Methods and apparatus for filtering images using fuzzy logic

A device for filtering a video signal having a luminance component and a chrominance component, the device comprising:

• luminance processing means for processing the luminance component of the video signal to produce a fuzzy logic signal indicative of whether an image defined by the video signal is moving, and a luminance output signal;
• and
• a chrominance processing circuit that processes the chrominance component of the video signal according to the fuzzy logic signal to produce a chrominance output signal.

A device for filtering a video signal having a luminance component and a chrominance component, the device comprising:

• a luminance processing circuit having an input that receives the luminance component of the video signal, a first output that provides a luminance output signal, and a second output that provides a fuzzy logic signal indicative of whether an image defined by the video signal is moving;
• and
• a chrominance processing circuit having a first input that receives the chrominance component of the video signal, a second input coupled to the second output of the luminance processing circuit and an output that provides a chrominance output signal according to the fuzzy logic signal.

A method for filtering a video signal having a luminance component and a chrominance component, the method comprising the steps of:

• processing the luminance component of the video signal through luminance fuzzy logic circuitry to produce a luminance output signal, and a fuzzy logic signal indicative of whether an image defined by the video signal is moving;
• and
• processing the chrominance component of the video signal through chrominance fuzzy logic circuitry to produce a chrominance output signal according to the fuzzy logic signal.