Results for Model #2-a.

<p>The fitness, (a), as a function of effective interior tissue permittivity, <i>ϵ</i>_<i>i</i>, and effective skin permittivity, <i>ϵ</i>_<i>s</i>, and (b) is the image formed using the most likely permittivity values, <i>ϵ</i>_<i>i</i> = 2.9 and <i>ϵ</i>_<i>s</i> = 17.8. The dashed circle represents the location of the tumor.