public static void Detect(
Mat image, String faceFileName, String eyeFileName,
List <Rectangle> faces, List <Rectangle> eyes,
bool tryUseCuda)
{
#if !(__IOS__ || NETFX_CORE)
if (tryUseCuda && CudaInvoke.HasCuda)
{
if (face == null)
{
face = new CudaCascadeClassifier(faceFileName);
}
if (eye == null)
{
eye = new CudaCascadeClassifier(eyeFileName);
}
//using (face)
//using (eye)
{
face.ScaleFactor = 1.1;
face.MinNeighbors = 10;
face.MinObjectSize = Size.Empty;
eye.ScaleFactor = 1.1;
eye.MinNeighbors = 10;
eye.MinObjectSize = Size.Empty;
using (CudaImage <Bgr, Byte> gpuImage = new CudaImage <Bgr, byte>(image))
using (CudaImage <Gray, Byte> gpuGray = gpuImage.Convert <Gray, Byte>())
using (GpuMat region = new GpuMat())
{
face.DetectMultiScale(gpuGray, region);
Rectangle[] faceRegion = face.Convert(region);
faces.AddRange(faceRegion);
foreach (Rectangle f in faceRegion)
{
using (CudaImage <Gray, Byte> faceImg = gpuGray.GetSubRect(f))
{
//For some reason a clone is required.
//Might be a bug of CudaCascadeClassifier in opencv
using (CudaImage <Gray, Byte> clone = faceImg.Clone(null))
using (GpuMat eyeRegionMat = new GpuMat())
{
eye.DetectMultiScale(clone, eyeRegionMat);
Rectangle[] eyeRegion = eye.Convert(eyeRegionMat);
foreach (Rectangle e in eyeRegion)
{
Rectangle eyeRect = e;
eyeRect.Offset(f.X, f.Y);
eyes.Add(eyeRect);
}
}
}
}
}
}
}
#endif
}
IImage CudaDetect(IImage original, List <Rectangle> faces, List <Rectangle> eyes)
{
using (CudaCascadeClassifier face = new CudaCascadeClassifier(faceFileName))
using (CudaCascadeClassifier eye = new CudaCascadeClassifier(eyeFileName))
{
face.ScaleFactor = 1.1;
face.MinNeighbors = 10;
face.MinObjectSize = Size.Empty;
eye.ScaleFactor = 1.1;
eye.MinNeighbors = 10;
eye.MinObjectSize = Size.Empty;
using (CudaImage <Bgr, Byte> gpuImage = new CudaImage <Bgr, byte>(original))
using (CudaImage <Gray, Byte> gpuGray = gpuImage.Convert <Gray, Byte>())
using (GpuMat region = new GpuMat())
{
face.DetectMultiScale(gpuGray, region);
Rectangle[] faceRegion = face.Convert(region);
faces.AddRange(faceRegion);
foreach (Rectangle f in faceRegion)
{
using (CudaImage <Gray, Byte> faceImg = gpuGray.GetSubRect(f))
{
//For some reason a clone is required.
//Might be a bug of CudaCascadeClassifier in opencv
using (CudaImage <Gray, Byte> clone = faceImg.Clone(null))
using (GpuMat eyeRegionMat = new GpuMat())
{
eye.DetectMultiScale(clone, eyeRegionMat);
Rectangle[] eyeRegion = eye.Convert(eyeRegionMat);
foreach (Rectangle e in eyeRegion)
{
Rectangle eyeRect = e;
eyeRect.Offset(f.X, f.Y);
eyes.Add(eyeRect);
}
}
}
}
}
}
IImage copy = CopyAndDraw(original, faces.ToArray());
copy = CopyAndDraw(copy, eyes.ToArray());
return(copy);
//return eyes;
}
//The cuda cascade classifier doesn't seem to be able to load "haarcascade_frontalface_default.xml" file in this release
//disabling CUDA module for now
//bool tryUseCuda = false;
//FaceDetection.DetectFaceAndEyes(
// image, "haarcascade_frontalface_default.xml", "haarcascade_eye.xml",
// faces, eyes,
// tryUseCuda,
// out detectionTime);
//foreach (Rectangle face in faces)
// CvInvoke.Rectangle(image, face, new Bgr(Color.Red).MCvScalar, 2);
//foreach (Rectangle eye in eyes)
// CvInvoke.Rectangle(image, eye, new Bgr(Color.Blue).MCvScalar, 2);
////display the image
//ImageViewer.Show(image, String.Format(
// "Completed face and eye detection using {0} in {1} milliseconds",
// (tryUseCuda && CudaInvoke.HasCuda) ? "GPU"
// : CvInvoke.UseOpenCL ? "OpenCL"
