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. 2016 Nov 15;16(11):1915. doi: 10.3390/s16111915

Figure 6.

Figure 6

Performance of the algorithm for different threshold values: (a) in the region of reasonable values; (b) for ranges up to the size of the images. In both cases, values nearer to one indicate better performance. Higher R2 values indicate better precision, and a slope nearer to one indicates better accuracy, compared to the harvest fruit counts for the 16 target trees.