local-binary-pattern

local_binary_pattern

skimage.feature.local_binary_pattern(image, P, R, method='default') [source]

Gray scale and rotation invariant LBP (Local Binary Patterns).

LBP is an invariant descriptor that can be used for texture classification.

Parameters:

image : (N, M) array Graylevel image. P : int Number of circularly symmetric neighbour set points (quantization of the angular space). R : float Radius of circle (spatial resolution of the operator). method : {‘default’, ‘ror’, ‘uniform’, ‘var’} Method to determine the pattern. ‘default’: original local binary pattern which is gray scale but not rotation invariant. ‘ror’: extension of default implementation which is gray scale and rotation invariant. ‘uniform’: improved rotation invariance with uniform patterns and finer quantization of the angular space which is gray scale and rotation invariant. ‘nri_uniform’: non rotation-invariant uniform patterns variant which is only gray scale invariant [R153]. ‘var’: rotation invariant variance measures of the contrast of local image texture which is rotation but not gray scale invariant.

Returns:

output : (N, M) array LBP image.

References

[R152]

Multiresolution Gray-Scale and Rotation Invariant Texture Classification with Local Binary Patterns. Timo Ojala, Matti Pietikainen, Topi Maenpaa. http://www.rafbis.it/biplab15/images/stories/docenti/Danielriccio/Articoliriferimento/LBP.pdf, 2002.

[R153]

(1, 2) Face recognition with local binary patterns. Timo Ahonen, Abdenour Hadid, Matti Pietikainen, http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.214.6851, 2004.