Illustration of simulation data used for training Deep-SANNE. (a) Synthetic brightness temperature map at λ = 1.25 mm at the original high resolution, at 1800 s from the start of the training simulation. (b) The same brightness temperature map degraded to the angular resolution corresponding to ALMA observations. The clean beam with an FWHM of 0.69 × 0.82 arcsec is marked in the lower left corner. (c) Difference between the degraded and the original map with absolute differences of up to 3200 K.