Fig. 2
From: Operational solar flare prediction model using Deep Flare Net
Full solar disk vector magnetograms taken by HMI/SDO on 6 September 2017. a HMI definitive series data for the full disk and the areas detected by DeFN with red frames. b HMI NRT data showing the HARP areas in gray scale and the areas detected by DeFN. Note that both HARP and DeFN areas overlapped each other. If DeFN areas are outside the HARP areas, the data are set to zero