internal TicoFeatures(IReadOnlyList <Minutia> minutiae, OrientationImage dImg)
{
Minutiae = new List <MinutiaDescriptor>(minutiae.Count);
for (short i = 0; i < minutiae.Count; i++)
{
var mtiaDescriptor = new MinutiaDescriptor(minutiae[i], dImg);
Minutiae.Add(mtiaDescriptor);
}
}
internal double Compare(MinutiaDescriptor mtiaDesc)
{
double sum = 0;
for (var i = 0; i < 72; i++)
{
var or1 = Orientations[i];
var or2 = mtiaDesc.Orientations[i];
if (!double.IsNaN(or1) && !double.IsNaN(or2))
{
var diffOr = Math.Abs(or1 - or2);
var difAng = 2 / Math.PI * diffOr;
sum += Math.Exp(-16 * difAng);
}
}
return(sum / 72);
}
