Title:
画像処理装置及び画像処理方法
Document Type and Number:
Japanese Patent JP5573451
Kind Code:
B2
Abstract:
An image processing apparatus including: a determining processing section which binarizes a pixel value of a target pixel using a threshold; a calculation section which calculates feedback values by multiplying binarized pixel values of adjacent processed pixels by a feedback coefficient; a addition section which adds the feedback values to the pixel value of the target pixel before binarization; a diffusion section which diffuses a difference between the binarized pixel value and the unadded pixel value as an error to adjacent unprocessed pixels; and a subtraction section which subtracts the error from the unadded pixel value of the target pixel, wherein when all pixel values of processed pixels are 0 and an output value of the target pixel is a maximum value, it is determined that the target pixel is an isolated point and an output value of an adjacent pixel is set to a forced output value excluding 0.
Inventors:
Yoshizawa 将則
Application Number:
JP2010163467A
Publication Date:
August 20, 2014
Filing Date:
July 21, 2010
Export Citation:
Assignee:
Konica Minolta Co., Ltd.
International Classes:
H04N1/405; G06T5/00
Attorney, Agent or Firm:
Patent business corporation Mitsuaki international patent firm
Hiroshi Arafune
Hiroshi Arafune