公开(公告)号：US20240107177A1

公开(公告)日：2024-03-28

申请号：US17950859

申请日：2022-09-22

Applicant: Apple Inc.

Inventor： Bosheng Zhang ,  Tobias Baldauf ,  llya Romanenko ,  Nicolas P. Bonnier ,  Noah D. Bedard ,  Alexandra S. Ludlow ,  Graham D. Finlayson ,  Jason P. de Villiers ,  Claus Moelgaard ,  Hau Ling Hung ,  Paul M. Hubel

IPC: H04N5/243 ,  G06T5/50 ,  G06T7/50 ,  H04N9/73

CPC classification number: H04N5/243 ,  G06T5/50 ,  G06T7/50 ,  H04N9/73 ,  G06T2207/20221

Abstract: Embodiments disclosed herein are directed to devices and methods for performing spatially-varying brightness correction of a flash image. The spatially-varying brightness correction utilizes a set of images that includes one or more images captured under flash illumination and one or more images captured without flash illumination, which are used to decompose one of the flash images or an image generated therefrom into a flash contribution image and an ambient contribution image. The flash contribution image and the ambient contribution image are recombined to generate a corrected flash image, and information about the flash module and/or scene is used to adjust the relative contributions of these images during recombination.