Patent ID: 8761537

Claim:
An apparatus for adaptive edge enhancement of a video signal comprising: a transient improvement module configured to generate a first adjusted pixel value based on a window of pixel values for pixels surrounding a pixel-of-interest initially having an input pixel value; an adaptive peaking module configured to generate a second adjusted pixel value based on an adaptive adjustment value, the first adjusted pixel value, and the input pixel value, the adaptive peaking module comprising a gain path configured to apply at least one adaptive gain value to a pixel adjustment to generate the adaptive adjustment value; and a control path configured to generate the at least one adaptive gain value, the control path comprising: a two-dimensional low-pass filter configured to generate a low-pass filtered version of the first adjusted pixel value; at least one two-dimensional high-pass filter configured to amplify an edge in the low-pass filtered version of the first adjusted pixel value in at least a first direction, wherein the at least one adaptive gain value is based on at least one corresponding output of the at least one two-dimensional high-pass filter.