Vegetation Extraction

For vegetation extraction (including cropland), only PBC was performed since it achieved a great accuracy, approximately close to 1. From Figure 5 we see that the distribution of vegetation and cropland is coherent in the study area, apart from some urban environments, which are marked by intense non-vegetation pixels, in particular these areas are in the south and the northeast of the study area. According to Table 3, both global and interclass accuracy indices are very close to 1, this indicates a high probability of a correct classification of each individual pixel, and a great overall agreement level with the ground truth. Besides a good performance and good training of the PBC method, the distinction between the vegetated area and non-vegetation is very significant, and therefore, it is easy to classify.

**Table 3.** Accuracy assessment of PBC vegetation (including cropland) extraction.


**Figure 5.** Level 1: PBC vegetation (including cropland) extraction results.
