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Fig. 6

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Presentation of reconstruction results for small-scale structures. Top: reconstruction results of solar penumbral filaments. Middle: reconstruction results of solar umbra. Bottom: reconstruction results of solar granules. The HMI in the figure has undergone 4× upsampling. The first row in each image is the HMI image, the second row is the GST image, and the third to fifth rows are the reconstruction results of SAGAN, ICDDPM, and SDGAN for the small-scale structures of HMI images.

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