| US 7,564,591 B1 | ||
| Image processing apparatus and image processing method | ||
| Kiichiro Takahashi, Kawasaki (Japan); Naoji Otsuka, Yokohama (Japan); Hitoshi Sugimoto, Yokohama (Japan); Hitoshi Nishikori, Inagi (Japan); Osamu Iwasaki, Tokyo (Japan); Kaneji Yamada, Tokyo (Japan); Minoru Teshigawara, Yokohama (Japan); Takeshi Yazawa, Kawasaki (Japan); and Toshiyuki Chikuma, Kawasaki (Japan) | ||
| Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Oct. 04, 2000, as Appl. No. 9/678,020. | ||
| Claims priority of application No. 11-284938 (JP), filed on Oct. 05, 1999. | ||
| Int. Cl. H04N 1/405 (2006.01) | ||
| U.S. Cl. 358—3.21 [358/3.23] | 12 Claims |
| 1. An image processing apparatus that performs image processing for generating image data to be used for printing by means
of printing means, said apparatus comprising;
retaining means for retaining density correction data for each of a plurality of printing conditions between which density
appears differently in the printing by means of the printing means, the printing conditions being conditions according to
which the printing means performs printing and being previously determined;
judging means for judging as to which printing condition the printing means should perform printing according to when performing
image processing, wherein said judging is based on image data to be printed; and
density correction means for performing density correction on the image data using the density correction data corresponding
to the printing condition judged by said judging means, among the density correction data retained by said retaining means,
wherein the printing means can form dots having different sizes, the printing conditions include printing conditions which
differ from each other in dot sizes which are formed in printing performed by the printing means, and the printing means forms
the dot of size corresponding to the printing condition, in accordance with the image data.
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