Fig. 6.

$R$ and $S$ are affected by large magnification changes. Three samples with different muscle condition were imaged. To assess the effect of magnification, the same area was imaged with one objective lens ($40\times$) and six different zoom values from 1 to 6. The plots show the scores expressed in %, with the $6\times$ magnification results taken as 100%. $R$ and $S$ decrease gradually as a function of magnification. The changes vary among different samples and are stronger between $6\times$ and $3\times$ (26% average decrease for $R$; 19% for $S$). The results are also presented in Table 2.