public void IndexFiles(FileInfo[] imageFiles, BackgroundWorker IndexBgWorker, object argument = null)
{
List<PHashImageRecord> listOfRecords = new List<PHashImageRecord>();
string compressHash = string.Empty;
int totalFileCount = imageFiles.Length;
for (int i = 0; i < totalFileCount; i++)
{
var fi = imageFiles[i];
using (Bitmap bmp = new Bitmap(Image.FromFile(fi.FullName)))
{
compressHash = SimilarImage.GetCompressedImageHashAsString(bmp);
}
PHashImageRecord record = new PHashImageRecord
{
Id = i,
ImageName = fi.Name,
ImagePath = fi.FullName,
CompressHash = compressHash
};
listOfRecords.Add(record);
IndexBgWorker.ReportProgress(i);
}
BinaryAlgoRepository<List<PHashImageRecord>> repo = new BinaryAlgoRepository<List<PHashImageRecord>>();
repo.Save(listOfRecords);
}
public void IndexFilesAsync(FileInfo[] imageFiles, BackgroundWorker IndexBgWorker, object argument = null)
{
ConcurrentBag<PHashImageRecord> listOfRecords = new ConcurrentBag<PHashImageRecord>();
string compressHash = string.Empty;
int totalFileCount = imageFiles.Length;
int i = 0; long nextSequence;
//In the class scope: long nextSequence;
Object lockMe = new Object();
Parallel.ForEach(imageFiles, currentImageFile =>
{
var fi = currentImageFile;
using (Bitmap bmp = new Bitmap(Image.FromFile(fi.FullName)))
{
compressHash = SimilarImage.GetCompressedImageHashAsString(bmp);
}
lock (lockMe)
{
nextSequence = i++;
}
PHashImageRecord record = new PHashImageRecord
{
Id = nextSequence,
ImageName = fi.Name,
ImagePath = fi.FullName,
CompressHash = compressHash
};
listOfRecords.Add(record);
IndexBgWorker.ReportProgress(i);
});
BinaryAlgoRepository<List<PHashImageRecord>> repo = new BinaryAlgoRepository<List<PHashImageRecord>>();
repo.Save(listOfRecords.ToList());
}