Image Details
Caption: Figure 6.
Result of GAN approximation (bottom row) of real images (top row) as a function of AR center heliocentric angle (﹩{\cos }^{-1}\mu ﹩). The two-dimensional histogram in the right panel shows that the reconstruction loss (i.e., the mean squared error between real and GAN-approximated images) increase when the AR moves toward the solar limb.
© 2026. The Author(s). Published by the American Astronomical Society.