Patent ID: 8879122
Filing Date: 2014-11-04
Classification: H04N

Abstract:
1. A method for processing a continuous tone (contone) image, the method comprising: receiving the contone image, wherein the contone image comprises a plurality of pixels, wherein each pixel of the plurality of pixels comprises pixel data associated with a plurality of color planes; forming a pixel group, the pixel group including a target pixel and one or more pixels that are neighboring to the target pixel; for each pixel in the pixel group and for each of one or more color planes of the plurality of color planes, comparing pixel data of the corresponding pixel for the corresponding color plane with one or more threshold levels to generate threshold pixel data; based on the threshold pixel data of the pixels in the pixel group for the one or more color planes, generating one or more color plane pixel windows for the pixel group corresponding to the one or more color planes; and based on the one or more color plane pixel windows, generating a pixel window for the pixel group.