Robustness of each user-defined parameter on a typical image Robustness. The user-defined parameters are individually perturbed while keeping the other two constant. (A) Parameter lowc (the expert user determined value is 10) (B) Parameter lowi (the expert user determined value is 260) (C) Parameter psize (the expert user determined value is 20). The X-axis shows the perturbation from the expert user-defined value and the Y-axis shows the deviation of the resulting quantification outputs from the 0% perturbation-derived ones. It is important to note that the flatter the lines, the more robustness the parameter is.