An apparatus and method for correcting motion of an image, which occurs
due to a shake of a hand or vibration of a system, considering the
correlation between frames are provided for an image processing system,
which performs motion estimation and compression on an input image
signal, thereby increasing compression efficiency. The apparatus includes
at least a frame memory and a motion estimator/corrector. The memory
stores an input image signal as a current frame image. The motion
estimator/corrector estimates a motion of an image within a predetermined
motion estimation range in the current frame image on the basis of a
previous frame image, detects an image area to be compressed from the
current frame image, and provides the detected image area to be
compressed as a current frame image area for normal motion estimation so
that the motion of the input image signal can be corrected.