/// <summary>
/// A method to tune the hand detector.
/// </summary>
/// <param name="tuning">The <see cref="IHandsDetectorTuning"/> tuning object.</param>
/// <returns>The neutral hands that was detected right after tuning.</returns>
public NormalizedHands Tune(IHandsDetectorTuning tuning)
{
this.tuning = tuning;
HandsDetectorResult result = this.DetectHandsInternally(this.tuning.HandsForeground);
this.neutralHands = result.Hands;
this.Tuned = true;
return(this.neutralHands);
}
private HandsDetectorResult DetectHandsInternally(BgrImage image)
{
int handAreaWidth = image.Width / DIVISOR_TO_GET_HAND_AREA_WIDTH_FROM_IMAGE_WIDTH;
NormalizedHand left = this.EvaluatePixels(image, 0, handAreaWidth, this.tuning.HandsColorMaps.Left, this.neutralHands?.Left);
NormalizedHand right = this.EvaluatePixels(image, image.Width - handAreaWidth, handAreaWidth, this.tuning.HandsColorMaps.Right, this.neutralHands?.Right);
int radius = image.Width * image.Height / DIVISOR_TO_GET_HAND_MARKER_CIRCLE_RADIUS_FROM_IMAGE_SIZE;
if (this.Tuned && this.neutralHands != null)
{
image.DrawLineSegment(left.X, left.Y, this.neutralHands.Center.X, this.neutralHands.Center.Y, Color.Yellow, radius);
image.DrawLineSegment(this.neutralHands.Center.X, this.neutralHands.Center.Y, right.X, right.Y, Color.Yellow, radius);
}
image.DrawCircle(left.X, left.Y, Color.Blue, radius, BgrImage.FILL_DRAWING);
image.DrawCircle(right.X, right.Y, Color.Blue, radius, BgrImage.FILL_DRAWING);
NormalizedHands normalizedHands = new NormalizedHands(left, right);
return(new HandsDetectorResult(normalizedHands, image));
}
/// <summary>
/// Initializes a new instance of the <see cref="HandsDetectorResult"/> class.
/// </summary>
/// <param name="hands">The detected hands.</param>
/// <param name="image">The image of the hand detection.</param>
public HandsDetectorResult(NormalizedHands hands, BgrImage image)
{
this.Hands = hands;
this.Image = image;
}