Description Usage Arguments Value References See Also Examples
Convert XYZ or Linear RGB to Signal RGB, multiple RGB spaces are available
1 2 3 | RGBfromXYZ( XYZ, space='sRGB', which='scene', TF=NULL, maxSignal=1 )
SignalRGBfromLinearRGB( RGB, space='sRGB', which='scene', TF=NULL, maxSignal=1 )
|
XYZ |
a numeric Nx3 matrix with CIE XYZ coordinates in the rows, or a vector that can be converted to such a matrix, by row.
The XYZ are assumed to be viewed under the white-point of the given RGB |
RGB |
a numeric Nx3 matrix with linear RGB coordinates in the rows, or a vector that can be converted to such a matrix, by row. The RGB may be outside the corresponding domain box (either scene or display), see Details. |
space |
the name of an installed RGB space. The name matching is partial and case-insensitive. |
which |
the input linear RGB - either |
TF |
if not |
maxSignal |
maximum value of non-linear |
a data.frame
with N rows and these columns
RGB |
signal RGB.
If |
OutOfGamut |
logical vector, TRUE means the input linear RGB was outside the domain box before clamping it. |
In case of error, the functions return NULL.
Wikipedia. RGB color space. https://en.wikipedia.org/wiki/RGB_color_space
XYZfromRGB()
,
LinearRGBfromSignalRGB()
,
installRGB()
,
identity.TF
1 2 3 4 | RGBfromXYZ( c(80.310897,90.306510,84.613450, 100,100,100)/100, max=255 )
## RGB.R RGB.G RGB.B OutOfGamut
## 1 230.1676 249.4122 225.2472 FALSE
## 2 255.0000 249.1125 244.4704 TRUE
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