Patent ID: 7433084

Claim:
A method for de-screening an image signal, the method comprising the operations of: (a) determining a control signal to select a pair of filters from a bank of filters; (b) selecting a pair of filters from a bank of filters using the determined control signal; (c) filtering the image signal using the selected pair of filters to produce a select pair of filter output signals; (d) generating at least one first control signal based on the image signal using a control module; and (e) dynamically blending the selected pair of filter output signals in accordance with the first control signal to produce a de-screened output signal, using a blend module; wherein operation (c) comprises the operations of: (1) receiving, via a contrast module, a filter output signal from one of the filters having larger filter spans, and producing a contrast signal; (2) receiving, via a screen estimate module, the image signal and producing an estimated frequency signal and a estimated frequency and magnitude signal; and (3) receiving, via a pixel control module, the contrast signal from the contrast module and the estimated frequency and magnitude signal from the screen estimate module, and producing the first control signal, the first control signal including information regarding which of the filter output signals are to be blended and the proportion of blending.