How to crop area from camera - ios

Question

I have draw a rectangle with in the native camera view, I'm trying to use it as a guide or crop area to capture only the business card image, I'm unable to crop image from camera native view within drawn rectangle
extension UIScreen {
func fullScreenSquare() -> CGRect {
var hw:CGFloat = 0
var isLandscape = false
if UIScreen.main.bounds.size.width < UIScreen.main.bounds.size.height {
hw = UIScreen.main.bounds.size.width
}
else {
isLandscape = true
hw = UIScreen.main.bounds.size.height
}
var x:CGFloat = 0
var y:CGFloat = 0
if isLandscape {
x = (UIScreen.main.bounds.size.width / 2) - (hw / 2)
}
else {
y = (UIScreen.main.bounds.size.height / 2) - (hw / 2)
}
return CGRect(x: x, y: y, width: hw, height: hw/3*2)
}
func isLandscape() -> Bool {
return UIScreen.main.bounds.size.width > UIScreen.main.bounds.size.height
}
}
func guideForCameraOverlay() -> UIView {
let guide = UIView(frame: UIScreen.main.fullScreenSquare())
guide.backgroundColor = UIColor.clear
guide.layer.borderWidth = 4
guide.layer.borderColor = UIColor.orange.cgColor
guide.isUserInteractionEnabled = false
return guide
}
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
if setPhoto == 1 {
if let image = info[UIImagePickerController.InfoKey.editedImage] as? UIImage{
let size = CGSize(width: 600, height: 400)
//let imageCroped = image.cgImage?.cropping(to: size)
let imageCroped = image.crop(to: size)
frontPhotoImageView.image = UIImage(cgImage: imageCroped as! CGImage)
setPhoto = 0
frontPhotoImage.setTitle("", for: UIControl.State.normal)
}
else {
// Error message
}
self.dismiss(animated: true, completion: nil)
}
if setPhoto == 2 {
if let image = info[UIImagePickerController.InfoKey.editedImage] as? UIImage{
backPhotoImageView.image = image
setPhoto = 0
backPhotoImage.setTitle("", for: UIControl.State.normal)
}
else {
// Error message
}
self.dismiss(animated: true, completion: nil)
}
}
I expect to have the image from with in the drawn rectangle, but it does not happen.
I expect to crop the image to the size inside the orange rectangle on this image