/// <summary>
/// Convert this color to an hex string with format #AARRGGBB
/// </summary>
/// <returns>Hex string.</returns>
public string ColorToHex()
{
return(String.Format("#{0}{1}{2}{3}"
, Ab.ToString("X").Length == 1 ? String.Format("0{0}", Ab.ToString("X")) : Ab.ToString("X")
, Rb.ToString("X").Length == 1 ? String.Format("0{0}", Rb.ToString("X")) : Rb.ToString("X")
, Gb.ToString("X").Length == 1 ? String.Format("0{0}", Gb.ToString("X")) : Gb.ToString("X")
, Bb.ToString("X").Length == 1 ? String.Format("0{0}", Bb.ToString("X")) : Bb.ToString("X")));
}
//平均梯度
private void button1_Click(object sender, EventArgs e)
{
double Gr, Gg, Gb;
int delt_xr, delt_yr, delt_xg, delt_yg, delt_xb, delt_yb;
double map_r, map_g, map_b;
map_r = map_g = map_b = 0;
for (int i = 0; i < newBitmap.Width - 1; i++)
{
for (int j = 0; j < newBitmap.Height - 1; j++)
{
Color pixel = newBitmap.GetPixel(i, j);
Color pixel_x = newBitmap.GetPixel(i + 1, j);
Color pixel_y = newBitmap.GetPixel(i, j + 1);
delt_xr = (pixel_x.R - pixel.R) * (pixel_x.R - pixel.R);
delt_yr = (pixel_y.R - pixel.R) * (pixel_y.R - pixel.R);
delt_xg = (pixel_x.G - pixel.G) * (pixel_x.G - pixel.G);
delt_yg = (pixel_y.G - pixel.G) * (pixel_y.G - pixel.G);
delt_xb = (pixel_x.B - pixel.B) * (pixel_x.B - pixel.B);
delt_yb = (pixel_y.B - pixel.B) * (pixel_y.B - pixel.B);
map_r += Math.Sqrt(delt_xr + delt_yr);
map_g += Math.Sqrt(delt_xg + delt_yg);
map_b += Math.Sqrt(delt_xb + delt_yb);
}
}
Gr = map_r / ((newBitmap.Width - 1) * (newBitmap.Height - 1));
Gg = map_g / ((newBitmap.Width - 1) * (newBitmap.Height - 1));
Gb = map_b / ((newBitmap.Width - 1) * (newBitmap.Height - 1));
MessageBox.Show("融合图三通道平均梯度" + "\r\n" + "Gr:" + Gr.ToString() + " " + "Gg:" + Gg.ToString() + " " + "Gb:" + Gb.ToString());
}