Open Access

Fig. 1.

image

Top panel: composite map of the solar corona on June 3, 2012, in the 171 Å (red), 193 Å (green), and 211 Å (blue) channels of the AIA instrument aboard SDO. The black and red squares correspond to the regions of interest used for testing the method, and are centred on an AR and a CH, respectively. Middle panel: zoom on the AR region of interest (black square in top panel). Bottom panel: zoom on the CH region of interest (red square in top panel).

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