Research Article
Image Analysis to Estimate Mulch Residue in Soil
Table 3
Comparison of the soil area percentage values obtained by thresholding methods (Otsu (OT), Ridler-Calvard (RC), manual threshold (MT), and local entropy (LE)) with the reference area (). The comparison was analyzed with a paired 2-tailed Student’s -test and a paired 2-tailed Wilcoxon nonparametric test in case of LE.
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
In bold the pair of methods that present significant differences in the areas at level . S.D. (Dif.): standard deviation of the mean difference. |