NOISE DETECTING DEVICE AND NOISE DETECTING METHOD AND SIGNAL PROCESSOR AND SIGNAL PROCESSING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a signal processor and a signal processing method for properly correcting a video signal without deteriorating the original quality of a video signal even when details continue finely. SOLUTION: Any mosquito noise or ringing is detected by a ringing detecting device 2, and when any mosquito noise or ringing is generated, a video signal smoothed by a horizontal/vertical high-pass filter 22 is outputted, and when no mosquito noise or ringing is generated, the video signal is outputted as it is.