公开(公告)号：US12112461B2

公开(公告)日：2024-10-08

申请号：US17824064

申请日：2022-05-25

申请人： REALTEK SEMICONDUCTOR CORP.

发明人： Sheng-Kai Lin ,  Min-Chen Hsu ,  Pao-Chi Yeh ,  Kai-Wen Lai ,  Chen-Chieh Yao

IPC分类号： G06T7/13 ,  G06T5/20 ,  G06T5/73 ,  G06T5/92 ,  G06T7/11

CPC分类号： G06T5/92 ,  G06T5/20 ,  G06T5/73 ,  G06T7/11 ,  G06T7/13 ,  G06T2207/20021

摘要： An adaptive image shading correction method and an adaptive image shading system are provided. The method includes: configuring an image capturing device to obtain a current frame; and configuring a processing unit to: divide the current frame into blocks; select block pairs from the blocks, in which each of the block pairs includes an inner block and an outer block; perform a filtering process for each of the block pairs to determine whether a brightness condition, a saturation condition, a hue similarity condition, and a sharpness similarity condition are met; in response to obtaining filtered block pairs, calculate a sum similarity threshold based on hue statistical data, a saturation difference, and a brightness difference; and use filtered blocks with individual thresholds less than the sum similarity threshold to calculate a shadow compensation value to adjust the current frame.