Using a Camera System for the In-Situ Assessment of Cordon Dieback due to Grapevine Trunk Diseases

Figure 7

A comparison of manually assessed and detected severity of grapevine trunk disease in test sets when using model 6 described in Table 2 for (a) images collected from Block 4 and (b) unseen vines in vineyards used for training the algorithm. Black bars indicate manually assessed severity and white bars show detected severity. A score of 0 represents no cordon dieback and a score of 50 represents no foliage present.

(a)

(b)