Left: relative difference between the disc fractions of AR obtained on the images processed with our method and on the original undegraded images of subset 8. Disc fractions are shown separately for plage (blue), and network (red), as well as for their sum (green). The features were identified with constant thresholds. The solid lines are 100 point averages and the shaded areas show the asymmetric 1σ intervals. Right: distribution of the relative difference values.
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