Skip to main content
. 2018 Aug 24;9:1182. doi: 10.3389/fpls.2018.01182

Figure 1.

Figure 1

Two steps of creating vegetation binary mask, step I: segmentation of vegetation pixels from background using spectral indices (normalized difference vegetation index and excessive green index), and step II: filtering of mixed pixels at leaf edges using morphological operation (erosion with a 3 × 3 matrix of ones as structuring element).