公开(公告)号：US11776508B2

公开(公告)日：2023-10-03

申请号：US16729795

申请日：2019-12-30

Applicant: ATI TECHNOLOGIES ULC

Inventor： Shu Key Keith Lee ,  David I. J. Glen

IPC: H04N5/57 ,  H04N19/124 ,  G09G5/37 ,  G09G5/10

CPC classification number: G09G5/37 ,  G09G5/10 ,  G09G2330/12

Abstract: A system includes a display monitor compatible with a video specification having a reference EOTF while exhibiting an actual EOTF that deviates from the reference EOFT. The system further includes a video source subsystem operable to determine an approximated EOTF representative of the actual EOTF based on user input received from a display of at least one test pattern to the user via the display monitor. The at least one test pattern is intended to elicit input from the user based on a visual inspection of the at least one test pattern by the user. The video source subsystem further is to convert color values of each video image of a stream of images to corresponding non-linear codewords based on the approximated EOTF, and transmit the codewords to the display monitor for display as display images representative of the video images.