公开(公告)号：US20250054119A1

公开(公告)日：2025-02-13

申请号：US18232805

申请日：2023-08-10

Applicant: MEDIATEK INC.

Inventor： Huei-Han Jhuang ,  Jan-Wei Wang ,  Po-Yu Huang ,  Ying-Jui Chen ,  Chi-Cheng Ju

IPC: G06T5/00

Abstract: A HDR tone mapping system includes several modules. A semantic segmentation module is used to extract semantic information from the input image. An image decomposition module is used to decompose the input image to a high-bit base layer and a detail layer. A statistics module is used to generate statistics of pixels of the input image according to the semantic information. A curve computation module is used to generate a tone curve from the statistics. A compression module is used to compress the high-bit base layer to a low-bit base layer according to the tone curve, the statistics and the semantic information. A detail adjustment module is used to tune the detail layer according to the semantic information and the statistics to generate an adjusted detail layer. An image reconstruction module is used to combine the adjusted detail layer and the low-bit base layer to generate an output image.

公开(公告)号：US20250113108A1

公开(公告)日：2025-04-03

申请号：US18373987

申请日：2023-09-28

Applicant: MEDIATEK INC.

Inventor： Jan-Wei Wang ,  Huei-Han Jhuang ,  Po-Yu Huang ,  Ying-Jui Chen ,  Chi-Cheng Ju

IPC: H04N23/76 ,  G06T5/00 ,  G06T7/11 ,  G06T7/246 ,  G06T7/73 ,  H04N23/68 ,  H04N23/745

Abstract: An image adjustment method, applied to an image sensing system comprising an image sensor, comprising: (a) sensing a target image by the image sensor; (b) dividing the target image to a plurality of image regions; (c) acquiring location information of at least one first target feature in the image regions; (d) computing brightness information of each of the image regions; (e) generating adjustment curves according to the brightness information and according to required brightness values of each of the image regions; and (f) adjusting brightness values of the image regions according to the adjustment curves. The step (d) adjusts the brightness information according to the location information or the step (e) adjusts the adjustment curves according to the location information.