public static RecognizerResult DetectFromImage(string ImagePath)
{
RecognizerResult Result = new RecognizerResult();
//Lay moi ten anh, ko lay toan bo duong dan
Result.ImageLink = System.IO.Path.GetFileName(ImagePath);
if (Haar == null)
{
Haar = new HaarCascade(HAAR_XML_PATH);
}
//Chuyen anh trang den roi bat dau recognize, dung using de tu giai phong memories
using (Image <Gray, byte> Image = new Image <Bgr, byte>(ImagePath).Convert <Gray, byte>())
{
var FacesDetected = Image.DetectHaarCascade(Haar, DETECT_SCALE, MIN_NEIGHBOR,
0, new System.Drawing.Size(MIN_SIZE, MIN_SIZE))[0];
foreach (var Face in FacesDetected)
{
FaceRegion FaceReg = new FaceRegion(Face.rect.X, Face.rect.Y,
Face.rect.Width, Face.rect.Height);
Result.FaceList.Add(FaceReg);
}
}
return(Result);
}
public RectangleF GetRegionBounds(FaceRegion region)
{
var points = Landmarks.Where(m => m.Region == region);
var xValues = points.Select(p => p.Coordinates.X);
var yValues = points.Select(p => p.Coordinates.Y);
if (!xValues.Any() || !yValues.Any())
{
return(RectangleF.Empty);
}
float xMin = xValues.Min();
float xMax = xValues.Max();
float yMin = yValues.Min();
float yMax = yValues.Max();
return(new RectangleF(xMin, yMin, xMax - xMin, yMax - yMin));
}
public static FaceRegion[] FindFaces(byte[] image)
{
IPlugin facefinder = null;
foreach (IPlugin plugin in Plugins.Instances)
{
if (plugin.Name == "FaceFinder")
{
facefinder = plugin;
break;
}
}
if (facefinder == null) return null;
Type faceFinderType = facefinder.GetType();
object results = faceFinderType.InvokeMember("FindFaces", BindingFlags.Default | BindingFlags.InvokeMethod,
null, facefinder, new object[] {image});
if (results == null)
{
Global.Logger.LogStatus("Plugins::FindFaces", "Application Pool is restarting...");
ApplicationPoolRecycle.RecycleCurrentApplicationPool();
return new FaceRegion[0];
}
List<FaceRegion> regions = new List<FaceRegion>();
foreach (object result in (IEnumerable) results)
{
Type faceRegionType = result.GetType();
FaceRegion region = new FaceRegion();
region.X = (int) faceRegionType.GetField("X").GetValue(result);
region.Y = (int) faceRegionType.GetField("Y").GetValue(result);
region.Width = (int) faceRegionType.GetField("Width").GetValue(result);
region.Height = (int) faceRegionType.GetField("Height").GetValue(result);
regions.Add(region);
}
return regions.ToArray();
}
private static RecognizerResult RecognizeFromImage(FaceRecognizer FaceRec, String ImagePath)
{
RecognizerResult Result = new RecognizerResult();
//Lay moi ten anh, ko lay toan bo duong dan
Result.ImageLink = System.IO.Path.GetFileName(ImagePath);
//Dua anh vao, dua ket qua ra
if (Haar == null)
{
Haar = new HaarCascade(HAAR_XML_PATH);
}
//Chuyen anh trang den roi bat dau recognize
Image <Bgr, byte> RawImage = new Image <Bgr, byte>(ImagePath);
Image <Gray, byte> Image = RawImage.Clone().Convert <Gray, byte>();
var FacesDetected = Image.DetectHaarCascade(Haar, DETECT_SCALE, MIN_NEIGHBOR,
0, new System.Drawing.Size(MIN_SIZE, MIN_SIZE))[0];
foreach (var Face in FacesDetected)
{
FaceRegion FaceReg = new FaceRegion(Face.rect.X, Face.rect.Y,
Face.rect.Width, Face.rect.Height);
//Nhan dien face la cua ai.
Image <Gray, byte> FaceImage = Image.Copy(Face.rect).Resize(TRAINING_DATA_SIZE,
TRAINING_DATA_SIZE, INTER.CV_INTER_CUBIC);
FaceImage._EqualizeHist();
FaceRecognizer.PredictionResult PR = FaceRec.Predict(FaceImage);
FaceReg.StudentID = PR.Label;
FaceReg.StudentName = GetUserName(PR);
Result.FaceList.Add(FaceReg);
}
return(Result);
}
