Automatic Characterization of the Visual Appearance of Industrial Materials through Colour and Texture Analysis: An Overview of Methods and Applications

Table 2

Robustness to noise factors and computing time. A tick indicates that the method is robust to the corresponding noise factor. Low, medium, and high computing time are indicated as ∙, ∙ ∙, and ∙ ∙∙, respectively.

Class	Method	Noise factor				Computing time
		Change in illumination intensity	View point change	Rotation	Scale
Spectral	R, G, B, means		✓	✓	✓	∙
	Colour histogram		✓	✓	✓	∙ ∙
	Chromaticity moments		✓	✓	✓	∙ ∙
	Colour centiles		✓	✓	✓	∙
Spatial	GLCM	✓		✓		∙ ∙
	LBP^ri8,1	✓		✓		∙
	CCR^ri8,1			✓		∙ ∙
	Gabor filters			✓		∙ ∙
Hybrid	OCLBP^ri8,1	✓		✓		∙ ∙
	Integrative CM			✓		∙ ∙
	Ranklets	✓		✓		∙ ∙∙
	LBP^ri8,1 + colour centiles			✓		∙