Title:
印刷装置、印刷方法およびディザマスクの設定方法
Document Type and Number:
Japanese Patent JP5803191
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To solve a problem that it is difficult to realize an assumed image quality due to displacement of a dot formation position when a dither method or an error diffusion method using a mask with high dispersibility is generally used for printing at a high image quality.SOLUTION: When dot data indicating existence of dot formation is created on the basis of a graduation value of each pixel forming an image, respective dots belonging to plural pixel groups with different printing conditions are overlaid in a common region for printing. A noise characteristic having a peak on a higher frequency side than a low frequency region of not more than a predetermined spatial frequency is provided to distribution of dots formed in the common region in a spatial frequency region. Furthermore, in a predetermined gradation range that probabilities k1, k2, at which the dots are formed on first and second pixels belonging to two pixel groups are k1<0.5 and k2<0.5, when the first and second pixels are adjacent pixels, probability K, at which the dots are formed on both of the adjacent pixels, is set proximate to k1 and k2.
Inventors:
Shigeaki Kakutani
Application Number:
JP2011065682A
Publication Date:
November 04, 2015
Filing Date:
March 24, 2011
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
B41J2/01; H04N1/405; B41J2/52; G06T5/00
Domestic Patent References:
| JP2010263618A | ||||
| JP2010234728A | ||||
| JP2008162078A |
Attorney, Agent or Firm:
Meisei International Patent Office