Does IDKit return the best matching user or the first matching user?
IDKit always returns the best match. The whole database is internally sorted by similarity score. Similarity threshold and result count limit (candidate c...
Tue, 6 Aug, 2019 at 12:05 PM
How do I export/import single fingerprint template from user record (user template) that contains multiple fingerprints (fingerprint templates)?
Create new user record (IEngine_InitUser). Add particular fingerprint into newly created user record from your multi-fingerprint user record (IEngine_A...
Wed, 9 Sep, 2015 at 9:16 AM
How does IDKit handle ambiguity?
If there are multiple matches above the threshold, they are returned all, sorted by score, up to the results count limit (candidates count). It is up to the...
Tue, 6 Aug, 2019 at 12:05 PM
How do I join multiple single fingerprint templates into one user record (user template)?
In order to compose user record from individual exported single-fingerprint user templates (fingerprint templates), import them one by one into the one user...
Wed, 9 Sep, 2015 at 9:16 AM
What is the general error rate that can be expected from IDKit?
Error rates depend on many factors including scanner model, population, number of fingerprints per user, enrollment strategy (1 sample vs. more samples of t...
Tue, 6 Aug, 2019 at 12:05 PM
Why does IEngine_AddFingerprint fail with error IENGINE_E_BADIMAGE?
IEngine_AddFingerprint expects the image to be in one of the supported image formats. For example BMP format can be used. It is a common error to send raw i...
Mon, 23 Nov, 2015 at 1:29 PM
What' s the format of the user BLOB in IDKit database?
Data in the BLOB column is identical to the raw data you get when you export user template in ICS format. You can store the BLOB outside our database and th...
Wed, 9 Sep, 2015 at 9:16 AM
How do I acquire images from fingerprint scanners/readers for use in IDKit?
All our biometry SDKs are fingerprint scanner independent. The fingerprint "input" to our SDKs is fingerprint image. We recommend to use directly...
Tue, 19 Dec, 2017 at 12:48 PM
Why is DPI a global setting? How can we use fingerprints from different sources?
DPI setting affects only extraction, not identification (1:N match) nor verification (1:1 match). Extracted fingerprint templates remember the DPI setting u...
Wed, 9 Sep, 2015 at 9:17 AM
Function Fingerprint.GetImage doesn't work
This is most likely caused by disabled image storage. Set IDKit.StoreImages property to true before adding images to a user record.   
Wed, 9 Sep, 2015 at 9:17 AM