Login or Register to Ask a Question and Join Our Community

Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

pfstmo_pattanaik00(1) [suse man page]

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. 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. Pattanaik, 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 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)

Check Out this Related Man Page

pfstmo_durand02(1)					      General Commands Manual						pfstmo_durand02(1)

NAME

       pfstmo_durand02 - Fast bilateral filtering for the display of HDR images

SYNOPSIS

       pfstmo_durand02 [--sigma-s <val>] [--sigma-r <val>] [--base-contrast <val>] [--quiet] [--verbose] [--help]

DESCRIPTION

       This command implements a tone mapping operator as described in:
	      F. Durand and J. Dorsey.
	      Fast Bilateral Filtering for the Display of High-Dynamic-Range Images.
	      In: In ACM Transactions on Graphics, 2002.

       According to paper, results of this TMO require gamma correction.

       Unless -g option is specified, this operator also employs color correction mechanism from:
	      Radoslaw Mantiuk, Rafal Mantiuk, Anna Tomaszewska, Wolfgang Heidrich.
	      Color Correction for Tone Mapping.
	      In: Computer Graphics Forum (Proc. of EUROGRAPHICS'09), 28(2), 2009.
	      http://zgk.wi.ps.pl/color_correction/

OPTIONS

       --sigma-s <val>, -s <val>
	      Sigma value for spatial kernel. Default value: 40

       --sigma-r <val>, -r<val>
	      Sigma value for range kernel. Default value: 0.4

       --base-contrast <val>, -c <val>
	      Contrast	of  the  base layer. Default value is 5.0f. Lower value causes higher contrast compression and results in darker picture -
	      can help if after tone mapping too many pixels remain saturated.

	      Increasing this value will results in brighter and more 'dynamic' picture.

       --original, -g
	      Use original algorithm as described in the paper with no extensions. For this operator the switch will disable color correction.

       --verbose
	      Print additional information during program execution.

       --quiet, -q
	      Do not display progress report.

       --help, -h
	      Print list of commandline options.

EXAMPLES

       pfsin memorial.hdr | pfstmo_durand02 | pfsgamma -g 2.2 | pfsout memorial.png
	      Tone map image 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_durand02(1)
Man Page