Image data processing apparatus and method thereof

Details Image data processing apparatus and method thereof Image data processing apparatus and method thereof

1990-06-18

1994-05-17

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358429, 358467, H04N 100

Patent

active

053132866

ABSTRACT:
A window of n.times.m dot is spread over binarized color image data in an original image in order to multi-levelcode the binary data for various image processes with respect to the multi-level-coded data. A binary window is re-arranged to determine the number of dots to be printed within the window for re-arrangement of the dots so as to correspond to the dot positions in the original image. When the number of dots to be printed is within the number of dots in the original image, the dots are rearranged so as to correspond to the dot positions in the original image, while on the contrary, when the number of dots to be printed is increased or decreased, the number of dots is accordingly increased or decreased based on a table, in which the priority of dot arrangement is provided. For these reasons, it is possible to perform various image processes to meet the characteristics of a desired binary color printer even if the original image contains binary color data, thereby allowing a good color image suitable for the binary color printer to be produced.

REFERENCES:
patent: 4581762 (1986-04-01), Lapidus et al.
patent: 4648119 (1987-03-01), Wingfield et al.
patent: 4717964 (1988-01-01), Abe et al.
patent: 4803558 (1989-02-01), Hiratsuka et al.
patent: 4837846 (1989-06-01), Oyabu et al.
patent: 4878125 (1989-10-01), Katayama et al.

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