Patent ID: 8665499

Claim:
A method for processing isolated holes of an image to be printed by a printer, comprising: detecting whether one or more pixels corresponding to an isolated hole in the image are in an off state, the off state defined by a lower binary logic level relative to a binary logic level corresponding to an on pixel; determining a first sum of pixels that are in an on state in a first pixel ring surrounding the one or more pixels corresponding to the isolated hole when the one or more pixels in the isolated hole are detected to be in the off state; comparing the first sum of pixels in the first pixel ring that are in the on state with a first threshold sum; turning off a first number of one or more pixels in at least a second pixel ring either comprising of or surrounding the one or more pixels corresponding to the isolated hole when the first sum of pixels in the on state is greater than the first threshold sum, wherein the second pixel ring is inside the first pixel ring; and outputting the isolated hole including the turned off first number of pixels in the second pixel ring on a printable medium as an output image.