face-detection

How can I do a basic face alignment on a 2-dimensional image with the assumption that I have the position/coordinates of the mouth and eyes. Is there any algorithm that I could implement to correct the face alignment on images? Face (or image) alignment refers to aligning one image (or face in your case) with respect to another (or a reference image/face). It is also referred to as image registration. You can do that using either appearance ( intensity-based registration ) or key-point locations ( feature-based registration ). The second category stems from image motion models where one image

I want to detect faces on camera previews. I saw this example in OpenCV samples: @Override protected Bitmap processFrame(VideoCapture capture) { capture.retrieve(mRgba, Highgui.CV_CAP_ANDROID_COLOR_FRAME_RGBA); capture.retrieve(mGray, Highgui.CV_CAP_ANDROID_GREY_FRAME); if (mCascade != null) { int height = mGray.rows(); int faceSize = Math.round(height * FdActivity.minFaceSize); List<Rect> faces = new LinkedList<Rect>(); mCascade.detectMultiScale(mGray, faces, 1.1, 2, 2 // TODO: objdetect.CV_HAAR_SCALE_IMAGE , new Size(faceSize, faceSize)); for (Rect r : faces) Core.rectangle(mRgba, r.tl(), r

How can I do face detection in realtime just as "Camera" does? like white round shape around and over the face. I use AVCapturSession . I found that the image I saved for facial detection. Below I have attached my current code. it only captures image when I press the button and save it into the photo gallery. some please help me to create real-time round shape over according to the person's face! code class CameraFaceRecongnitionVC: UIViewController { @IBOutlet weak var imgOverlay: UIImageView! @IBOutlet weak var btnCapture: UIButton! let captureSession = AVCaptureSession() let

EDIT found this code that helped with front camera images http://blog.logichigh.com/2008/06/05/uiimage-fix/ Hope others have had a similar issue and can help me out. Haven't found a solution yet. (It may seem a bit long but just a bunch of helper code) I'm using the ios face detector on images aquired from the camera (front and back) as well as images from the gallery (I'm using the UIImagePicker - for both image capture by camera and image selection from the gallery - not using avfoundation for taking pictures like in the squarecam demo) I am getting really messed up coordinates for the

How do people usually extract the shape of the lips once the mouth region is found (in my case using haar cascade)? I tried color segmentation and edge/corner detection but they're very inaccurate for me. I need to find the two corners and the very upper and lower lip at the center. I've heard things about active appearance models but I'm having trouble understanding how to use this with python and I don't have enough context to figure out if this is even the conventional method for detecting different parts of the lips. Is that my best choice or do I have other options? If I should use it,

Are there any good components, free or commercial, available for Delphi (I use Delphi 2009) that will allow me to easily implement face detection and tagging of the faces in photos (i.e. graphics/images)? I need to do something similar to what Google Picasa's Web Albums can do, but from within my application. Here is what you wanted http://delphimagic.blogspot.com/2011/08/reconocimiento-de-caras-con-delphi.html gjutras Did you see the SDK's that come in the answer Face recognition Library . The one from nuerotechnology has an activex component that you could use. 来源： https://stackoverflow.com

I'm pretty sure I have the general theme correct, but I'm not finding any faces. My code reads from c=cv2.VideoCapture(0) , i.e. the computer's videocamera. I then have the following set up to yield where the faces are. As you can see, I'm looping through different scaleFactors and minNeighbors but rects always comes back empty. I've also tried each of the four different haarcascade xml files included in the opencv/data/haarcascades package. Any tips? while(1): ret, frame = c.read() rects = find_face_from_img(frame) def detect(img, cascade): for scale in [float(i)/10 for i in range(11, 15)]:

I am trying to use CoreImage's face detection in iOS 5 but it is not detecting anything. I am trying to detect faces in an image that was just captured by the camera using this code: - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { UIImage *image = [info objectForKey:@"UIImagePickerControllerOriginalImage"]; NSDictionary *detectorOptions = [[NSDictionary alloc] initWithObjectsAndKeys:CIDetectorAccuracyHigh, CIDetectorAccuracy, nil]; CIDetector *faceDetector = [CIDetector detectorOfType:CIDetectorTypeFace context:nil options