Patent Number: 7,133,148

Title: Digital camera for image device calibration

Abstract: The invention is directed to an apparatus for calibrating an output of an image output device, comprising an image input device configured to image an output of the image output device; and a test pattern generator having an output of a dynamic test patch area and a grating area connected to an input of the image output device and responsive to the image input device for adjusting an intensity level of the dynamic test patch area to match an average intensity level of the grating area.

Inventors: Silverstein; D. Amnon (Mtn. View, CA)

Assignee: Hewlett-Packard Development Company, L.P.

International Classification: G06F 3/12 (20060101); G06F 15/00 (20060101); G06K 1/00 (20060101)

Expiration Date: 2019-11-07 0:00:00