LogRGB
Function
This is exactly like LogC, except you have access to control over
the individual channels. For more information, jump to LogC.
Parameters
|
Type
|
Defaults
|
Function
|
Offset |
float
|
0,0,0
|
These values offset the individual
color channels. |
black, white |
float
|
90, 685 |
These set the black and white cutoff points.
The default values are 95 and 685. |
nGamma |
float
|
.6 |
The film negative gamma. The default is
.6, as per the standard Kodak specification. Generally, this number
is not touched, unless you use a non-standard film stock. |
dGamma |
float
|
1 |
The display gamma to compensate for the
monitor's lookup table. By default, this number is 1. |
softClip |
float
|
0 |
The rolloff values on the white point.
Default is 0, which gives a Linear break. By increasing this value,
you smooth the curve out. |
Synopsis
image LogRGB( image,
float rOffset,
float gOffset,
float bOffset,
float rBlack,
float gBlack,
float bBlack,
float rWhite,
float gWhite,
float bWhite,
float rNGamma,
float gNGamma,
float bNGamma,
float rDGamma,
float gDGamma,
float bDGamma,
float rSoftClip,
float gSoftClip,
float bSoftClip,
);
Script
image = LogRGB( image,
rOffset, gOffset, bOffset,
rBlack, gBlack, bBlack,
rWhite, gWhite, bWhite,
rNGamma, gNGamma, bNGamma,
rDGamma, gDGamma, bDGamma,
rSoftClip, gSoftClip, bSoftClip
);
Command Line
shake -logrgb redOffset greenOffset blueOffset etc...
See Also
DelogC , LogC,
DelogRGB
|