Patent ID: 8456706
Filing Date: 2013-06-04
Classification: H04N

Abstract:
1. A method of characterizing printer streaks, the method comprising: (a) printing a test image onto a printable media according to an input characterization data set using a printing system; (b) measuring the test image to generate a characterization data set representing measurements of intensity or color values observed from the test image; and (c) generating a density profile using the characterization data set, the density profile representing intensity or color value variation of the test image in a cross-process direction transverse to a process direction of the printing system; (d) using a processor, determining a descriptor parameter set for a streak template that best approximates the density profile using a basis selection algorithm, the descriptor parameter set including: (e) updating the density profile according to the streak template and the descriptor parameter set; (f) repeating steps (d) and (e) to determine at least a further descriptor parameter set and to further update the density profile; and (g) generating a printer streak characterization according to the streak template and the descriptor parameter sets.