Supplement Number 1

The supplementary material provides a comprehensive explanation of the methodology and supplementary simulations, organized into the following eight sections: (1) Digital neural network training; (2) Calibration and translation operations; (3) Metasurface fabrication; (4) Numerical simulation of the metasurface; (5) Optical setup; (6) Optimization procedure of kernel numbers; (7) Analysis of scattering media effects; and (8) Simulation of the EMNIST upper-case letters and sign language digits dataset.