FaceDescriptor processImage(string path, string name, bool isPhoto)
{
Image <Bgr, byte> image = new Image <Bgr, byte>(path);
Rectangle realFace; Rectangle[] realEyes; Rectangle realMouth;
Rectangle[] faces; Rectangle[] eyes; Rectangle[] mouths;//placeholder for out, not important for query
faceDetection.faceAndLandmarks(image, out realFace, out realEyes, out realMouth, out faces, out eyes, out mouths);
if (realFace.Width == 0)
{
return(null);
}
var extendedFace = faceDetection.extendFace(image, realFace, faceDetection.faceOutline(image));
image = image.GetSubRect(extendedFace);
FaceDescriptor face = new FaceDescriptor(name);
realMouth.X += realFace.X - extendedFace.X;
realMouth.Y += realFace.Y - extendedFace.Y;
Point leftEye = new Point(); Point rightEye = new Point();
if (realEyes.Length == 2)
{
faceDetection.eyesCenter(realEyes, out leftEye, out rightEye);
leftEye.X += realFace.X - extendedFace.X;
leftEye.Y += realFace.Y - extendedFace.Y;
rightEye.X += realFace.X - extendedFace.X;
rightEye.Y += realFace.Y - extendedFace.Y;
if (isPhoto)
{
Point rotatedLeftEye; Point rotatedRightEye;
image = faceDetection.alignEyes(image, leftEye, rightEye, out rotatedLeftEye, out rotatedRightEye);
leftEye = rotatedLeftEye;
rightEye = rotatedRightEye;
realMouth = faceDetection.getMouth(
image.GetSubRect(
new Rectangle(new Point(0, 0), new Size((int)(image.Width * 0.9), (int)(image.Height * 0.9)))
));
}
}
Rectangle hair; Rectangle brow; Rectangle roiEyes; Rectangle nose;
faceDetection.faceROI(image, leftEye, rightEye, realMouth,
out hair, out brow, out roiEyes, out nose, out realMouth);
Image <Bgr, byte> hairImage; Image <Bgr, byte> browImage;
Image <Bgr, byte> eyesImage; Image <Bgr, byte> noseImage; Image <Bgr, byte> mouthImge;
roiToFixedImage(image, hair, brow, roiEyes, nose, realMouth,
out hairImage, out browImage, out eyesImage, out noseImage, out mouthImge);
face.HairHog = hogDescriptor.GetHog(hairImage, 32, 16);
face.BrowHog = hogDescriptor.GetHog(browImage, 32, 16);
face.EyesHog = hogDescriptor.GetHog(eyesImage, 32, 16);
face.NoseHog = hogDescriptor.GetHog(noseImage, 16, 8);
face.MouthHog = hogDescriptor.GetHog(mouthImge, 16, 8);
face.HairSift = siftDescriptor.ComputeDescriptor(hairImage, 24, 16);
face.BrowSift = siftDescriptor.ComputeDescriptor(browImage, 24, 16);
face.EyesSift = siftDescriptor.ComputeDescriptor(eyesImage, 24, 16);
face.NoseSift = siftDescriptor.ComputeDescriptor(noseImage, 8, 12);
face.MouthSift = siftDescriptor.ComputeDescriptor(mouthImge, 12, 8);
face.processDescriptors();
return(face);
}
// main query method
public void search(String sketchPath, BackgroundWorker worker = null, bool progressOnlyDescriptor = false)
{
bool progress = (worker != null);
if (sketchPath.Equals(""))
{
return;
}
if (lda == null)
{
lda = LDA.loadTraining(
TRAINING_SIZE, TEST_SIZE,
SKETCH_PATH, SKETCH_EXTENSION, LDA_FILE_NAME,
out trainingSetSketchesPath, out testSetSketchesPath
);
}
if (descriptors == null)
{
if (File.Exists(DESCRIPTOR_FILE_NAME))
{
Stream openFileStream = File.OpenRead(DESCRIPTOR_FILE_NAME);
BinaryFormatter deserializer = new BinaryFormatter();
descriptors = (List <FaceDescriptor>)deserializer.Deserialize(openFileStream);
openFileStream.Close();
}
else
{
descriptors = new List <FaceDescriptor>();
List <FileInfo> files = new List <FileInfo>();
DirectoryInfo dinfo = new DirectoryInfo(PHOTO_PATH);
files.AddRange(dinfo.GetFiles(PHOTO_EXTENSION));
dinfo = new DirectoryInfo(OTHER_PHOTO_PATH);
files.AddRange(dinfo.GetFiles(PHOTO_EXTENSION));
files.AddRange(dinfo.GetFiles(OTHER_PHOTO_EXTENSION));
for (int i = 0; i < files.Count; i++)
{
FaceDescriptor face = processImage(files[i].FullName, files[i].Name, true);
if (face != null)
{
descriptors.Add(face);
}
if (progress)
{
worker.ReportProgress(i * 100 / files.Count);
}
}
Stream SaveFileStream = File.Create(DESCRIPTOR_FILE_NAME);
BinaryFormatter serializer = new BinaryFormatter();
serializer.Serialize(SaveFileStream, descriptors);
SaveFileStream.Close();
}
LDA.training(lda, descriptors, trainingSetSketchesPath,
processImage, TRAINING_SIZE, LDA_FILE_NAME, worker);
for (int i = 0; i < descriptors.Count; i++)
{
for (int k = 0; k < descriptors[i].DescriptorHog.Count(); k++)
{
descriptors[i].DescriptorHog[k] *= (float)lda.projectingVectorHOG[k];
