Synaptics Incorporated
Systems and methods for image optimization and enhancement in electrophotographic copying

Abstract:

Systems and methods for enhancing an image for printing include identifying a plurality of true edge positions in a scanned digital image, generating an edge restoration signal based on image data at the plurality of true edge positions, generating a boost value for each pixel position in the image as a function of the edge restoration signal and an unsharp masking of the image, and generating an enhanced image. A system may include a print interface, an image interface receiving a digital image without an explicit K component, and an image processing module that computes a halftone energy measure, an edge strength, and a colorfulness measure, generate a K component based on the halftone energy measure, the edge strength, and the colorfulness measure, and output data representing the image and a K component to the print engine.