US 7,321,446 B2
Color image processing device and color image processing method
Hirofumi Namikawa, Kameoka (Japan); and Katsushi Mimamino, Kyoto (Japan)
Assigned to Murata Kikai Kabushiki Kaisha, Kyoto (Japan)
Filed on Jul. 21, 2003, as Appl. No. 10/624,407.
Claims priority of application No. 2002-228313 (JP), filed on Aug. 06, 2002.
Prior Publication US 2004/0036930 A1, Feb. 26, 2004
Int. Cl. G06F 15/00 (2006.01)
U.S. Cl. 358—1.9  [358/448; 358/451; 355/233; 355/18] 18 Claims
OG exemplary drawing
 
1. A color image processing device comprising:
n line sensors which are arranged with a prescribed interval L between one another;
an image signal output unit which outputs image signals under a prescribed cycle from the line sensors;
a line memory which stores the image signals for a plurality of lines and outputs the image signals with a delay; and
a control unit which controls to input one of the image signals of a certain cycle into the line memory, and to output an image signal from the line memory by delaying a certain number of lines, in accordance with a prescribed rate of magnification N,
wherein when P is a pixel pitch in a sub scanning direction during a scanning operation under 100% magnification, the control unit calculates a number of pixels which increases and decreases by the rate of magnification from N·L/P, determines which cycle is to be selected in accordance with a decimal part d of the calculated number, and determines the number of delayed lines in accordance with an integral part D.