Invention Grant
- Patent Title: Image processing apparatus, image processing method, and storage medium for performing tone conversion
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Application No.: US16010786Application Date: 2018-06-18
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Publication No.: US10440343B2Publication Date: 2019-10-08
- Inventor: Kaori Tajima
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Carter, DeLuca & Farrell LLP
- Priority: JP2017-119885 20170619
- Main IPC: H04N11/20
- IPC: H04N11/20 ; H04N9/64 ; H04N9/78 ; H04N9/68

Abstract:
An image processing apparatus includes a separation unit that separates a high-frequency component and a low-frequency component, a first generation unit that generates a color signal component from the low-frequency component, a second generation unit that generates a color signal component from the low-frequency component, a third generation unit that generates a color signal component used in common for a luminance signal and a chrominance signal, a first tone conversion unit that performs first tone conversion processing on an output of the third generation unit, a color-and-luminance separation unit that generates a luminance signal and a chrominance signal, a second tone conversion unit that performs a second tone conversion on the high-frequency component, and a combining unit that combines outputs of the color-and-luminance separation unit and the second tone conversion unit.
Public/Granted literature
- US20180367780A1 IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND STORAGE MEDIUM Public/Granted day:2018-12-20
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