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)