公开(公告)号：US11222614B1

公开(公告)日：2022-01-11

申请号：US16985622

申请日：2020-08-05

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Yun-Shu Yang ,  Yen-Tao Liao ,  Jen-Ta Yang

IPC: G09G5/10 ,  G06F1/16

Abstract: An image processing method with auto-adjusting gamma value is provided. This image processing method includes: receiving a detected value dependent upon a view angle between a normal direction of a screen and a sight direction of a viewer to the screen; receiving an original video frame with a plurality of pixels; determining at least one gamma table to obtain a gamma value for a pixel of the plurality of pixels according to the detected value, wherein there is an original pixel value corresponding to the pixel; and generating and outputting a corrected pixel value of the pixel based on the gamma value and the original pixel value of the pixel, wherein the screen is configured to show a corrected video frame having the pixel with the corrected pixel value. An image processing assembly and an image processing system are also provided.

公开(公告)号：US20210043153A1

公开(公告)日：2021-02-11

申请号：US16547586

申请日：2019-08-22

Applicant: NOVATEK Microelectronics Corp.

Inventor： Yun-Shu Yang ,  Yen-Tao Liao ,  Hongchun Cong

IPC: G09G3/36

Abstract: A method of gray level adjustment for an image data generator includes receiving a plurality of image frames including a first image frame and a second image frame next to the first image frame, wherein the first image frame includes a first input subpixel data corresponding to a first subpixel of a display panel and the second image frame includes a second input subpixel data corresponding to the first subpixel; with respect to the first input subpixel data, outputting a first gray level data of a first gamma lookup table as a first output subpixel data; and with respect to the second input subpixel data, outputting a second gray level data of a second gamma lookup table as a second output subpixel data. The first output subpixel data and the second output subpixel data are corresponding to the first subpixel of the display panel.

公开(公告)号：US10791266B1

公开(公告)日：2020-09-29

申请号：US16449436

申请日：2019-06-23

Applicant: NOVATEK Microelectronics Corp.

Inventor： Yun-Shu Yang ,  Yen-Tao Liao

IPC: H04N5/202 ,  H04N5/232 ,  H04N5/341

Abstract: The image processing circuit includes a receiving circuit, configured to receive a plurality of pixels of a video frame, wherein the plurality of pixels are corresponding to a plurality of pixel locations, a pixel location of a pixel is corresponding to a gamma category value, and the gamma category value is either a gamma-high value or a gamma-low value; and a gamma table circuit, configured to obtain a gamma table; and a compensation circuit, configured to generate an output pixel value; wherein a plurality of first pixel locations are corresponding to a plurality of gamma-high tables, and the plurality of gamma-high tables are mutually different; wherein a plurality of second pixel locations are corresponding to a plurality of gamma-low tables, and the plurality of gamma-low tables are mutually different.