Invention Grant
- Patent Title: Methods and apparatus for histogram based tone mapping
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Application No.: US17065334Application Date: 2020-10-07
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Publication No.: US11769234B2Publication Date: 2023-09-26
- Inventor: Min Li , Ike Ikizyan , Sudeep Ravi Kottilingal , Gopikrishnaiah Andandan
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Procopio, Cory, Hargreaves & Savitch LLP
- Main IPC: G06T5/00
- IPC: G06T5/00 ; G06T5/40

Abstract:
The present disclosure relates to methods and devices for video or frame processing including an apparatus, e.g., a video or frame processor. In some aspects, the apparatus may receive a video stream including a plurality of frames, each of the plurality of frames including luminance information. The apparatus may also perform a histogram analysis on the luminance information for each of the plurality of frames. Additionally, the apparatus may determine whether a difference between the luminance information for each of the plurality of frames and a current luminance distribution is greater than a perceptual threshold. The apparatus may also calculate an updated tone mapping configuration based on the luminance information for a frame when the difference between the luminance information for the frame and the current luminance distribution is greater than the perceptual threshold.
Public/Granted literature
- US20220108429A1 METHODS AND APPARATUS FOR HISTOGRAM BASED TONE MAPPING Public/Granted day:2022-04-07
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