Fig. 2 | Scientific Data

Fig. 2

From: Pixel to practice: multi-scale image data for calibrating remote-sensing-based winter wheat monitoring methods

Fig. 2

Variability in the appearance of wheat canopies across sites as documented in ground-based high-resolution images at early growth stages. Images are from different measurement dates that correspond to growth stages 20–33 (cf. Fig. 1). The left tile of each image shows the original image, the middle tile is the vegetation - soil mask overlaid on the original image, the right tile shows the final pixel classification into soil background, and green, chlorotic, and necrotic vegetation. (a) Nennigkofen1, (b) Treytorrens-Payerne, (c) Oleyres, (d) Volken, (e) Opfertshofen, (f) Villars-le-Grand, (g) Steinmaur, (h) Nennigkofen2, (i) Grafenried.

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