Tone reproduction curve error reduction

摘要

Control parameters of a printing device are optimized using a process model to reduce a process tone reproduction curve (TRC) error between a process TRC and a desired TRC. Tone-corrected halftone levels for the printing device are generated using a sensor model to reduce a printing device TRC error between a TRC of the printing device and the desired TRC, based on color patches printed by the printing device using the control parameters as have been optimized, as measured by one or more sensors of the printing device.

主权项

1. A method of reducing tone reproduction curve (TRC) error for a printing device, the method being performed by one or more processors of the printing device and comprising:
measuring one or more disturbances affecting the printing device; using a process model including:
generating a process TRC based on control parameters of the printing device and the one or more measured disturbances;determining a process TRC error based on a desired TRC and the process TRC;determining a cost function based on the process TRC error; andoptimizing the control parameters to minimize the cost function in order to reduce the process TRC error; measuring a plurality of color patches printed by the printing device based on the optimized control parameters; and using a sensor model including generating a plurality of tone-corrected halftone levels for the printing device to reduce a printing device TRC error between a TRC of the printing device and the desired TRC.