Image processing apparatus

Details Image processing apparatus Image processing apparatus

1988-06-06

1990-09-11

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

358447, G06K 940

Patent

active

049568736

ABSTRACT:
In order to correct the swathe related banding effect often seen on swathe-scanned imagers a vertical smoothing function separates out artifact detail from the idealized image and derives, from this, proportional corrections for each channel within a swathe. In cases where the artifact varies from swathe to swathe a second algorithm is used to obtain correction values for each line of the image.

REFERENCES:
patent: 4128830 (1978-12-01), Weythman
patent: 4129853 (1978-12-01), Althauser et al.
patent: 4162481 (1979-07-01), DuVall
patent: 4288817 (1981-09-01), Igel
patent: 4298887 (1981-11-01), Rode
patent: 4562486 (1985-12-01), Suzuki et al.
patent: 4736439 (1988-04-01), May
patent: 4827533 (1989-05-01), Tanaka
"IEEE Transactions on Pattern Analysis and Machine Intelligence" vol. PAM1-4 (1982) Jan., No. 1, NY, U.S.A.; pp. 57-61.

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