Instructions

U.are.U SDK - Developer Guide 60
ActiveX
Accessing the FingerJet Engine
The FingerJet Engine interfaces provide functionality to
• Extract fingerprint features (create FMDs),
• Identify and compare FMDs, and
• Create enrollment FMDs.
Refer to Understanding the Data Flow on page 11 for a description of enrollment and comparison terminology and data
flow.
The UML diagram below shows the relevant classes:
Creating FMDs from images
The CreateFmdFromFid() method can be used in two ways:
1 Extract fingerprint minutiae from a raw image and create an FMD.
2 Extract fingerprint minutiae from an FID and create an FMD.
The following limitations are applied to the raw images and FIDs:
• 8 bits per pixel
• no padding
• square pixels (horizontal and vertical dpi are the same)
The size of the resulting FMD will vary depending on the minutiae in a specific fingerprint.