Method for generating calibration curve

Details Method for generating calibration curve Method for generating calibration curve

2007-01-02

2007-01-02

Lamb, Twyler M. (Department: 2625)

Facsimile and static presentation processing

Facsimile

Facsimile measuring, testing, or calibrating

C358S504000, C382S274000, C250S208100

Reexamination Certificate

active

10233592

ABSTRACT:
A method for generating a calibration curve is disclosed. The method comprises the following steps. Calibration data of one line image of a previous scan are first provided. Reference pixels are selected from the image line. Then a calibration board is scanned and calibration data of the reference pixels are generated. Calibration data of the reference pixels of a previous scan are then selected from the calibration data of one image line of a previous scan. Ratios of the calibration data of the reference pixels and the calibration data of the reference pixels of a previous scan are calculated. Calibration data of all pixels of the image line are finally generated by multiplying the calibration data of the image line of a previous scan and the ratios.

REFERENCES:
patent: 5801962 (1998-09-01), Sheu et al.

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