Patent Number: 6,307,960

Title: Color image reading apparatus and color image reading method

Abstract: A color image forming apparatus includes a scanner, an image processor, and an print engine. The color image forming apparatus further includes an operation panel through which an operator can selectively set two different mode, i.e., speed mode and quality mode. In the speed mode, the scanner is set in a first scanning speed and the image processor executes a color masking process by using a first conversion matrix dedicated for the speed mode. On the other hand, in the quality mode, the scanner is set in a second scanning speed which is lower than the first scanning speed and the image processor executes a color masking process by using a second conversion matrix dedicated for the quality mode. By selectively using the first and second conversion matrices in response to the scanning speed, an appropriate color masking can be executed regardless change in the scanning speed.

Inventors: Yamazaki; Tsutomu (Sagamihara, JP)

Assignee: Minolta Co., Ltd.

International Classification: H04N 1/60 (20060101); G06K 009/00 ()

Expiration Date: 10/23/2018