Apparatus and method for converting and displaying R, G, and B s

Details Apparatus and method for converting and displaying R, G, and B s Apparatus and method for converting and displaying R, G, and B s

1992-04-23

1993-07-06

Coles, Sr., Edward L.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358448, 358 75, H04N 146

Patent

active

052259013

ABSTRACT:
The present invention provides an image processing apparatus. The image processing apparatus is capable of determining a color-separation condition suitable for any kind of prepress scanner and comprises an image reading unit. A converting condition storing device stores data relating to at least one converting condition for converting first R.G.B. signals obtained through reading by the image reading unit into second R.G.B. signals which are substantially equivalent to signals which would be obtained through reading by a different image reading unit within one kind of prepress scanner. A first converting device changes the first R.G.B. signals into second R.G.B. signals in accordance with the converting condition data. A second converting device changes the second R.G.B. signals into C.M.Y. or C.M.Y.K. signals in accordance with color-separation condition data. A color-separation condition correcting device corrects the color-separation condition, and a visual image display produces a visual image from the C.M.Y. or C.M.Y.K. signals obtained by the second converting device during each color-separation condition correcting step until a final correction is achieved.

REFERENCES:
patent: 4668980 (1987-05-01), Stansfield et al.
patent: 4992864 (1991-02-01), Akiyama
patent: 5073818 (1991-12-01), Iida
patent: 5081527 (1992-01-01), Naito
patent: 5103319 (1992-04-01), Ito et al.

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