PROBLEM TO BE SOLVED: To carry out an efficient false contour effect compensation without adding an influence of an image content by calculating a motion vector in every block of picture elements and shifting a sub-field of the picture element in a direction determined by the motion vector of the block. SOLUTION: An image is divided into blocks of picture elements and a motion vector is calculated regarding every blocks of the picture elements. The sub-field of the picture element is shifted in a direction determined by the motion vector of the block in a re-encoding of the picture element. In this compensation principle, for example, sixth and seventh bit planes are shifted to the right side by one picture element, an eighth bit plane is shifted to the right side by two picture elements and a ninth bit plane is shifted to the right side by three picture elements in a neighborhood area of a horizontal displacement. According to an effect thereof, eyes integrate all emitting periods from sixth to ninth and as a result, a corresponding luminance value 128 is obtained as shown by a lower visual stimulating curve and a dark area is not recognized.
VIDEO IMAGE PROCESSING METHOD FOR COMPENSATING INFLUENCE OF FALSE CONTOUR AND DEVICE THEREFOR