Fig. 2. Examples of application of (a) Eq. [12], and (b) Eq. [13] to the binary image of Soil 7 for selected q values. Values of f(q) and (q) were obtained from the slope of plots similar to those in (a) and in (b), respectively. The plot of (q = -1.0) illustrates data that resulted in R² = 0.88, one of the lowest found in this study (R² for the rest of the plots can be found in Table 3).

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