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-quality 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 0-2). 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)