/// <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>
public static YUV RGBtoYUV(int red, int green, int blue)
{
var yuv = new YUV();
// normalizes red/green/blue values
var nRed = red / 255.0;
var nGreen = green / 255.0;
var nBlue = 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>
public static Color YUVtoColor(YUV yuv)
{
var rgb = YUVtoRGB(yuv);
return Color.FromArgb((byte) rgb.Red, (byte) rgb.Green, (byte) rgb.Blue);
}
/// <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>
public static YUV RGBtoYUV(int red, int green, int blue)
{
var yuv = new YUV();
// normalizes red/green/blue values
var nRed = red/255.0;
var nGreen = green/255.0;
var nBlue = 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 RGB.
/// </summary>
public static RGB YUVtoRGB(YUV yuv)
{
return YUVtoRGB(yuv.Y, yuv.U, yuv.V);
}
/// <summary>
/// Converts YUV to a .net Color.
/// </summary>
public static Color YUVtoColor(YUV yuv)
{
var rgb = YUVtoRGB(yuv);
return(Color.FromArgb((byte)rgb.Red, (byte)rgb.Green, (byte)rgb.Blue));
}
/// <summary>
/// Converts YUV to RGB.
/// </summary>
public static RGB YUVtoRGB(YUV yuv)
{
return(YUVtoRGB(yuv.Y, yuv.U, yuv.V));
}
