| US 7,557,953 B2 | ||
| Image processing device and image processing method | ||
| Shuichi Kagawa, Tokyo (Japan); and Hiroaki Sugiura, Tokyo (Japan) | ||
| Assigned to Mitsubishi Denki Kabushiki Kaisha, Tokyo (Japan) | ||
| Appl. No. 10/569,947 PCT Filed Jul. 23, 2004, PCT No. PCT/JP2004/010492 § 371(c)(1), (2), (4) Date Feb. 28, 2006, PCT Pub. No. WO2005/022460, PCT Pub. Date Mar. 10, 2005. |
||
| Claims priority of application No. 2003-305917 (JP), filed on Aug. 29, 2003; and application No. 2003-353348 (JP), filed on Oct. 14, 2003. | ||
| Prior Publication US 2007/0008556 A1, Jan. 11, 2007 | ||
| Int. Cl. H04N 1/60 (2006.01) | ||
| U.S. Cl. 358—1.9 [358/518; 358/520; 382/162; 382/167] | 26 Claims |
| 1. An image processing apparatus for converting the frequency characteristics of first color data representing a color image
and outputting second color data corresponding to the first color data, comprising:
a hue region data calculation means for using the first color data to calculate first hue region data valid for a plurality
of particular hue components in the color image represented by the first color data;
a frequency characteristic conversion means for converting the frequency characteristics of the first hue region data independently
for each of the hue components and thereby outputting second hue region data; and
means for calculating the second color data by using the second hue region data.
|