Patent ID: 8090213

Claim:
An image processing device for determining an output image signal according to an input image signal, the input image signal comprising a value representing a target pixel, the image processing device comprising: a peaking filter for performing peaking processing on the input image signal to generate a peaking image signal; a selection circuit for selecting a plurality of values representing neighboring pixels from the input image signal and a reference pixel from the peaking image signal, the reference pixel corresponding to the target pixel and the neighboring pixels adjacent to the target pixel; a median filter, coupled to the selection circuit, for generating a filtered image signal according to chrominance values of the neighboring pixels and the reference pixel; and a determining circuit, coupled to the peaking filter and the median filter, for determining the output image signal according to a chrominance value of the target pixel, a chrominance value of the filtered image signal and the chrominance value of the reference pixel.