isFaceStable static method
Implementation
static bool isFaceStable(Rect newRect, Rect _lastFaceRect) {
final dx = (newRect.center.dx - _lastFaceRect.center.dx).abs();
final dy = (newRect.center.dy - _lastFaceRect.center.dy).abs();
final dw = (newRect.width - _lastFaceRect.width).abs();
final dh = (newRect.height - _lastFaceRect.height).abs();
return dx < 15 && dy < 15 && dw < 10 && dh < 10;
}