Table 1 List of the empirical image-derived indices tested in the present study
From: Wheat grain width: a clue for re-exploring visual indicators of grain weight
Preliminary indices | Selected indices |
|---|---|
Area | Area |
Perimeter (Perim.) | Minor |
Major | MinFeret |
Minor | Area/perim |
Circularity (Circ.) | Area × Circ |
Feret | Minor/Solidity |
skewness (Skew) | MinF/Solidity |
kurtosis (Kurt) | Area × Solodity |
MinFeret (MinF) | Perim. × Circ |
Aspect ratio (AR) | A1 (Area × Perim. × Circ. × Solidity × MinF) |
Round | A2 (Area × Perim. × Circ. × Solidity × Minor) |
Solidity | Kim index |
Minor/Major | |
MinF/Feret | |
Area/MinF | |
Area/Minor | |
MinF/Minor | |
Area/perim | |
Minor/Perim | |
MinF/Perim | |
Area/(Perim.^2) | |
MinF × Area/Perim | |
Area/MinF | |
Area/Minor | |
Circ. × Solidity | |
Area × Circ | |
MinF × Circ | |
MinF/Solidity | |
Feret/Solidity | |
Area × Solodity | |
Feret × MinF × Solidity | |
Perim. × Circ | |
A1 (Area × Perim. × Circ. × Solidity × MinF) | |
A2 (Area × Perim. × Circ. × Solidity × Minor) | |
Kim index |