Invention Grant
- Patent Title: Image processing apparatus, image processing method, and non-transitory storage medium for determining extraction target pixel
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Application No.: US17364015Application Date: 2021-06-30
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Publication No.: US11948342B2Publication Date: 2024-04-02
- Inventor: Satoru Yamanaka
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: CANON U.S.A., INC. IP Division
- Priority: JP 20116595 2020.07.06
- Main IPC: G06V10/00
- IPC: G06V10/00 ; G06V10/26 ; G06V30/148 ; G06V30/10
Abstract:
A first binary image is generated by binarizing an input image based on a threshold, a second binary image is generated by changing a pixel that has predetermined high luminance in the input image into a black pixel, and whether a black pixel cluster in the second binary image is made to be an extraction target is determined based on a position of a character image identified based on a black pixel cluster in the first binary image, and a position of the black pixel cluster in the second binary image.
Public/Granted literature
Information query
