REDUCTION OF IMAGE ARTIFACTS IN DIGITAL PRINTING

摘要

An apparatus and method of reducing image artifacts on ink coverage areas of a lithographic printing plate are provided. The method includes providing digital image data including ink coverage pixel values; reducing the ink coverage pixel values by a predetermined amount by applying a transformation to the digital image data; and imaging a printing plate using the transformed digital image data. The apparatus includes a processor operable to apply a transformation to received digital image data to reduce ink coverage pixel values included in the digital image data by a predetermined amount; and an imaging device operable to image a printing plate using the transformed digital image data with the imaging device being in electrical communication with the processor.