Title:
IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2021/090553
Kind Code:
A1
Abstract:
According to the present invention, a quantized value for a pixel of interest in an input image is derived by using a prescribed threshold matrix. Then, on the basis of a group of pixel values in a prescribed reference region including the pixel of interest in the input image and a group of thresholds corresponding to the group of pixel values, the direction of correction for setting the number of dots in the reference region to a target number is determined. Furthermore, it is determined on the basis of the group of pixel values and the group of thresholds whether or not it is possible to make a change as to whether or not to record dots at the pixel of interest. Then, the quantized value is corrected on the basis of the results of both of these determinations.
Inventors:
OTANI RYOSUKE (JP)
ISHIKAWA HISASHI (JP)
ISHIKAWA HISASHI (JP)
Application Number:
PCT/JP2020/031940
Publication Date:
May 14, 2021
Filing Date:
August 25, 2020
Export Citation:
Assignee:
CANON KK (JP)
International Classes:
B41J2/52; H04N1/405
Foreign References:
| JP2017103562A | 2017-06-08 | |||
| JP2016021735A | 2016-02-04 | |||
| JP2013078119A | 2013-04-25 |
Attorney, Agent or Firm:
TANI & ABE, P.C. (JP)
Download PDF:
Previous Patent: ENTERIC PREPARATION CONTAINING LACTOFERRIN
Next Patent: SUPPORT DEVICE FOR VEHICLE BATTERY PACK AND ELECTRIC VEHICLE
Next Patent: SUPPORT DEVICE FOR VEHICLE BATTERY PACK AND ELECTRIC VEHICLE