said changed extracting condition is an extracting condition of the color or hue of said specified image subject that is set less strict than an extracting condition of the color or hue of said specified image subject that is ordinarily used for extracting said specified image subject by implementing said extracting algorithm of said subsequent stage, and said specified image subject is extracted by implementing said extracting algorithm of said subsequent stage under said changed extracting condition.