luv2xyz
-
skimage.color.luv2xyz(luv, illuminant='D65', observer='2')
[source] -
CIE-Luv to XYZ color space conversion.
Parameters: luv : (M, N, [P,] 3) array_like
The 3 or 4 dimensional image in CIE-Luv format. Final dimension denotes channels.
illuminant : {“A”, “D50”, “D55”, “D65”, “D75”, “E”}, optional
The name of the illuminant (the function is NOT case sensitive).
observer : {“2”, “10”}, optional
The aperture angle of the observer.
Returns: out : (M, N, [P,] 3) ndarray
The image in XYZ format. Same dimensions as input.
Raises: ValueError
If
luv
is not a 3-D or 4-D array of shape(M, N, [P,] 3)
.ValueError
If either the illuminant or the observer angle are not supported or unknown.
Notes
XYZ conversion weights use observer=2A. Reference whitepoint for D65 Illuminant, with XYZ tristimulus values of
(95.047, 100., 108.883)
. See function ‘get_xyz_coords’ for a list of supported illuminants.References
[R46] http://www.easyrgb.com/index.php?X=MATH&H=16#text16 [R47] http://en.wikipedia.org/wiki/CIELUV
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