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Figure 1:
Part of the speckle reconstructed G-band image used
for this study, showing the active region NOAA0 10636
at |
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Figure 2: Radially averaged power spectrum of the image under study (cf., Fig. 1); upper panel: raw image with reasonable noise level; lower panel: mean power of reconstructed sub-images with different filtering before their composition. |
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Figure 3: Diameter histogram for 954 intergranular G-band bright points for the two low-pass filters with different cut-off affecting the power spectra shown in Fig. 2. |
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Figure 4: Diameter histogram for the intergranular G-band bright points detected after low-pass filtering with the Gauss filter with artificial segmentation of elongated structures. |
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