Patent Document ID: 20130250363
Application ID: 13427317
Patent Status: 0

Claim One:
1. A system for maintaining edge pixels in a reduced coverage image, comprising: a halftoning circuit to convert pixels of continuous image data to pixels of binary image data using a halftone screen corresponding to a predetermined reduced coverage percentage; and an edge detection circuit to determine a non-edge pixel in the binary image data; said edge detection circuit determining if a target pixel of binary image data in a window of pixels of binary image data is a non-white pixel; said edge detection circuit comparing, when said edge detection circuit determines that the target pixel of binary image data in a window of pixels of binary image data is a non-white pixel, the window of pixels of binary image data with a predetermined pattern of pixels of binary image data corresponding to the predetermined reduced coverage percentage; said edge detection circuit determining that the target pixel is a non-edge pixel when said edge detection circuit determines that every non-white pixel location in the predetermined pattern of pixels of binary image data corresponds to a non-white pixel location in the window of pixels of binary image data.