A method of detecting a specific object in an image signal both
efficiently and accurately is disclosed. According to the method, an
object is first detected from an image or frame using a general feature
of the object and in the following image or frame, the object is detected
using an object-dependant feature. Also, when detecting a plurality of
objects or portions of the object, a full color range of the specific
object is determined, and color range sections of the full color range is
used to detect the object.