Performing simultaneous depth-of-field (DOF) extension and edge enhancement within a single optical element remains a fundamental challenge in advanced imaging. Here, we propose a wavelength-tunable nonlocal Huygens metasurface capable of simultaneously extracting depth and edge features of images in a single-shot exposure. Using the selective polarization response of the Huygens metasurfaces, the circularly polarized converted component undergoes geometric phase modulation for wave-front shaping to extend the DOF, while the nonconverted component acts as a spatial frequency filter to enhance edge contrast. The integration of a phase-change material, ${\mathrm{Sb}}_2{\mathrm{S}}_3$, enables continuous tuning of the resonance wavelength across a range of 100 nm by modulating its refractive index, granting the system excellent broadband spectral adaptability. This work offers a compact solution for real-time depth sensing and feature extraction in applications such as autonomous navigation and biomedical imaging.

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• Bound states in the continuum
• Nanophotonics
• Nonlocality
• Phase-change materials
• Polarization of light
• Chalcogenides
• Metasurfaces
• Imaging & optical processing