}
for (int k = 0; k < descriptors[i].DescriptorSift.Count(); k++)
{
descriptors[i].DescriptorSift[k] *= (float)lda.projectingVectorSIFT[k];
}
}
}
if (progress && !progressOnlyDescriptor)
{
worker.ReportProgress(0);
}
sketchName = sketchPath.Substring(sketchPath.LastIndexOf('\\') + 1, 5);
FaceDescriptor sketchFace = processImage(sketchPath, sketchName, false);
resultHog = new SortedDictionary <double, string>();
resultSift = new SortedDictionary <double, string>();
resultBordaCount = new SortedDictionary <double, string>();
for (int i = 0; i < sketchFace.DescriptorHog.Count(); i++)
{
sketchFace.DescriptorHog[i] *= (float)lda.projectingVectorHOG[i];
}
for (int i = 0; i < sketchFace.DescriptorSift.Count(); i++)
{
sketchFace.DescriptorSift[i] *= (float)lda.projectingVectorSIFT[i];
}
int hogSize = 540;
int siftSize = 512;
for (int i = 0; i < descriptors.Count; i++)
{
addDictionaryUnique(
euclideanDistance(
sketchFace.DescriptorHog, descriptors[i].DescriptorHog, hogSize
), descriptors[i].Name, resultHog);
addDictionaryUnique(
euclideanDistance(
sketchFace.DescriptorSift, descriptors[i].DescriptorSift, siftSize
), descriptors[i].Name, resultSift);
if (progress && !progressOnlyDescriptor)
{
worker.ReportProgress(i * 100 / descriptors.Count);
}
}
Dictionary <string, int> dictionary = new Dictionary <string, int>();
int count = 0;
foreach (var r in resultHog)
{
dictionary.Add(r.Value, (resultHog.Count - count) * 2);//weight
count++;
}
count = 0;
foreach (var r in resultSift)
{
dictionary[r.Value] += resultSift.Count - count;
count++;
}
foreach (var r in dictionary)
{
double value = r.Value;
//negative int because sorted dictionary work in ascending mode only
addDictionaryUnique(-r.Value, r.Key, resultBordaCount);
}
if (progress && !progressOnlyDescriptor)
{
worker.ReportProgress(100);
}
}
public static void training(
LDA lda, List <FaceDescriptor> descriptors, List <string> trainingSetSketchesPath,
Func <string, string, bool, FaceDescriptor> processImage,
int TRAINING_SIZE, string LDA_FILE_NAME, BackgroundWorker worker = null
)
{
bool progress = (worker != null);
if (lda.projectingVectorHOG == null)
{
List <FaceDescriptor> trainingDescriptors = new List <FaceDescriptor>();
for (int i = 0; i < trainingSetSketchesPath.Count; i++)
{
FaceDescriptor face = processImage(trainingSetSketchesPath[i], lda.trainingSet[i], true);
if (face != null)
{
trainingDescriptors.Add(face);
}
if (progress)
{
worker.ReportProgress(i * 100 / trainingSetSketchesPath.Count);
}
}
if (progress)
{
worker.ReportProgress(0);
}
Dictionary <string, FaceDescriptor> descriptorsWithName = new Dictionary <string, FaceDescriptor>();
foreach (var descriptor in descriptors)
{
string name = descriptor.Name.Substring(0, 5);
if (!descriptorsWithName.ContainsKey(name))
{
descriptorsWithName.Add(name, descriptor);
}
}
int NPoints = TRAINING_SIZE * 2;
int NClasses = TRAINING_SIZE;
int NVarsHOG = trainingDescriptors[0].DescriptorHog.Count();
int NVarsSIFT = trainingDescriptors[0].DescriptorSift.Count();
double[,] xyHOG = new double[NPoints, NVarsHOG + 1];
double[,] xySIFT = new double[NPoints, NVarsSIFT + 1];
for (int i = 0; i < TRAINING_SIZE; i++)
{
FaceDescriptor photoDescriptor = descriptorsWithName[trainingDescriptors[i].Name];
for (int k = 0; k < NVarsHOG; k++)
{
xyHOG[i, k] = trainingDescriptors[i].DescriptorHog[k];
xyHOG[i + TRAINING_SIZE, k] = photoDescriptor.DescriptorHog[k];
}
xyHOG[i, NVarsHOG] = i;
xyHOG[i + TRAINING_SIZE, NVarsHOG] = i;
for (int k = 0; k < NVarsSIFT; k++)
{
xySIFT[i, k] = trainingDescriptors[i].DescriptorSift[k];
xySIFT[i + TRAINING_SIZE, k] = photoDescriptor.DescriptorSift[k];
}
xySIFT[i, NVarsSIFT] = i;
xySIFT[i + TRAINING_SIZE, NVarsSIFT] = i;
if (progress)
{
worker.ReportProgress(i * 100 / TRAINING_SIZE);
}
}
int info = 0;
double[] wHOG = new double[0];
double[] wSIFT = new double[0];
alglib.lda.fisherlda(xyHOG, NPoints, NVarsHOG, NClasses, ref info, ref wHOG, null);
alglib.lda.fisherlda(xySIFT, NPoints, NVarsSIFT, NClasses, ref info, ref wSIFT, null);
lda.projectingVectorHOG = wHOG;
lda.projectingVectorSIFT = wSIFT;
Stream SaveFileStream = File.Create(LDA_FILE_NAME);
BinaryFormatter serializer = new BinaryFormatter();
serializer.Serialize(SaveFileStream, lda);
SaveFileStream.Close();
}
}
