Figure 7

Visualization of the speed function. A surface plot of 1 - k _I (inverted for ease of interpretation) computed by using the image in Figure 6(b) for $\overline{N}$ in Equation 11. Areas close to the desired contour of the corpus luteum boundary are red in colour, indicating that the evolution of ψ will slow and eventually stop near the true contour of the corpus luteum.