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pfstmo_pattanaik00(1)					 pfstmo_pattanaik00(1)

NAME
       pfstmo_pattanaik00 - Time-dependent Visual Adaptation Model

SYNOPSIS
       pfstmo_pattanaik00  [--time-dependence]	[--fps	<val>]	[--mul <multi‐
       plier>] [--local] [--cone <val>] [--rod <val>] [--verbose] [--help]

DESCRIPTION
       This command implements a tone mapping operator as described in:

       Time-Dependent Visual Adaptation for  Realistic	Image  Display.	  S.N.
       Pattanaik,  J.  Tumblin, H. Yee, and D.P. Greenberg.  In Proceedings of
       ACM SIGGRAPH 2000.

       This operator requires properly calibrated image data  (in  cd/m2)  and
       its results should be gamma corrected.

       The local version of this operator is based on the following paper:

       Adaptive	 Gain Control For High Dynamic Range Image Display.  S.N. Pat‐
       tanaik, H. Yee.	In proceedings of SCCG 2002.

OPTIONS
       --time-dependence, -t

	      Use time dependent model of adaptation. This should be used  for
	      tone  mapping  of	 an  animation. It has no influence on single-
	      frame input. Switched off by default.  Note: it is important  to
	      correctly set the speed of the input animation (--fps).

       --fps <val>, -f <val>

	      Speed  of	 input animation in frames per second. Used when time-
	      dependence is switched on (-t). Default value: 16.0

       --mul <multiplier>, -m <multiplier>

	      Multiply input values by a multiplier value.   Useful  if	 input
	      data is not calibrated. Default value: 1.0

       --local, -l

	      Use  local  version  of the tone mapping. Time-dependent effects
	      are cancelled while using local version, global version is  used
	      by default.

       --cone <val>, -c <val>

	      Set  the	adaptation  level for cones. If --rod parameter is not
	      used, this will also set	the  adaptation	 level	for  rods.  By
	      default,	the  adaptation	 level	is calculated as a logarithmic
	      average of luminance in the input image.

       --rod <val>, -r <val>

	      Set the adaptation level for rods. By  default,  the  adaptation
	      level is calculated as a logarithmic average of luminance in the
	      input image.

       --verbose

	      Print additional information during program execution.

       --help

	      Print list of command line options.

EXAMPLES
       pfsin memorial.hdr | pfstmo_pattanaik00 -m 650  |  pfsgamma  -g	2.2  |
       pfsout memorial.png
	      Tone  map image, apply gamma correction, and save it in png for‐
	      mat.

SEE ALSO
       pfsgamma(1) pfsin(1) pfsout(1) pfsview(1)

BUGS
       Please report bugs and comments on implementation to Grzegorz  Krawczyk
       <krawczyk@mpi-sb.mpg.de>.

							 pfstmo_pattanaik00(1)

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