Nomenclature	Definition
F1	Dyed citrus blossom
F2	Safflower
F3	Mixed stamen and dyed straw
F4	Fiber
G1	Microwave-dried saffron
G2	Freeze-dried saffron and:
G3	Hot-air-dried saffron
RGB	Red, green, and blue color components, respectively
HSI	Hue, saturation, and intensity color components, respectively
L*a*b*	Luminance, the red-green axis, and the blue-yellow axis color components, respectively
RBF	Radial Basis Function
MLP	Multilayer Perceptron
KNN	K-nearest neighbor
SVM	Support vector machine
SOM	Self-organized map
LVQ	Learning vector quantization