Figure 4
The image entropy during parameter optimisation for the numerical study. The three lines show reduced, central, increased regularisation strength. The dashed lines represent the abandoned reconstruction paths which exhibit a sub-optimal histogram entropy after image stabilisation. This figure shows ten optimisation steps with a total of 350 iterations. During optimisation, the tuning method approaches the minimum entropy. The upper part shows the current regularisation parameter applied during the respective optimisation step. This optimisation starts at \({\lambda }_{{\rm{init}}}=10\) and approaches \({\lambda }_{{\rm{opt}}}=60\).
