An automatic zoom apparatus and method for playing dynamic images. The
automatic zoom apparatus provides more dynamic images to a user by
detecting a dynamic change of image signals to zoom and display a
predetermined area where the dynamic change is detected. To this end, the
automatic zoom apparatus for playing the dynamic images comprises a
motion detector for, when a zoom function is requested to zoom
predetermined image signals, detecting a motion based on a color change
between frames extracted from the predetermined image signals. Also
included is a motion area designator for designating a predetermined area
including objects of the motion detected by the motion detector, as a
motion area, and a zoom controller for performing a zoom function for
zooming an image of the image signals of the motion area designated by
the motion area designator. Thereby, the user can enjoy a more dynamic
image such that television watching is not as monotonous.