Calibration method, electronic device, and non-transitory computer-readable storage medium

An electronic device, comprising:

• a fingerprint sensor;
• a processor;
• and
• a memory coupled to the processor and storing one or more programs;
• the one or more programs which, when executed by the processor, cause the processor to:
• perform fingerprint collection with the fingerprint sensor to obtain a first fingerprint image;
• determine a first numerical value according to the first fingerprint image, a first calibration image, and a second calibration image, wherein the first numerical value is indicative of a change in brightness of a light source for the fingerprint collection, the first calibration image is an image obtained by performing image collection on a bright surface of a calibration box, and the second calibration image is an image obtained by performing image collection on a dark surface of the calibration box;
• and
• calibrate the first fingerprint image according to the first numerical value to obtain a second fingerprint image.

A non-transitory computer-readable storage medium storing computer programs, wherein the computer programs, when executed by a processor, cause the processor to:

• perform fingerprint collection with a fingerprint sensor to obtain a first fingerprint image;
• determine a first numerical value according to the first fingerprint image, a first calibration image, and a second calibration image, wherein the first numerical value is indicative of a change in brightness of a light source for the fingerprint collection, the first calibration image is an image obtained by performing image collection on a bright surface of a calibration box, and the second calibration image is an image obtained by performing image collection on a dark surface of the calibration box;
• and
• calibrate the first fingerprint image according to the first numerical value to obtain a second fingerprint image.