Comments (2)
The VNFaceObservation
returns a normalized bounding box. You have to do the math for translation according to size of your layer. For example, I just use the frame.width
and frame.height
of my Preview.
func drawFaceWithLandmarks(face: VNFaceObservation) {
let transform = CGAffineTransform(scaleX: 1, y: -1).translatedBy(x: 0, y: -frame.height)
let translate = CGAffineTransform.identity.scaledBy(x: frame.width, y: frame.height)
// The coordinates are normalized to the dimensions of the processed image, with the origin at the image's lower-left corner.
let facebounds = face.boundingBox.applying(translate).applying(transform)
...
from applefacedetection.
I'm still having problem with this and I think its because the videoGravity property I have to change on AVCaptureVideoPreviewLayer.
I made a smaller preview view and changed .videoGravity
on videoPreviewLayer
var videoPreviewLayer: AVCaptureVideoPreviewLayer {
let videoLayer = layer as! AVCaptureVideoPreviewLayer
videoLayer.videoGravity = .resizeAspectFill
return videoLayer
}
If you have the time could you please check the changes I made on this fork.
https://github.com/davnag/AppleFaceDetection
from applefacedetection.
Related Issues (9)
- face landmark tracking over video HOT 17
- avoid face from image or video? HOT 1
- Save CGrect of previewView HOT 2
- Use CoreML on detected faces HOT 4
- Issue while Drawing boudning box in front camera. HOT 2
- Save an image once the face is detected HOT 2
- Wrong rectangle position when changing device orientation
- Facial Recognition
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from applefacedetection.