Patent ID: 6724932
Filing Date: 2004-04-20
Classification: G06T,H04N

Abstract:
A method of processing image data,said data representing an image that includes a first pixel, a second pixel, and a third pixel that have a first signal value, a second signal value, and a third signal value that have different spectral distributions, said first pixel and said second pixel being alternately arrayed in a predetermined direction to form a first line, said first pixel and said third pixel being alternately arrayed in said predetermined direction to form a second line, and said first line and said second line being alternately arrayed in a direction approximately orthogonal to said predetermined direction, said method comprising a step of estimating at least one signal value among said first signal value, said second signal value, and said third signal value at all pixel positions, based on said first signal value, said second signal value, and said third signal value, wherein said second signal value on said second line is estimated based on a difference between said first signal value and said second signal value on said first line adjacent to said second line, wherein a second signal value at said first pixel on said second line is estimated based on a difference between a second signal value at said second pixel adjacent to said-first pixel on said first line, and said first signal value at said second pixel computed by performing a one-dimensional interpolation computation on said first signal value on said first line, and wherein a second signal value at said first pixel on said second line is estimated by adding said difference to a first signal value at said first pixel on said second line.