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POFinger Print recognition system
 

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  1. POFinger Print recognition system
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    <p>i m using vs2008 and SourceAFIS 1.1 i m unable to access any of the methods may someone help me getting started they(SourceAFIS) gave us the following sample as Program.cs i want to develope an application which firstly Enrolls users and then identify them if they are enrolled user or not.</p> <pre><code>namespace Sample { public class Program { // Inherit from Fingerprint in order to add Filename field [Serializable] class MyFingerprint : Fingerprint { public string Filename; } // Inherit from Person in order to add Name field [Serializable] class MyPerson : Person { public string Name; } // Initialize path to images static readonly string ImagePath = Path.Combine(Path.Combine("..", ".."), "images"); // Shared AfisEngine instance (cannot be shared between different threads though) static AfisEngine Afis; // Take fingerprint image file and create Person object from the image static MyPerson Enroll(string filename, string name) { Console.WriteLine("Enrolling {0}...", name); // Initialize empty fingerprint object and set properties MyFingerprint fp = new MyFingerprint(); fp.Filename = filename; // Load image from the file, fp.BitmapImage makes a copy of the image, so that we can dispose it afterwards Console.WriteLine(" Loading image from {0}...", filename); using (Image fromFile = Bitmap.FromFile(filename)) using (Bitmap bitmap = new Bitmap(fromFile)) fp.BitmapImage = bitmap; // Above update of fp.BitmapImage initialized also raw image in fp.Image // Check raw image dimensions, Y axis is first, X axis is second Console.WriteLine(" Image size = {0} x {1} (width x height)", fp.Image.GetLength(1), fp.Image.GetLength(0)); // Execute extraction in order to initialize fp.Template Console.WriteLine(" Extracting template..."); Afis.Extract(fp); // Check template size Console.WriteLine(" Template size = {0} bytes", fp.Template.Length); // Initialize empty person object and set its properties MyPerson person = new MyPerson(); person.Name = name; // Add fingerprint to the person person.Add(fp); return person; } static void Main(string[] args) { // Initialize SourceAFIS Afis = new AfisEngine(); // Enroll some people List&lt;MyPerson&gt; database = new List&lt;MyPerson&gt;(); database.Add(Enroll(Path.Combine(ImagePath, "candidate1.tif"), "Fred Flintstone")); database.Add(Enroll(Path.Combine(ImagePath, "candidate2.tif"), "Wilma Flintstone")); database.Add(Enroll(Path.Combine(ImagePath, "candidate3.tif"), "Barney Rubble")); // Save the database to disk and load it back, just to try out the serialization BinaryFormatter formatter = new BinaryFormatter(); Console.WriteLine("Saving database..."); using (Stream stream = File.Open("database.dat", FileMode.Create)) formatter.Serialize(stream, database); Console.WriteLine("Reloading database..."); using (FileStream stream = File.OpenRead("database.dat")) database = (List&lt;MyPerson&gt;)formatter.Deserialize(stream); // Enroll visitor with unknown identity MyPerson probe = Enroll(Path.Combine(ImagePath, "probe.tif"), "Visitor #12345"); // Look up the probe using Threshold = 10 Afis.Threshold = 10; Console.WriteLine("Identifying {0} in database of {1} persons...", probe.Name, database.Count); MyPerson match = Afis.Identify(probe, database); // Null result means that there is no candidate with similarity score above threshold if (match == null) { Console.WriteLine("No matching person found."); return; } // Print out any non-null result Console.WriteLine("Probe {0} matches registered person {1}", probe.Name, match.Name); // Compute similarity score float score = Afis.Verify(probe, match); Console.WriteLine("Similarity score between {0} and {1} = {2:F3}", probe.Name, match.Name, score); } } </code></pre>
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    1. COare you getting any error? or are you asking for sample code?
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    2. COactulally i am unable to use functionalities provided by SourceAFIS(SDK) and yes i am asking for some example code so that i can develope application, and thanks for reply :)
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