Demonstration of the output of random scan acquisition and inpainting reconstruction for atomically resolved EELS elemental mapping: (a) HAADF Image of the region of interest (189 × 200 pixels in the red bordered square) at the interface between two oxide crystals LaAlO₃/NdNiO₃; (b) definition of the randomly selected 20% pixels over the region of interest; (c) example of an individually acquired EELS spectrum on the LaAlO₃ area, exhibiting two characteristic edges O-K and La-M₄₅, acquisition time is 10 ms so that the spectrum is rather noisy; (d) elemental maps, represented in an arbitrary color scheme (La (cyan)-Ni (green)-Nd (red)), obtained after inpainting of the randomly selected 20% spectra; (e) individual spectrum obtained after inpainting for a non-directly acquired spectrum (courtesy of Nathalie Brun).