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US 2007/0182996 A1Published application
Calibration method for density in image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorNobuyuki Nakajima
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AssigneeCanon Kabushiki Kaisha
InventorNobuyuki Nakajima
Estimating the term…
Calibration associated with output density correction of a printer is effected by software calibration manipulated by the user and device calibration automatically performed by the printer, and, regarding these calibrations, high accurate calibration in which dither patterns for binarizing processing are matched to each other is effected. In a system in which either one of halftone patterns A, B, C and D as dither patterns can be used, regarding fewer number of patterns A and B, second calibration tables are created by correcting first calibration tables based on the software calibration by using correction data of engine characteristics based on the device calibration. Among the usable halftone patterns, the calibration table corresponding to the pattern A or B is selected in accordance with the set halftone pattern, and the output density correction by using the selected table.
An image processing method for generating data for print output, comprising:
A computer-readable storage medium storing a program readable and executable by an information processing apparatus, said program comprising:
A program, stored in executable form in a computer-readable storage medium, for calibration processing for making print output characteristics of a print apparatus constant, said program including codes for executing processings comprising the steps of:
An image processing method for effecting halftone processing by using different patterns in correspondence with kinds of objects, comprising the steps of:
Dependencies are inferred from the claim text.