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pfstmo_mantiuk06(1) [debian man page]

pfstmo_mantiuk06(1)					      General Commands Manual					       pfstmo_mantiuk06(1)

NAME

       pfstmo_mantiuk06 - Tone mapping in the contrast domain

SYNOPSIS

       pfstmo_mantiuk06 [--factor <val>] [--equalize-contrast <val>] [--saturation <val>] [--verbose] [--quiet] [--help]

DESCRIPTION

       This  command  implements  two  tone  mapping  operators: contrast mapping and contrast equalization. Both operators can produce very sharp
       images (sometimes non-photorealistic) while minimizing contrast reversal (halo artifacts). More information on these operators can be found
       in:

	      Rafal Mantiuk, Karol Myszkowski, Hans-Peter Seidel.
	      A Perceptual Framework for Contrast Processing of High Dynamic Range Images
	      In: ACM Transactions on Applied Perception 3 (3), pp. 286-308, 2006.
	      http://www.mpi-inf.mpg.de/~mantiuk/contrast_domain/

       This version contains several performance improvements made by Ed Brambley.

       If you find this TMO useful in your research project, please cite the paper above.

       The result of this TMO requires gamma correction.

OPTIONS

       --equalize-contrast <val>, -e <val>
	      Use  the contrast equalization algorithm. If this option is not specified, the contrast mapping algorithm will be used. The contrast
	      equalization algorithm requires scaling parameter that controls the amount sharpenning, which can range from 0.1 (very sharp)  to  1
	      (less sharp).

	      contrast equalization results in very sharp, but also less natural images. contrast equalization may also enhance noise in low-qual-
	      ity images.

       --factor <val>, -f <val>
	      Contrast scaling factor (values 0-1) determines how much contrast magnitudes should be reduced. This  option  cannot  be	used  with
	      equalize-contrast. The lower value results in a sharper image. Default value: 0.3

       --saturation <val>, -s <val>
	      Saturation correction (values 0-1). The lower value results in stronger desaturation. Default value: 0.8

       --verbose, -v
	      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_mantiuk06 -f 0.5 | pfsgamma -g 2.2  | pfsout memorial.png

	      Tone map an image using contrast mapping and save it in the PNG format.

       pfsin memorial.hdr | pfstmo_mantiuk06 -e 0.5 | pfsgamma -g 2.2  | pfsout memorial.png

	      The same as above, but use the contrast equalization algorithm.

       pfsin memorial.hdr | pfstmo_mantiuk06 -f 0.5 -s 1 | pfsview

	      For  optimal  results  you  can  output  the  result to pfsview and manually adjust the dynamic range window. Then save the image in
	      pfsview by selecting 'Save image...' from the 'Frame' menu or pressing 's'.

       pfsin bridge.jpg --linear |  pfsclamp --min 0.007 | pfstmo_mantiuk06 | pfsview

	      Enhance the low-dynamic range image 'bridge' and view the result. pfsclamp command reduces noise for low code values.

SEE ALSO

       pfsgamma(1) pfsclamp(1) pfsin(1) pfsout(1) pfsview(1)

BUGS

       Please report bugs and comments to the pfstools discussion group (http://groups.google.com/group/pfstools).

															       pfstmo_mantiuk06(1)

Check Out this Related Man Page

pfstmo_reinhard02(1)					      General Commands Manual					      pfstmo_reinhard02(1)

NAME

       pfstmo_reinhard02 - Photographic Tone Reproduction for Digital Images

SYNOPSIS

       pfstmo_reinhard02  [--scales] [--key <val>] [--phi <val>] [--range <val>] [--lower <val>] [--upper <val>] [--temporal-coherent] [--verbose]
       [--help]

DESCRIPTION

       This command implements a tone mapping operator as described in:

       Photographic Tone Reproduction for Digital Images.  E. Reinhard, M. Stark, P. Shirley, and J. Ferwerda.	In ACM Transactions  on  Graphics,
       2002.

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

OPTIONS

       [--scales]

	      Use scales to calculate local adaptation. That means: use local version of this operator. By default, global version is used.

       [--key <val>]

	      Set key value for the image (refer to paper for details).  Default value: 0.18, accepted range <0..1>.

       [--phi <val>]

	      Set phi value (refer to paper for details).  Default value: 1.0, accepted range >=0.0.

       [--range <val>]

	      Set range size (refer to paper for details).  Default value: 8, accepted range >1.

       [--lower <val>]

	      Set lower scale size (refer to paper for details).  Default value: 1, accepted range >=1.

       [--upper <val>]

	      Set upper scale size (refer to paper for details).  Default value: 43, accepted range >=1.

       [--temporal-coherent], [-t]

	      When  this option is specified, tone mapping is time coherent for video sequences. Currently the option imposes that the average and
	      maximum luminance value can change at most by 1% between two consecutive frames.

       --verbose

	      Print additional information during program execution.

       --help

	      Print list of commandline options.

EXAMPLES

       pfsin memorial.hdr | pfstmo_reinhard02 -s | 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_reinhard02(1)
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