Video signal processing apparatus

摘要

A video signal processing apparatus is provided that includes a gate pulse generator and a luminance signal processing unit. The gate pulse generator detects a high frequency band in accordance with a luminance signal separated from a composite video signal and outputs a gate pulse signal. The luminance signal processing unit adjusts a contrast with regard to a high frequency band in the luminance signal in accordance with the gate pulse signal received from the gate pulse generator. The high frequency band having a large black/white comparison is detected in the apparatus from the luminance signal, and a contrast processing with regard to the luminance signal is decreased in the detected high frequency band. Thus, the video signal processing apparatus can reduce or eliminate a picture flickering in the radio frequency band.