Computational Flash Photography through Intrinsics
Sepideh Sarajian Maralan Chris Careaga Yağız Aksoy
Flash is an essential tool as it often serves as the sole controllable light
source in everyday photography. However, the use of flash is a binary decision
at the time a photograph is captured with limited control over its
characteristics such as strength or color. In this work, we study the
computational control of the flash light in photographs taken with or without
flash. We present a physically motivated intrinsic formulation for flash
photograph formation and develop flash decomposition and generation methods for
flash and no-flash photographs, respectively. We demonstrate that our intrinsic
formulation outperforms alternatives in the literature and allows us to
computationally control flash in in-the-wild images.