This checkpoint was all about tone mapping high dynamic range images onto low dynamic range displays. The lmax value maximum possible luminance of the world- the original image is scaled by it before the operators are used. A display luminosity max of 100 was used.
Ward: (Perceptual)
Ward, lmax = 1
Ward, lmax = 1000
Ward, lmax=10000
Reinhard: (Photographic)
Reinhard, lmax = 1
Reinhard, lmax = 1000
Reinhard, lmax = 10000
Extras
Reinhard, lmax = 10000, key luminance = luminance at pixel (0,0)
Reinhard, lmax = 10000, key luminance = 0.1
Friday, February 13, 2009
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