private void button1_Click(object sender, RoutedEventArgs e)
{
LColor lc = new LColor();
//lc.Lab_L = Convert.ToDouble(textBoxLabL1.Text);
//lc.Lab_a = Convert.ToDouble(textBoxLaba1.Text);
//lc.Lab_b = Convert.ToDouble(textBoxLabb1.Text);
//lc.CalculateLab2XYZ();
lc.CalculateXYZ2RGB();
textRGB_R.Text = lc.ARGB_R.ToString();
textRGB_G.Text = lc.ARGB_G.ToString();
textRGB_B.Text = lc.ARGB_B.ToString();
}