public static void AddSuperMatrixList(SuperMatrixType o)
{
// NOTE: Apply expiration parameters as you see fit.
// I typically pull from configuration file.
// In this example, I want an absolute
// timeout so changes will always be reflected
// at that time. Hence, the NoSlidingExpiration.
if (TrackSize)
{
_cacheSizeinKb += MemorySize.GetBlobSizeinKb(o);
}
cache.Add(
_superMatrixDataSet,
o,
DateTime.Now.AddMinutes(1440));
}
/// <summary>
/// Load the cache from the File
/// </summary>
/// <param name="fullFileName">File the full file path, else, it will try to load from default file if it exists</param>
/// <returns></returns>
public static void LoadRespositoryFromFile(SurfAlgo surfAlgo, string fullFileName = "")
{
string repoFileStoragePath = string.Empty;
string defaultRepoFileStorageName = surfAlgo == SurfAlgo.Linear ? "observerFeatureSets.bin" : "superMatrix.bin";
if (string.IsNullOrWhiteSpace(fullFileName))
{
repoFileStoragePath = Path.Combine(SaveDirectoryPath, defaultRepoFileStorageName);
}
else
{
repoFileStoragePath = fullFileName;
}
if (!File.Exists(repoFileStoragePath))
{
throw new ArgumentException(string.Format("Can't find Surf Repository file at {0} :", repoFileStoragePath));
}
FileStream stream = File.OpenRead(repoFileStoragePath);
var formatter = new BinaryFormatter();
if (surfAlgo == SurfAlgo.Linear)
{
List <SURFRecord2> observerFeatureSets = (List <SURFRecord2>)formatter.Deserialize(stream);
stream.Close();
AddSURFRecord2List(observerFeatureSets);
}
else if (surfAlgo == SurfAlgo.Flaan)
{
SuperMatrixType superMatrix = (SuperMatrixType)formatter.Deserialize(stream);
stream.Close();
AddSuperMatrixList(superMatrix);
}
//Polenter.Serialization.SharpSerializerBinarySettings st = new Polenter.Serialization.SharpSerializerBinarySettings(Polenter.Serialization.BinarySerializationMode.SizeOptimized);
//Polenter.Serialization.SharpSerializer serializer = new Polenter.Serialization.SharpSerializer(st);
//List<SURFRecord2> observerFeatureSets = (List<SURFRecord2>)serializer.Deserialize(repoFileStoragePath);
}
private static void SaveRepoForFlann()
{
if (!Exists(_superMatrixDataSet))
{
throw new InvalidOperationException("Can't save. Super Matrix not added to Repository");
}
SuperMatrixType superMatrix = GetSurfDataSet();
string exeDirectoryPath = Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location);
string repoFileStoragePath = Path.Combine(exeDirectoryPath, "superMatrix.bin");
File.Delete(repoFileStoragePath);
FileStream stream = File.Create(repoFileStoragePath);
var formatter = new BinaryFormatter();
formatter.Serialize(stream, superMatrix);
stream.Close();
//Polenter.Serialization.SharpSerializerBinarySettings st = new Polenter.Serialization.SharpSerializerBinarySettings(Polenter.Serialization.BinarySerializationMode.SizeOptimized);
//Polenter.Serialization.SharpSerializer serializer = new Polenter.Serialization.SharpSerializer(st);
//serializer.Serialize(featureSets, repoFileStoragePath);
}
public static void AddSuperMatrixList(SuperMatrixType o)
{
// NOTE: Apply expiration parameters as you see fit.
// I typically pull from configuration file.
// In this example, I want an absolute
// timeout so changes will always be reflected
// at that time. Hence, the NoSlidingExpiration.
if (TrackSize)
_cacheSizeinKb += MemorySize.GetBlobSizeinKb(o);
cache.Add(
_superMatrixDataSet,
o,
DateTime.Now.AddMinutes(1440));
}
public void IndexFiles(FileInfo[] imageFiles, System.ComponentModel.BackgroundWorker IndexBgWorker,
Action<string> logWriter,
SurfSettings surfSetting = null)
{
#region Surf Dectator Region
double hessianThresh = 500;
double uniquenessThreshold = 0.8;
if (surfSetting != null)
{
hessianThresh = surfSetting.HessianThresh.Value;
uniquenessThreshold = surfSetting.UniquenessThreshold.Value;
}
SURFDetector surfDectector = new SURFDetector(hessianThresh, false);
#endregion
int rows = 0;
Matrix<float> superMatrix = null;
List<SURFRecord1> observerSurfImageIndexList = new List<SURFRecord1>();
Stopwatch sw1, sw2;
sw1 = Stopwatch.StartNew();
logWriter("Index started...");
int totalFileCount = imageFiles.Length;
for (int i = 0; i < totalFileCount; i++)
{
var fi = imageFiles[i];
using (Image<Gray, byte> observerImage = new Image<Gray, byte>(fi.FullName))
{
VectorOfKeyPoint observerKeyPoints = new VectorOfKeyPoint();
Matrix<float> observerDescriptor = surfDectector.DetectAndCompute(observerImage, null, observerKeyPoints);
if (observerDescriptor.Rows > 4)
{
int initRow = rows; int endRows = rows + observerDescriptor.Rows - 1;
SURFRecord1 record = new SURFRecord1
{
Id = i,
ImageName = fi.Name,
ImagePath = fi.FullName,
IndexStart = rows,
IndexEnd = endRows
};
observerSurfImageIndexList.Add(record);
if (superMatrix == null)
superMatrix = observerDescriptor;
else
superMatrix = superMatrix.ConcateVertical(observerDescriptor);
rows = endRows + 1;
}
else
{
Debug.WriteLine(fi.Name + " skip from index, because it didn't have significant feature");
}
}
IndexBgWorker.ReportProgress(i);
}
sw1.Stop();
logWriter(string.Format("Index Complete, it tooked {0} ms. Saving Repository...", sw1.ElapsedMilliseconds));
SurfDataSet surfDataset = new SurfDataSet
{
SurfImageIndexRecord = observerSurfImageIndexList,
SuperMatrix = superMatrix
};
sw2 = Stopwatch.StartNew();
SurfRepository.AddSuperMatrixList(surfDataset);
SurfRepository.SaveRepository(SurfAlgo.Flaan);
sw2.Stop();
logWriter(string.Format("Index tooked {0} ms. Saving Repository tooked {1} ms", sw1.ElapsedMilliseconds, sw2.ElapsedMilliseconds));
}
