1. An electronic device comprising: a finger biometric sensor comprising an array of electric field sensing pixels and image data output circuitry coupled thereto; a dielectric layer over the array of electric field sensing pixels and causing electric field diffusion having a diffusion function associated therewith so that the image data output circuitry generates image data corresponding to a blurred finger image; and deblurring circuitry coupled to the image data output circuitry and capable of storing a plurality of deblurring coefficients for a deblurring function, and processing the image data to produce processed image data representative of a deblurred finger image and in accordance with the deblurring function based upon the diffusion function.