Patent ID: 7952761
Filing Date: 2011-05-31
Classification: H04N

Abstract:
1. A method performed by an image processing device for compensating for streak defects in images formed by a digital printer having a full width sensing device and a spatially varying Tone Reproduction Curve (STRC) application device comprising: generating a first set of test images on a sensing substrate; sensing the cross-process reflectance of the first set of test images on a sensing substrate; generating a first set of reflectance profile data using the sensed cross-process reflectance of the first set of test images; generating a spatially varying Printer Model from the first set of reflectance profile data; generating a first set of goal reflectance data from the first set of reflectance profile data; generating a spatially varying Tone Reproduction Curve (STRC) from the spatially varying Printer Model and the first set of goal reflectance data; and generating a first streak-corrected image using the STRC.