公开(公告)号：US20230050950A1

公开(公告)日：2023-02-16

申请号：US17786906

申请日：2020-12-21

申请人： DOLBY LABORATORIES LICENSING CORPORATION

发明人： Harshad KADU ,  Bharath VISHWANATH ,  Guan-Ming SU ,  Samir N. HULYALKAR

IPC分类号： G06T11/00 ,  H04N5/265 ,  G06T9/00

摘要： Apparatus and methods for providing software and hardware based solutions to the problem of synthesizing noise for a digital image. According to one aspect, a probability image is generated and noise blocks are randomly placed at locations in the probability image where the locations have probability values that are compared to a threshold criterion, creating a synthesized noise image. Embodiments include generating synthesized film grain images and synthesized digital camera noise images.