Rgb From Hsv - CSharp System.Drawing

CSharp examples for System.Drawing:Color RGB

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Description

Rgb From Hsv

Demo Code

// Permission is hereby granted, free of charge, to any person obtaining a copy of this
using System.Windows.Media;
using System.Text;
using System.Linq;
using System.Collections.Generic;
using System;//ww w .  j a  v  a  2s  . c o m

public class Main{
        // http://en.wikipedia.org/wiki/HSV_color_space
      public static void RgbFromHsv(double h, double s, double v, out double r, out double g, out double b)
      {
         h = h % 360;
         if (h < 0) h += 360; // C# '%' can return negative values, use real modulus instead
         int hi = (int)(h / 60) % 6;
         var f = h / 60 - (int)(h / 60);
         var p = v * (1 - s);
         var q = v * (1 - f * s);
         var t = v * (1 - (1 - f) * s);

         switch (hi) {
            case 0: r = v; g = t; b = p; break;
            case 1: r = q; g = v; b = p; break;
            case 2: r = p; g = v; b = t; break;
            case 3: r = p; g = q; b = v; break;
            case 4: r = t; g = p; b = v; break;
            default: r = v; g = p; b = q; break;
         }
      }
}

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