Invention Grant
- Patent Title: Global tone mapping with contrast enhancement and chroma boost
-
Application No.: US17586511Application Date: 2022-01-27
-
Publication No.: US12086971B2Publication Date: 2024-09-10
- Inventor: Ibrahim Pekkucuksen , Kaimo Lin , Hamid R. Sheikh
- Applicant: Samsung Electronics Co., Ltd.
- Applicant Address: KR Suwon-si
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si
- Main IPC: G06T5/40
- IPC: G06T5/40 ; G06T5/92

Abstract:
An apparatus includes at least one processing device configured to obtain an input image and determine a cumulative distribution function (CDF) histogram from a luminance or luma (Y) channel of the input image. The at least one processing device is also configured to determine an entry CDF histogram in a CDF histogram lookup table (LUT) closest to the determined CDF histogram. The at least one processing device is further configured to apply a Y channel global tone mapping (GTM) curve to the input image based on one or more parameters assigned to the entry CDF histogram from the CDF histogram LUT.
Public/Granted literature
- US20230052082A1 GLOBAL TONE MAPPING WITH CONTRAST ENHANCEMENT AND CHROMA BOOST Public/Granted day:2023-02-16
Information query