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pfstmo_pattanaik00(1)	     General Commands Manual	   pfstmo_pattanaik00(1)

NAME
     pfstmo_pattanaik00 - Time-dependent Visual Adaptation Model

SYNOPSIS
     pfstmo_pattanaik00  [--time-dependence]  [--fps <val>] [--mul <multiplier>]
     [--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.  Pat-
     tanaik, J. Tumblin, H. Yee, and D.P. Greenberg.  In Proceedings of ACM SIG-
     GRAPH 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-depen-
	    dence 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  de-
	    fault.

     --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 im-
	    age.

     --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 format.

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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