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Fig. 10.

image

Influence of the regularization on the REXPACO reconstructions. xgt (1st column) is the ground truth elliptical disk injected at the level of flux αgt = 1 × 10−5. The flux distribution is reconstructed with a slight amount of regularization (μ → 0+; 2nd column), with μMSE derived by minimizing the optimal MSE criterion (3rd column, see Eq. (20)) and its estimate through the SURE criterion (4th column, see Eq. (23)). Bottom panel: zooms on two regions of interest (ROIs) extracted from the reconstructions given in the top panel. Data set: HIP 80019, see Sect. 3.3.1 for observing conditions.

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