Patent ID: 8699107
Filing Date: 2014-04-15
Classification: B41J,G06K,H04N

Abstract:
1. A method of printing a high density image on a transparent medium comprising: calculating an expected optical density for an input pixel value using a first function configured to output an optical density which produces a substantially linear relationship between the input pixel value and the output optical density as substantially perceived by a human eye; calculating an L* value which represents a parameter in a CIELAB colorspace using the expected optical density; calculating a response function that describes the relationship between L* and an output pixel value, the output pixel value specifying the amount of ink to deposit onto the transparent medium; using the response function to solve for an output pixel value for the L* value; and creating a look up table based upon the input pixel value and the output pixel value, the look up table configured to be used in an inkjet printer.