公开(公告)号：US20240221134A1

公开(公告)日：2024-07-04

申请号：US18496317

申请日：2023-10-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Tingting Zhao ,  Chang Su ,  Chenguang Liu

IPC: G06T5/00

CPC classification number: G06T5/009 ,  G06T2207/20208

Abstract: One embodiment provides a computer-implemented method that includes employing a de-banding process based on image statistics in a dynamic range conversion system, including high dynamic range (HDR) to standard dynamic range (SDR) tone mapping (TM) process or SDR-to-HDR inverse tone mapping (ITM) process. A computing device performs the de-banding process in post-processing during a determination of one or more initial ITM explicit polynomial curve coefficients. One or more parameters of a weighing function of the one or more initial ITM explicit curve coefficients are utilized as one or more controlling knots for balancing a de-banding effect and preserving local detail.

公开(公告)号：US20250166141A1

公开(公告)日：2025-05-22

申请号：US18815753

申请日：2024-08-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tingting Zhao ,  Chenguang Liu ,  Kamal Jnawali ,  Chang Su

IPC: G06T5/77 ,  G06T5/40 ,  G06T5/60

Abstract: Image retouching includes receiving, by a conditional network, conditional information including one or more color histograms for an input image. The input image has a first coloration. The conditional network generates a plurality of scalar parameters based on the one or more color histograms. From the input image, an output image is generated by a base generative network. The output image has a second coloration different from the first coloration. One or more intermediate features generated by the base generative network are modulated based on the plurality of scalar parameters to generate the output image.