void BuildEdgeHash()
{
for (int referenceMinutia = 0; referenceMinutia < Template.Minutiae.Count; ++referenceMinutia)
{
for (int neighborMinutia = 0; neighborMinutia < Template.Minutiae.Count; ++neighborMinutia)
{
if (referenceMinutia != neighborMinutia)
{
var edge = new IndexedEdge()
{
Shape = new EdgeShape(Template, referenceMinutia, neighborMinutia),
Reference = referenceMinutia,
Neighbor = neighborMinutia
};
foreach (var hash in GetShapeCoverage(edge.Shape))
{
List <IndexedEdge> list;
if (!EdgeHash.TryGetValue(hash, out list))
{
EdgeHash[hash] = list = new List <IndexedEdge>();
}
list.Add(edge);
}
}
}
}
}
static Dictionary <int, List <IndexedEdge> > BuildEdgeHash(FingerprintTemplate template)
{
var map = new Dictionary <int, List <IndexedEdge> >();
for (int reference = 0; reference < template.Minutiae.Length; ++reference)
{
for (int neighbor = 0; neighbor < template.Minutiae.Length; ++neighbor)
{
if (reference != neighbor)
{
var edge = new IndexedEdge(template.Minutiae, reference, neighbor);
foreach (int hash in ShapeCoverage(edge))
{
List <IndexedEdge> list;
if (!map.TryGetValue(hash, out list))
{
map[hash] = list = new List <IndexedEdge>();
}
list.Add(edge);
}
}
}
}
// https://sourceafis.machinezoo.com/transparency/edge-hash
FingerprintTransparency.Current.LogEdgeHash(map);
return(map);
}