// : "CPU",
// detectionTime));
public static void DetectFaceAndEyes(
Mat image, String faceFileName, String eyeFileName,
List <Rectangle> faces, List <Rectangle> eyes,
bool tryUseCuda,
out long detectionTime)
{
Stopwatch watch;
#if !(__IOS__ || NETFX_CORE)
if (tryUseCuda && CudaInvoke.HasCuda)
{
using (CudaCascadeClassifier face = new CudaCascadeClassifier(faceFileName))
using (CudaCascadeClassifier eye = new CudaCascadeClassifier(eyeFileName))
{
face.ScaleFactor = 1.1;
face.MinNeighbors = 10;
face.MinObjectSize = Size.Empty;
eye.ScaleFactor = 1.1;
eye.MinNeighbors = 10;
eye.MinObjectSize = Size.Empty;
watch = Stopwatch.StartNew();
using (CudaImage <Bgr, Byte> gpuImage = new CudaImage <Bgr, byte>(image))
using (CudaImage <Gray, Byte> gpuGray = gpuImage.Convert <Gray, Byte>())
using (GpuMat region = new GpuMat())
{
face.DetectMultiScale(gpuGray, region);
Rectangle[] faceRegion = face.Convert(region);
faces.AddRange(faceRegion);
foreach (Rectangle f in faceRegion)
{
using (CudaImage <Gray, Byte> faceImg = gpuGray.GetSubRect(f))
{
//For some reason a clone is required.
//Might be a bug of CudaCascadeClassifier in opencv
using (CudaImage <Gray, Byte> clone = faceImg.Clone(null))
using (GpuMat eyeRegionMat = new GpuMat())
{
eye.DetectMultiScale(clone, eyeRegionMat);
Rectangle[] eyeRegion = eye.Convert(eyeRegionMat);
foreach (Rectangle e in eyeRegion)
{
Rectangle eyeRect = e;
eyeRect.Offset(f.X, f.Y);
eyes.Add(eyeRect);
}
}
}
}
}
watch.Stop();
}
}
else
#endif
{
//Read the HaarCascade objects
using (CascadeClassifier face = new CascadeClassifier(faceFileName))
using (CascadeClassifier eye = new CascadeClassifier(eyeFileName))
{
watch = Stopwatch.StartNew();
using (UMat ugray = new UMat())
{
CvInvoke.CvtColor(image, ugray, Emgu.CV.CvEnum.ColorConversion.Bgr2Gray);
//normalizes brightness and increases contrast of the image
CvInvoke.EqualizeHist(ugray, ugray);
//Detect the faces from the gray scale image and store the locations as rectangle
//The first dimensional is the channel
//The second dimension is the index of the rectangle in the specific channel
Rectangle[] facesDetected = face.DetectMultiScale(
ugray,
1.1,
10,
new Size(20, 20));
faces.AddRange(facesDetected);
foreach (Rectangle f in facesDetected)
{
//Get the region of interest on the faces
using (UMat faceRegion = new UMat(ugray, f))
{
Rectangle[] eyesDetected = eye.DetectMultiScale(
faceRegion,
1.1,
10,
new Size(20, 20));
foreach (Rectangle e in eyesDetected)
{
Rectangle eyeRect = e;
eyeRect.Offset(f.X, f.Y);
eyes.Add(eyeRect);
}
}
}
}
watch.Stop();
}
}
detectionTime = watch.ElapsedMilliseconds;
}
public static void Detect(
Mat image, String faceFileName, String eyeFileName,
List <Rectangle> faces, List <Rectangle> eyes,
bool tryUseCuda, bool tryUseOpenCL,
out long detectionTime)
{
Stopwatch watch;
#if !(IOS || NETFX_CORE)
if (tryUseCuda && CudaInvoke.HasCuda)
{
using (CudaCascadeClassifier face = new CudaCascadeClassifier(faceFileName))
using (CudaCascadeClassifier eye = new CudaCascadeClassifier(eyeFileName))
{
watch = Stopwatch.StartNew();
using (CudaImage <Bgr, Byte> gpuImage = new CudaImage <Bgr, byte>(image))
using (CudaImage <Gray, Byte> gpuGray = gpuImage.Convert <Gray, Byte>())
{
Rectangle[] faceRegion = face.DetectMultiScale(gpuGray, 1.1, 10, Size.Empty);
faces.AddRange(faceRegion);
foreach (Rectangle f in faceRegion)
{
using (CudaImage <Gray, Byte> faceImg = gpuGray.GetSubRect(f))
{
//For some reason a clone is required.
