Patent ID: 7207645
Filing Date: 2007-04-24
Classification: H04N

Abstract:
1. A computer-implemented method for generating a printer tonescale correction function for use in conjunction with a printer including a print engine, the method comprising steps of: (A) identifying a plurality of goal color values; (B) identifying a first plurality of density values provided to the print engine to produce a first printed image; (C) identifying a plurality of measured color values in the first printed image; (D) selecting a plurality of weights associated with the plurality of measured color values, wherein the plurality of weights are defined according to a Gaussian weighting function that weights each of the plurality of measured color values C (E) selecting an inverse model of the print engine based on the first plurality of density values, the plurality of measured color values, and the plurality of weights; and (F) generating the printer tonescale correction function based on the inverse model.