Patent Number: 6,310,698

Title: Process for calibrating electronic imaging devices

Abstract: A method for developing calibration curves and for calibrating a halftone imaging device to reproduce on an imaging medium gray scale values equal to input gray scale values entered in said imaging device. According to this method a calibration function representing a linear change in reproduced halftone dot size on said imaging medium as a function of input halftone dot size is developed by using the device to reproduce on an imaging medium at least two test input dot values representing two different % halftone dot sizes and determining a linear change between the input and the reproduced halftone dot sizes. The dot growth is used to predict dot changes for other % halftone dots and thus construct calibration curves which may be used to calibrate the imaging device.

Inventors: Samworth; Mark R. (Wilmington, DE)

Assignee: Artwork Systems, Inc.

International Classification: H04N 1/405 (20060101); H04N 1/407 (20060101); H04N 001/405 (); H04N 001/52 ()

Expiration Date: 10/30/2018