//Might be a bug of CudaCascadeClassifier in opencv
using (CudaImage <Gray, Byte> clone = faceImg.Clone(null))
{
Rectangle[] eyeRegion = eye.DetectMultiScale(clone, 1.1, 10, Size.Empty);
foreach (Rectangle e in eyeRegion)
{
Rectangle eyeRect = e;
eyeRect.Offset(f.X, f.Y);
eyes.Add(eyeRect);
}
}
}
}
}
watch.Stop();
}
}
else
#endif
{
//Many opencl functions require opencl compatible gpu devices.
//As of opencv 3.0-alpha, opencv will crash if opencl is enable and only opencv compatible cpu device is presented
//So we need to call CvInvoke.HaveOpenCLCompatibleGpuDevice instead of CvInvoke.HaveOpenCL (which also returns true on a system that only have cpu opencl devices).
CvInvoke.UseOpenCL = tryUseOpenCL && CvInvoke.HaveOpenCLCompatibleGpuDevice;
//Read the HaarCascade objects
using (CascadeClassifier face = new CascadeClassifier(faceFileName))
using (CascadeClassifier eye = new CascadeClassifier(eyeFileName))
{
watch = Stopwatch.StartNew();
using (UMat ugray = new UMat())
{
CvInvoke.CvtColor(image, ugray, Emgu.CV.CvEnum.ColorConversion.Bgr2Gray);
//normalizes brightness and increases contrast of the image
CvInvoke.EqualizeHist(ugray, ugray);
//Detect the faces from the gray scale image and store the locations as rectangle
//The first dimensional is the channel
//The second dimension is the index of the rectangle in the specific channel
Rectangle[] facesDetected = face.DetectMultiScale(
ugray,
1.1,
10,
new Size(20, 20));
faces.AddRange(facesDetected);
foreach (Rectangle f in facesDetected)
{
//Get the region of interest on the faces
using (UMat faceRegion = new UMat(ugray, f))
{
Rectangle[] eyesDetected = eye.DetectMultiScale(
faceRegion,
1.1,
10,
new Size(20, 20));
foreach (Rectangle e in eyesDetected)
{
Rectangle eyeRect = e;
eyeRect.Offset(f.X, f.Y);
eyes.Add(eyeRect);
}
}
}
}
watch.Stop();
}
}
detectionTime = watch.ElapsedMilliseconds;
}
public static void DetectFace(
Mat image, bool detectEyes,
List <Rectangle> faces, List <Rectangle> eyes,
out long detectionTime)
{
Stopwatch watch;
String faceFileName = Application.dataPath + "\\Emgu\\haarcascades\\haarcascade_frontalface_default.xml";
String eyeFileName = Application.dataPath + "\\Emgu\\haarcascade_eye.xml";
if (!detectEyes)
{
eyeFileName = "";
}
#if !(IOS || NETFX_CORE)
if (CudaInvoke.HasCuda)
{
CudaCascadeClassifier face = null;
if (faceFileName != "")
{
face = new CudaCascadeClassifier(faceFileName);
}
CudaCascadeClassifier eye = null;
if (eyeFileName != "")
{
eye = new CudaCascadeClassifier(eyeFileName);
}
{
face.ScaleFactor = 1.1;
face.MinNeighbors = 10;
face.MinObjectSize = Size.Empty;
if (eye != null)
{
eye.ScaleFactor = 1.1;
eye.MinNeighbors = 10;
eye.MinObjectSize = Size.Empty;
}
watch = Stopwatch.StartNew();
using (CudaImage <Bgr, Byte> gpuImage = new CudaImage <Bgr, byte> (image))
using (CudaImage <Gray, Byte> gpuGray = gpuImage.Convert <Gray, Byte> ())
using (GpuMat region = new GpuMat()) {
face.DetectMultiScale(gpuGray, region);
Rectangle[] faceRegion = face.Convert(region);
faces.AddRange(faceRegion);
if (eye != null)
{
foreach (Rectangle f in faceRegion)
{
using (CudaImage <Gray, Byte> faceImg = gpuGray.GetSubRect(f)) {
//For some reason a clone is required.
