Title:
画像処理装置、画像形成装置、画像処理方法、画像処理プログラムおよび画像処理プログラムを記録する記録媒体
Document Type and Number:
Japanese Patent JP4495201
Kind Code:
B2
Abstract:
Based on average values for respective color components calculated by an average value calculating section, a histogram generating section obtains, for respective pixels of interest, a maximum value of the average values among the color components and a maximum difference in the average values among the color components, and generates histograms respectively for the maximum value and the maximum difference in which histograms a number of pixels for a density bin is considered as a frequency-of-occurrence value. A determination section obtains a number of density bin having a predetermined frequency-of-occurrence value or more for each of the histograms for the maximum value and the maximum difference, and determines that the data of image is of a blank page image when both of the numbers of density bins are not greater than a bin threshold value which is set according to scanning modes or printing modes.
Inventors:
Kazuhisa Kubota
Application Number:
JP2007264922A
Publication Date:
June 30, 2010
Filing Date:
October 10, 2007
Export Citation:
Assignee:
Sharp Corporation
International Classes:
H04N1/46; G06T1/00; H04N1/00; H04N1/60
Domestic Patent References:
| JP2002077669A | ||||
| JP2003298859A | ||||
| JP2005286571A | ||||
| JP11150657A | ||||
| JP10021386A | ||||
| JP2000270234A | ||||
| JP11266369A | ||||
| JP2005229261A |
Attorney, Agent or Firm:
Keiichiro Saikyo
Takeshi Sugiyama
Takeshi Sugiyama