Automatic Characterization of the Visual Appearance of Industrial Materials through Colour and Texture Analysis: An Overview of Methods and Applications
Table 1
Method and related parameters.
Class
Method
Parameters
Spectral
R, G, B, means
None
Colour histogram
Number of quantization levels
Chromaticity moments
Number of quantization levels.
Colour centiles
Number of percentiles
Spatial
GLCM
Distance, co-occurrence directions
LBPri
Radius, number of pixels
CCRri
Radius, number of pixels, and thresholding method
Gabor filters
Number of frequencies, number of orientations, maximum frequency, width and length of the Gaussian envelope, and frequency ratio
Hybrid
OCLBPri
Radius, number of pixels
Integrative CM
Distance, co-occurrence directions
Ranklets
Radius, number of pixels
LBPri + colour centiles
Radius, number of pixels, and number of percentiles