DPI setting affects only extraction, not identification (1:N match) nor verification (1:1 match). Extracted fingerprint templates remember the DPI setting used during extraction, i.e. search is DPI-independent. DPI setting should be set to correct value before extraction. Fingerprint template extraction is done during execution of IEngine_AddFingerprint method (in .NET during creation of Fingerprint object).
Why is DPI a global setting? How can we use fingerprints from different sources? Print
Modified on: Wed, 9 Sep, 2015 at 9:17 AM
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