Patent ID: 8115781

Claim:
A method of performing computerized processing of image data comprising: analyzing, via a computer, first display information including pixel data indicative of pixel display on a graphical user interface; detecting one or more ramp steps in the pixel data assigning, in association with random number generation and/or threshold setting functionality, a carry possibility for a pixel adjacent the one or more ramp steps; and generating second display information including adjusted pixel data for pixels adjacent the ramp steps; wherein the second display information includes pixel values adjusted according to the carry possibility in one or both of the temporal domain and/or spatial domain; wherein the carry possibility is an adaptive carry possibility characterized in that carry possibilities for pixels adjacent the one or more ramp steps are accorded progressively smaller possibilities as a function of the pixel's increasing distance from the adjacent ramp step; wherein differing carry possibilities are assigned to pixels as a function of deviation from the one or more ramp steps; wherein, when deviation (dev) is characterized mathematically as (y 1 +y 2 +y 3 +y 4 +y 6 +y 7 +y 8 +y 9 )−(y 5 *8) for pixels “y,” the carry possibility is provided via: If (dev < 0) Carry possibility = T0; else if (R0 <= dev < R1) carry possibility = T1; else if (R1 <= dev < R2) carry possibility = T2; else carry possibility = T3; where T 0 =0, T 1 =0.25, T 2 =0.5, T 3 =0.75, and R 0 , R 1 , and R 2 specify regions 0 , 1 , and 2 adjacent to a ramp step junction, respectively.