Apparatus and methods for two point tone reproduction curve...

Details Apparatus and methods for two point tone reproduction curve... Apparatus and methods for two point tone reproduction curve...

2011-08-30

2011-08-30

Worku, Negussie (Department: 2625)

Facsimile and static presentation processing

Facsimile

Facsimile measuring, testing, or calibrating

C358S001900, C358S003100, C358S537000, C399S049000, C399S030000, C382S274000, C382S275000

Reexamination Certificate

active

08009332

ABSTRACT:
Systems and methods provide increased accuracy in recalibrating the tone reproduction curve (TRC) for a photoelectric image sensor that senses density values. The sensor outputs sensed density values for tone patches. A recalibrated TRC is calculated from the original TRC, the known densities of the tone patches, and the sensed density values of the tone patches.

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