Invention Application
- Patent Title: IMAGE PROCESSING APPARATUS AND IMAGE FORMING APPARATUS
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Application No.: US17591909Application Date: 2022-02-03
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Publication No.: US20220256052A1Publication Date: 2022-08-11
- Inventor: Hiroomi Nakatsuji , Hiroki Sakane , Naoko Kawashima , Jun Nakano , Masato Usui
- Applicant: KYOCERA Document Solutions Inc.
- Applicant Address: JP Osaka
- Assignee: KYOCERA Document Solutions Inc.
- Current Assignee: KYOCERA Document Solutions Inc.
- Current Assignee Address: JP Osaka
- Priority: JP2021-018311 20210208
- Main IPC: H04N1/405
- IPC: H04N1/405

Abstract:
An image processing apparatus includes a halftone processing unit and a multi-level gradation processing unit. The halftone processing unit is configured to perform a halftone process for a target image and generate a binary image corresponding to the target image. The multi-level gradation processing unit is configured to (a) set a target pixel as a dot pixel in the binary image, (b) determine whether a dot exists on plural first periphery pixels with a predetermined first distance from the target pixel and plural second periphery pixels with a predetermined second distance from the target pixel or not, (c) derive a gradation level of the target pixel among predetermined three or more gradation levels on the basis of a number of dots on the plural first periphery pixels and a number of dots on the plural second periphery pixels and thereby generate a multi-level gradation image.
Public/Granted literature
- US11539859B2 Image processing apparatus and image forming apparatus Public/Granted day:2022-12-27
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