pfstmo_mantiuk06 - Online in the Cloud

PROGRAM:

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.

Use pfstmo_mantiuk06 online using onworks.net services