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Fig. 2 | Plant Methods

Fig. 2

From: Quantitative assessment of disease severity and rating of barley cultivars based on hyperspectral imaging in a non-invasive, automated phenotyping platform

Fig. 2

Spectral signatures and abundance maps of healthy plant tissue and powdery mildew symptoms (mean values of 50 pixels, each). The spectral signatures (left) represent the mean reflectance of the pixels over the spectral measurement area of the sensor. The abundance map (right) shows the representation of the same mean values based on the abundance of the pixels with the 25 archetypes, which were selected during the transformation of the dataset with the Simplex Volume Maximization. Archetypes with high correlation to healthy or symptomatic tissue are shown separately, each archetype is a real spectral signature from the original hyperspectral dataset (colors of archetype spectral signatures represent the color of the corresponding pixels, which would be visible to the human eye). Pm powdery mildew

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Plant Methods

ISSN: 1746-4811