public Rectangle DetectEdges(Bitmap source)
{
var fastSource = new FastBitmap(source);
fastSource.LockImage();
var(X, Width) = DetectVerticalLines(fastSource);
var(Y, Height) = DetectHorizontalLines(fastSource);
fastSource.UnlockImage();
if (Width > 0 && Height > 0)
{
Width -= 8;
X += 4;
Height -= 8;
Y += 4;
var rectangle = new Rectangle(X, Y, Width, Height);
RectangleDetected?.Invoke(this, new RectangleEventArgs(rectangle));
return(rectangle);
}
return(Rectangle.Empty);
}
protected virtual void OnRectangleDetected(Point e)
{
RectangleDetected?.Invoke(this, e);
}