Digital Visual Effect

High Dynamic Range Imaging

We take images of a static scene with different exposures. This is done by setting the camera on the tripod and connecting the camera to a notebook. A camera control program is used to set the aperture and the shutter speed. Given the set of images, we then implement the method in [1] to recover the radiance map and produce the HDR image accordingly. A tonemapping program is used to scale the HDR image into normal image with dynamic range 256.

Results:

You may need HDRShop to view HDR images.

Data Set 1:
input set (.zip), HDR result (.hdr)
tone mapped result:

 Data Set 2:
input set (.zip) HDR result (.hdr)
tone mapped result:

References:

  1. Paul E. Debevec, Jitendra Malik, "Recovering High Dynamic Range Radiance Maps from Photographs," SIGGRAPH 1997
  2. Tomoo Mitsunaga, Shree Nayar, "Radiometric Self Calibration," CVPR 1999
  3. Michael Grossberg, Shree Nayar, "Modeling the Space of Camera Response Functions," PAMI 2004