Fingerprint API

API that provides functions to scan, extract, and compare fingerprint template data.

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📄️BS2_ScanFingerprint

Scans a fingerprint from a device and extracts template data.

📄️BS2_ScanFingerprintEx

+ v2.5.0 Scans a fingerprint from a device and extracts template data and scan image scores.

📄️BS2_VerifyFingerprint

Compares the template data to check if it is the same finger.

📄️BS2_GetLastFingerprintImage

Extracts the image of the last scanned fingerprint using the BS2_ScanFingerprint API.

📄️BS2_GetFingerTemplateQuality

+ v2.6.4 Checks the quality score of the fingerprint from the fingerprint template data.

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Structure

BS2Fingerprint

typedef struct {
   uint8_t index;
   uint8_t flag;
   uint8_t reserved[2];
   uint8_t data[BS2_TEMPLATE_PER_FINGER][BS2_FINGER_TEMPLATE_SIZE];
} BS2Fingerprint;

1. index

   The index of finger. This is a flag that user can manage manually, not changing automatically. If you want to manage fingerprint index, please assign a number when you enroll fingerprint.

2. flag

   Flag that indicates the purpose of the fingerprint.

   Value	Description
   0	Normal fingerprint
   1	Duress fingerprint

3. reserved

   Reserved space.

4. data

   The data of fingerprint template.