Patent ID: 8400683

Claim:
A method of printer streak compensation comprising: constructing a printer streaks basis function model during printer cycle up; printing a set of N AC test images during a print job printing print job images, each test image having a different area coverage level such that the area coverage levels of the set are spaced across the range of tones that the printer can print; and performing a steak control signal update cycle including: directly measuring the reflectance of a subset of the set of test images having N K of the test images representing area coverage levels including a shadow region, a midtone and a highlight region of area coverage level, where N K <N AC , projecting across the area coverage levels of all of the test images by inferring the reflectances of the test images not directly measured during the current streak control signal update cycle using the measured reflectances of the subset of test images and the printer streaks basis function model, updating the reflectance profiles for all of the test images, calculating updated spatially varying tone reproduction control signals using the updated reflectance profiles, and printing streak-corrected print job images using the updated spatially varying tone reproduction control signals.