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Egypt
Asked — Edited
Resolved Resolved by ptp!

How Could I Use Ez Face Detection In My Vs Application

Hello everyone especially @ptp,

I need to know how to use the ez face detection method in my vs app

i try this code but it didn't work

ValuePair vp = (ValuePair)cbVideoDevices.SelectedItem;
camera.StartCamera(vp, pictureBox1, 640, 480);

camera.CameraFaceDetection.GetFaceDetection();

all I need is to use ez face detection as emgu face detection doesn't work with ez camera , even i try to implement it on my jd camera it throw an exception that it can't implicit emgu quary frame to ez camera . get current bitmap

also i try this code


ValuePair videocamera = (ValuePair)cbVideoDevices.SelectedItem;
camera.StartCamera(videocamera, pictureBox1, 640, 480);

//==============================================


//Bitmap bmpImage = this.camera.GetCurrentBitmap;
//if (this.camera.GetCurrentBitmap == null)
//{
// MessageBox.Show("Error");
//}

//wait 10 seconds for the first camera frame
Image ImageFrame = null;
EventWaitHandle startEvent;
startEvent = new EventWaitHandle(false, EventResetMode.AutoReset);


// Bitmap bmapImageOutput = this.camera.GetCurrentBitmap;
// pictureBox1.Image = bmapImageOutput;
//ImageFrame = new Image(this.camera.GetCurrentBitmap);


if (ImageFrame != null)
{

Image grayImage = ImageFrame.Convert();
var faces = grayImage.DetectHaarCascade(facedetection, 1.4, 4,
HAAR_DETECTION_TYPE.DO_CANNY_PRUNING,
new Size(20, 20))[0];
foreach (var face in faces)
{
//draw the face detected in the 0th (gray) ch
ImageFrame.Draw(face.rect, new Bgr(Color.Blue), 3);
Bitmap c = ImageFrame.ToBitmap();
Bitmap bmp = new Bitmap(face.rect.Width, face.rect.Height);
g = Graphics.FromImage(bmp);
g.DrawImage(c, 0, 0, face.rect, GraphicsUnit.Pixel);
MessageBox.Show("Showing Image in PicBox2");

}
MessageBox.Show("FD Code didn't RUN");
pictureBox1.Image = ImageFrame.ToBitmap();
//===========================


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PRO
USA
#1  
please use the code format tags before and after your c# fragment code, it makes a huge difference when reading code.

The EZB SDK method:

Code:

camera.CameraFaceDetection.GetFaceDetection()


is very similar to the :

Code:


ObjectLocation objectLocation = _camera.CameraCustomColorDetection.GetObjectLocationByColor(
          Invokers.GetCheckedValue(cbPreviewDetect),
          Invokers.GetTrackBarValue(tbMinObjectSize),
          huePicker1.Min,
          huePicker1.Max,
          scSatMin.Value,
          scSatMax.Value,
          scLumMin.Value,
          scLumMax.Value);


How to start:

1) you will need to get familiar how it works inside ARC. There is at least one tutorial:

http://www.ez-robot.com/Tutorials/UserTutorials/23/1
but there's more information/help inside ARC (i.e. Blue Question mark in controls)

2) EZ-B SDK example c# code has a project:
Tutorial 11 - Color Vision Tracking

which uses the CameraCustomColorDetection.GetObjectLocationByColor

I think if you master the above two points (ColorDetection) you can do other camera Detection methods.
PRO
USA
#2  
@shaimaabes,

I just open visual studio and is really very simple to detect a Face.

Code:


private void CameraOnOnNewFrame()
        {
            this.frameEventObject.Set();
            this.pictureBox1.Invoke(new EventHandler(delegate { this.pictureBox1.Image = this.camera.GetCurrentBitmap; }));
            Interlocked.Increment(ref this.fpsCounter);

            if (this.fpsCounter == 1)
            {
                var objectLocation = this.camera.CameraFaceDetection.GetFaceDetection();
                if (objectLocation.IsObjectFound)
                {
                    WriteDebug(string.Format("Face detected at H:{0} V:{1}", objectLocation.HorizontalLocation, objectLocation.VerticalLocation));
                }
            }

        }


the code runs every 1 st video frame per second.
#3  
@ptp
Your consistent guidance helps me to increase my potential in work . You show the path of brighter world , which makes me able grasp my aims .
Thankful to dear Boss ^_^
PRO
USA
#4  
@shaimabes,

Thanks for kind words, but do not forget:

Quote:


Give a Man a Fish, and You Feed Him for a Day. Teach a Man To Fish, and You Feed Him for a Lifetime


you are using a EZ-Robot software, it's very important to get familiar with the "user" tool, before embracing the SDK, some functionalities are easy to see working in the ARC side, there are a lot of tutorials, and posts where you can learn more.
PRO
Synthiam
#6  
The camera.GetCurrentBitmap() is only available within the CameraOnOnNewFrame() event. Because until CameraOnOnNewFrame() is raised, there are no images to "get".
#8  
thanks @DJ Sures alot for ur replay

@ptp would u contact me on my email or send me ur email
I've made it using haar cascade & i want to share it with u & to get ur feedback of it
would u give me that chance please .
my email (shaimaabes@yahoo.com)
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