Fig 1.
Image comparison of healthy seeds with infected seeds.
Seeds on image were infected by black point disease (Alternaria sp.) and Fusarium sp. (A) RGB-captured images. (B) nCDA-transformed images. (C) RGB images after seed incubation.
Fig 2.
Reflection intensity between different infection/unifications.
Separation spectrum of infected and uninfected ROI parts of the seeds regarding mean reflection intensity at different wavelengths.
Fig 3.
Blob tool database report of varieties separation regarding species, color and size of seeds.
Varieties were separated by Region MSIMean1_all (nCDA created feature) and Length (mm). Agostino (green) is a triticale variety with long green seeds; Be_Giran is representing triticale varieties with long yellowish seeds and Lucija a group of winter wheat varieties with small yellowish seeds.
Fig 4.
Example of successful separation of winter wheat.
Varieties were separated by intensity and nCDA-created features from multispectral imaging (MSIMean): Pannonikus (red square), Panonic NS (green), Jana (blue), Lucija (orange), Euclide (violet), Soissons (pink), Energo (red triangle).
Table 1.
Confusion matrix of varieties and groups of varieties.
Fig 5.
PCA plot of randomly chosen wheat varieties.
PCA score plot on Jana (red), Angelus (blue), Super žitarka (yellow) and Pannonikus (green) where PC 3 shows a clear separation between Jana and Pannonikus and also between Jana and Angelus.