US 6,014,457 AGranted

Image processing apparatus

AssigneeFuji Xerox Co., Ltd.

InventorsMasahiko Kubo, Nobuyuki Kato, Koichiro Shinohara, Masahiro Takamatsu, Kazuhiro Iwaoka

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Abstract

An image processing apparatus for converting input color image signals to image recording signals to be sent to an image forming apparatus. The image processing apparatus comprises: a first color converting unit for converting the input color image signals to three-variable color signals independent of devices; a second color converting unit for converting the three-variable color signals to the image recording signals; and a parameter determining unit for determining parameters of the first color converting unit. The parameter determining unit determines the parameters so as to make characteristic colors in the input color image signals coincide with predetermined colors and to maintain linearities of color reproduction characteristics of an output image from the image forming apparatus.

Claims33

Dependent claims

An image processing apparatus for converting input color image signals to image recording signals to be sent to an image forming apparatus, said image processing apparatus comprising:

first color converting means for converting said input color image signals to three-variable color signals independent of devices;
second color converting means for converting said three-variable color signals to said image recording signals;
and
parameter determining means for determining parameters of said first color converting means and for inputting said parameters to said first color converting means;
said parameter determining means determining said parameters so as to make characteristic colors in said input color image signals coincide with predetermined colors and to maintain linearities of color reproduction characteristics of an output image from said image forming apparatus.

2 more elements

Dependencies are inferred from the claim text.