//Might be a bug of CudaCascadeClassifier in opencv
using (CudaImage <Gray, Byte> clone = faceImg.Clone(null))
using (GpuMat eyeRegionMat = new GpuMat()) {
eye.DetectMultiScale(clone, eyeRegionMat);
Rectangle[] eyeRegion = eye.Convert(eyeRegionMat);
foreach (Rectangle e in eyeRegion)
{
Rectangle eyeRect = e;
eyeRect.Offset(f.X, f.Y);
eyes.Add(eyeRect);
}
}
}
}
}
}
watch.Stop();
detectionTime = watch.ElapsedMilliseconds;
}
}
else
#endif
{
detectionTime = 0;
}
}
public void Detect(
IInputArray image,
List <Rectangle> faces, List <Rectangle> eyes)
{
using (InputArray iaImage = image.GetInputArray())
{
#if !(__IOS__ || NETFX_CORE)
if (iaImage.Kind == InputArray.Type.CudaGpuMat && CudaInvoke.HasCuda)
{
// Traitement avec CUDA
using (CudaImage <Bgr, Byte> gpuImage = new CudaImage <Bgr, byte>(image))
using (CudaImage <Gray, Byte> gpuGray = gpuImage.Convert <Gray, Byte>())
using (GpuMat region = new GpuMat())
{
faceCuda.DetectMultiScale(gpuGray, region);
Rectangle[] faceRegion = faceCuda.Convert(region);
faces.AddRange(faceRegion);
foreach (Rectangle f in faceRegion)
{
using (CudaImage <Gray, Byte> faceImg = gpuGray.GetSubRect(f))
{
//For some reason a clone is required.
//Might be a bug of CudaCascadeClassifier in opencv
using (CudaImage <Gray, Byte> clone = faceImg.Clone(null))
using (GpuMat eyeRegionMat = new GpuMat())
{
eyeCuda.DetectMultiScale(clone, eyeRegionMat);
Rectangle[] eyeRegion = eyeCuda.Convert(eyeRegionMat);
foreach (Rectangle e in eyeRegion)
{
Rectangle eyeRect = e;
eyeRect.Offset(f.X, f.Y);
eyes.Add(eyeRect);
}
}
}
}
}
}
else
#endif
{
// Traitement sans CUDA
using (UMat ugray = new UMat())
{
CvInvoke.CvtColor(image, ugray, Emgu.CV.CvEnum.ColorConversion.Bgr2Gray);
//normalizes brightness and increases contrast of the image
CvInvoke.EqualizeHist(ugray, ugray);
//Detect the faces from the gray scale image and store the locations as rectangle
//The first dimensional is the channel
//The second dimension is the index of the rectangle in the specific channel
Rectangle[] facesDetected = faceCpu.DetectMultiScale(
ugray,
1.1,
10,
new Size(20, 20));
faces.AddRange(facesDetected);
foreach (Rectangle f in facesDetected)
{
//Get the region of interest on the faces
using (UMat faceRegion = new UMat(ugray, f))
{
Rectangle[] eyesDetected = eyeCpu.DetectMultiScale(
faceRegion,
1.1,
10,
new Size(20, 20));
foreach (Rectangle e in eyesDetected)
{
Rectangle eyeRect = e;
eyeRect.Offset(f.X, f.Y);
eyes.Add(eyeRect);
}
}
}
}
}
}
}
public static void Detect(
Mat image, String faceFileName, String eyeleftFileName, string eyerightFileName,
List <Rectangle> faces, List <Rectangle> eyesleft, List <Rectangle> eyesright,
bool tryUseCuda, bool tryUseOpenCL,
out long detectionTime)
{
Stopwatch watch;
#if !(IOS || NETFX_CORE)
if (tryUseCuda && CudaInvoke.HasCuda)
{
using (CudaCascadeClassifier face = new CudaCascadeClassifier(faceFileName))
using (CudaCascadeClassifier eyeleft = new CudaCascadeClassifier(eyeleftFileName))
using (CudaCascadeClassifier eyeright = new CudaCascadeClassifier(eyerightFileName))
{
face.ScaleFactor = 1.1;
face.MinNeighbors = 10;
face.MinObjectSize = Size.Empty;
eyeleft.ScaleFactor = 1.1;
eyeleft.MinNeighbors = 10;
eyeleft.MinObjectSize = Size.Empty;
eyeright.ScaleFactor = 1.1;
eyeright.MinNeighbors = 10;
eyeright.MinObjectSize = Size.Empty;
watch = Stopwatch.StartNew();
using (CudaImage <Bgr, Byte> gpuImage = new CudaImage <Bgr, byte>(image))
using (CudaImage <Gray, Byte> gpuGray = gpuImage.Convert <Gray, Byte>())
using (GpuMat region = new GpuMat())
{
face.DetectMultiScale(gpuGray, region);
Rectangle[] faceRegion = face.Convert(region);
faces.AddRange(faceRegion);
foreach (Rectangle f in faceRegion)
{
using (CudaImage <Gray, Byte> faceImg = gpuGray.GetSubRect(f))
{
//For some reason a clone is required.
