IMPULSE NOISE REDUCING METHOD AND APPARATUS

摘要

delaying an input luminance signal in line unit; determining an impulse noise in accordance with a vertical correlation with one horizontal line delayed line and upper and lower horizontal lines; determining an impulse noise in the one horizontal line delayed line to thereby output a noise detecting signal; generating a correcting signal by averaging the one horizontal line delayed line and the upper and lower horizontal lines; and if the impulse noise is detected, outputting the correcting signal, and if not detected, outputting the one horizontal line delayed line.