Patent ID: 7710609
Filing Date: 2010-05-04
Classification: H04N

Abstract:
1. A machine-implemented method comprising: using said computer, adding at least one trap area between abutting objects on an image to be printed by a printing engine, wherein said trap area includes a central region between two outer regions; using said computer, establishing a target toner concentration for pixels within said trap area based on toner concentrations of said abutting objects; using said computer, correcting said target toner concentration to account for irregularities of said outer regions of said trap area to produce a corrected toner concentration for pixels in said trap area in a process using a lookup table of correction values of said outer regions and a relationship between said central region and said two outer regions; and using said printing engine, performing printing using said corrected toner concentration for said pixels in said trap area; and wherein as said trap area increases in size, said outer regions remain approximately constant in size and said central region increases in size.