xyz2lab(xyz, illuminant='D65', observer='2')
By default Observer= 2A, Illuminant= D65. CIE XYZ tristimulus values x_ref=95.047, y_ref=100., z_ref=108.883. See function get_xyz_coords
for a list of supported illuminants.
The image in XYZ format. Final dimension denotes channels.
The name of the illuminant (the function is NOT case sensitive).
The aperture angle of the observer.
If :None:None:`xyz` is not at least 2-D with shape (..., 3).
If either the illuminant or the observer angle is unsupported or unknown.
The image in CIE-LAB format. Same dimensions as input.
XYZ to CIE-LAB color space conversion.
>>> from skimage import dataSee :
... from skimage.color import rgb2xyz, xyz2lab
... img = data.astronaut()
... img_xyz = rgb2xyz(img)
... img_lab = xyz2lab(img_xyz)
The following pages refer to to this document either explicitly or contain code examples using this.
skimage.color.colorconv.xyz2lab
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