exrpptm(1) General Commands Manual exrpptm(1)NAME
exrpptm - performs tone mapping on an OpenEXR image (photoreceptor)
SYNOPSIS
exrpptm [options] input.exr output.exr
DESCRIPTION
Performs the tone mapping function described in this paper:
Erik Reinhard and Kate Devlin. Dynamic Range Reduction Inspired by Photoreceptor Physiology. IEEE Transactions on Visualization and Com-
puter Graphics (2004).
The input image should be normalized, and the output file returned by this function should also be normalized before viewing.
OPTIONS -f Controls the intensity of the resulting image. Valid range is from -8 to 8, defaulting to 0.
-m Controls the contrast of the resulting image. Valid range is from 0.3 to 1.0. The default value of 0 uses an algorithm to calcu-
late an appropriate m factor for the image based on its luminance.
-c Amount of chromatic adaptation to apply to the image. Valid range is from 0 meaning no chromatic adaptation to 1 meaning fully
adapted. Defaults to 0.
-a Controls the light adaptation. Valid range is from 0 meaning that the adaptation is global to 1 meaning that the adaptation is
based on pixel intensity. Defaults to 1, to trade detail visibility for contrast.
AUTHORS
Billy Biggs <vektor@dumbterm.net>.
SEE ALSO exrtools(1).
exrtools 0.4 December 2003 exrpptm(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)
Hi:
We are trying to use UNIX Print Controls for our ERP Package. We have currently set up escape codes on some ERP Users for specific reports. However we would like to try to control this using DG Unix functionality that allows different printers to be set up for one physical printer. Example,... (0 Replies)
can some one please tell the meaning of the second statement i.e
n=${m#*=}
i couldnt get the meaning of the #*=
1.) m="mohit=/c/main/issue"
echo $m
result
-----------
mohit=/c/main/issue
2.) n=${m#*=}
echo $n
RESULT
-------
/c/main/issue (1 Reply)
Hello Guys,
I'm new in programing line & just started from C++ programs but i don't know the meaning of #include<stdio.h> file....Guys tell me what's the working of this file in C++ program?? I'm confused...
Title changed: Please use a descriptive subject text, and not C++?? (3 Replies)