//Might be a bug of CudaCascadeClassifier in opencv
using (CudaImage <Gray, Byte> clone = faceImg.Clone(null))
using (GpuMat eyeRegionMat = new GpuMat())
{
eyeleft.DetectMultiScale(clone, eyeRegionMat);
Rectangle[] eyeRegion = eyeleft.Convert(eyeRegionMat);
foreach (Rectangle eleft in eyeRegion)
{
Rectangle eyeRectleft = eleft;
eyeRectleft.Offset(f.X, f.Y);
eyesleft.Add(eyeRectleft);
}
}
using (CudaImage <Gray, Byte> clone = faceImg.Clone(null))
using (GpuMat eyeRegionMat = new GpuMat())
{
eyeright.DetectMultiScale(clone, eyeRegionMat);
Rectangle[] eyeRegion = eyeright.Convert(eyeRegionMat);
foreach (Rectangle eright in eyeRegion)
{
Rectangle eyeRectright = eright;
eyeRectright.Offset(f.X, f.Y);
eyesright.Add(eyeRectright);
}
}
}
}
}
watch.Stop();
}
}
else
#endif
{
//Many opencl functions require opencl compatible gpu devices.
//As of opencv 3.0-alpha, opencv will crash if opencl is enable and only opencv compatible cpu device is presented
//So we need to call CvInvoke.HaveOpenCLCompatibleGpuDevice instead of CvInvoke.HaveOpenCL (which also returns true on a system that only have cpu opencl devices).
CvInvoke.UseOpenCL = tryUseOpenCL && CvInvoke.HaveOpenCLCompatibleGpuDevice;
//Read the HaarCascade objects
using (CascadeClassifier face = new CascadeClassifier(faceFileName))
using (CascadeClassifier eyeleft = new CascadeClassifier(eyeleftFileName))
using (CascadeClassifier eyeright = new CascadeClassifier(eyerightFileName))
{
watch = Stopwatch.StartNew();
using (UMat ugray = new UMat())
{
CvInvoke.CvtColor(image, ugray, Emgu.CV.CvEnum.ColorConversion.Bgr2Gray);
//Cân bằng sáng của ảnh
CvInvoke.EqualizeHist(ugray, ugray);
//Phát hiện các khuôn mặt từ hình ảnh màu xám và lưu các vị trí làm hình chữ nhật
// Chiều thứ nhất là kênh
// Kích thước thứ hai là chỉ mục của hình chữ nhật trong kênh cụ thể
Rectangle[] facesDetected = face.DetectMultiScale(
ugray,
1.1,
10,
new Size(20, 20));
faces.AddRange(facesDetected);
foreach (Rectangle f in facesDetected)
{
//Sử dụng khu vực của khuôn mặt
using (UMat faceRegion = new UMat(ugray, f))
{
//tìm hình chữ nhật của mắt phải
Rectangle[] eyesleftDetected = eyeleft.DetectMultiScale(
faceRegion,
1.1,
10,
new Size(20, 20));
foreach (Rectangle eleft in eyesleftDetected)
{
Rectangle eyeRectleft = eleft;
eyeRectleft.Offset(f.X, f.Y);
eyesleft.Add(eyeRectleft);
}
//tìm hình chữ nhật của mắt phải
Rectangle[] eyesrightDetected = eyeright.DetectMultiScale(
faceRegion,
1.1,
10,
new Size(20, 20));
foreach (Rectangle eright in eyesrightDetected)
{
Rectangle eyeRectright = eright;
eyeRectright.Offset(f.X, f.Y);
eyesright.Add(eyeRectright);
}
}
}
}
watch.Stop();
}
}
detectionTime = watch.ElapsedMilliseconds;//đo tổng thời gian trôi qua
}
