/// <summary>
/// Converts RGB to YUV.
/// </summary>
/// <param name="red">red must be in [0, 255].</param>
/// <param name="green">green must be in [0, 255].</param>
/// <param name="blue">blue must be in [0, 255].</param>
/// <returns>YUV.</returns>
public static YUV RGBtoYUV(int red, int green, int blue)
{
YUV yuv = new YUV();
// normalizes red/green/blue values
double nRed = (double)red / 255.0;
double nGreen = (double)green / 255.0;
double nBlue = (double)blue / 255.0;
// converts
yuv.Y = 0.299 * nRed + 0.587 * nGreen + 0.114 * nBlue;
yuv.U = -0.1471376975169300226 * nRed - 0.2888623024830699774 * nGreen + 0.436 * nBlue;
yuv.V = 0.615 * nRed - 0.5149857346647646220 * nGreen - 0.1000142653352353780 * nBlue;
return(yuv);
}
/// <summary>
/// Converts YUV to a .net Color.
/// </summary>
/// <param name="yuv">The yuv.</param>
/// <returns>Color.</returns>
public static Color YUVtoColor(YUV yuv)
{
RGB rgb = YUVtoRGB(yuv);
return(Color.FromArgb(rgb.Red, rgb.Green, rgb.Blue));
}
/// <summary>
/// Converts YUV to RGB.
/// </summary>
/// <param name="yuv">The yuv.</param>
/// <returns>RGB.</returns>
public static RGB YUVtoRGB(YUV yuv)
{
return(YUVtoRGB(yuv.Y, yuv.U, yuv.V));
}