08-07-2017
Hello Andrew,
My fault, I meant just "sharp". The word "sharp" itself is already indicating the time.
I am gonna check it and leave my comment here after then.
Many thanks
Boris
Last edited by baris35; 08-07-2017 at 11:16 AM..
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LEARN ABOUT DEBIAN
pfstmo_mantiuk06
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)