公开(公告)号：US20220230601A1

公开(公告)日：2022-07-21

申请号：US17658468

申请日：2022-04-08

Applicant: Karlsruhe Institute of Technology

Inventor： Carsten Dachsbacher ,  Emanuel Schrade

IPC: G09G5/06 ,  G09G5/04

Abstract: A perceived gamut (PG) of a physical display device presenting frames of an image sequence to a human viewer may be increased. An interface of the system receives a sequence of frames from an image sequence source with each frame having input color data associated with each pixel of the respective frame, the input color data being given in a specified color space. A perceived color computation module computes for each particular frame of the received image sequence perceived colors of each pixel and a frame-specific adapted white point. An optimizer module applies a chromatic adaptation transformation to each window frame to determine display gamut adjusted perceived colors of each pixel of the respective frame and an error per window frame. The chromatic adaptation transformation is updated for all window frames to minimize the determined error, and the current frame is output to the display.