Image forming apparatus and method which performs an under color

Details Image forming apparatus and method which performs an under color Image forming apparatus and method which performs an under color

1995-08-18

1999-07-06

Couso, Yon

Image analysis

Color image processing

Color correction

358518, G06K 900

Patent

active

059206454

ABSTRACT:
A color image forming apparatus and method which optically reads an original image of a document and obtains color image signals representing the document. A color characteristic of the original image is discriminated during a first scanning operation to determine the characteristics of the document including detecting regions of the document which are color, black and white, made of a photograph, or text. The parameters of an under color removal are set based on the detected characteristics of the document. A second scanning operation is performed and the under color removal process is performed based on the previously set parameters. The under color removal process is a process in which the intensity of the color signals is reduced. The black component of the image is generated based on the amount by which the intensity (or density) of the color image signals are reduced. The processed image is then printed.

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