Flash photography enhancement via intrinsic relighting

Our technique enhances photographs shot in dark environments by combining a picture taken with the available light and one taken with the flash. We preserve the ambiance of the original lighting and insert the sharpness. We use the bilateral filter to decompose the images into detail and large scale. We reconstruct the image using the large scale of the available lighting and the detail of the flash. We detect and correct flash shadow. Our output combines the advantages of available illumination and flash photography.

@Article { ED04a,
  author       = "Eisemann, Elmar and Durand, Fredo",
  title        = "Flash photography enhancement via intrinsic relighting",
  journal      = "ACM Transactions on Graphics (Proc. of SIGGRAPH)",
  volume       = "23",
  year         = "2004",
  note         = "publisher: ACM Press",
  url          = "http://graphics.tudelft.nl/Publications-new/2004/ED04a"
}