Title:
IMAGE PROCESSING METHOD, APPARATUS, PROGRAM, AND IMAGE FORMING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2020/179743
Kind Code:
A1
Abstract:
Provided are an image processing method, an apparatus, a program, and an image forming apparatus that can prevent an artifact at a boundary portion of a threshold matrix and enable high-quality correction even when defective recording elements are densely arranged. The image processing method according to an embodiment of the present invention comprises: invalidating defective recording elements of a recording head and performing correction to suppress visibility of a defective image using surrounding recording elements; and quantizing image data. Quantization processing includes applying a first threshold matrix to a first image region separated by a distance more than a first distance from a defective image region, applying a second threshold matrix to a second image region at a distance nearer than the first distance, and applying a third threshold matrix to a third image region at a boundary between the first image region and the second image region.
Inventors:
SHIBATA HIROYUKI (JP)
Application Number:
PCT/JP2020/008730
Publication Date:
September 10, 2020
Filing Date:
March 02, 2020
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
B41J2/01
Foreign References:
| JP2014144610A | 2014-08-14 | |||
| JP2014144549A | 2014-08-14 | |||
| JP2006297919A | 2006-11-02 | |||
| JP2014200970A | 2014-10-27 | |||
| JP2017177441A | 2017-10-05 |
Attorney, Agent or Firm:
MATSUURA, Kenzo (JP)
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