63fb46d6_bster_US___Patent_applications__Description
[Patent application number] 20100177329 [Published] 07-15-2010 [Description] 
METHOD FOR REDUCING REGISTRATION DEFECTS IN COLOR PRINTING - A method and system modify a rasterized digital image to reduce registration artifacts, the image having a black plane and a color plane by determining if a pixel is part of a connected black region and if the pixel is part of a connected color region. It is determined if the pixel is part of a connected black region and a connected color region that are contiguous. A dilation operation is performed on the color plane value of the pixel if the pixel is part of a connected black region and a connected color region that are contiguous.
Xing Li, Webster US - Patent applications