Image processing system and method with improved reconstruction

Details Image processing system and method with improved reconstruction Image processing system and method with improved reconstruction

1992-03-25

1993-09-07

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358466, 358465, 358462, 358455, 382 54, H04N 140

Patent

active

052434443

ABSTRACT:
An image processing system converts unscreened and other halftone images to continuous tone images. Value data is sequencitally generated for successive pixels of a screened or unscreened halftone image. Each image pixel is Sigma filtered with a predetermined set of filter parameters including the filter window size and a Sigma difference range that is applied to determine which pixels in the filter window are counted in determining average window pixel values. An output continuous tone image containing the Sigma filtered pixels is generated for storage and/or processing to a halftone copy or print.

REFERENCES:
patent: 4503461 (1985-03-01), Nishimura
patent: 4691366 (1987-09-01), Fenster et al.
patent: 4722008 (1988-01-01), Ibaraki et al.
patent: 4730219 (1988-03-01), Oshikoshi
patent: 4782399 (1988-11-01), Sato
patent: 4811239 (1989-03-01), Tsao
patent: 4841374 (1989-06-01), Kotani et al.

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