DIGITAL SIGNAL FILTER FOR VIDEO IMAGE, VIDEO FILTER AND METHOD FOR FILTERING VIDEO SIGNAL FOR VIDEO IMAGE

摘要

PURPOSE: To provide a filter architecture optimizable and easily executable by using fuzzy logic. ;CONSTITUTION: This filter is provided with a filter circuit 2 for separating high band components and low band components from input signals for video images, a brilliance estimating circuit 6 for obtaining the mean brilliance value of respective plural sections for which the video images are divided, first and second video characteristic adjustment circuits 4 and 5 for changing the high band components and the low band components in response to the mean brilliance value and a totaling circuit 36 for combining the changed high band components and low band components and generating filtered video signals.;COPYRIGHT: (C)1995,JPO