c sharp 写一个HSV转RGB

下面是C#代码实现HSV转RGB的示例:

using System;
using System.Drawing;

public static class HsvToRgb
{
    public static Color Convert(double hue, double saturation, double value)
    {
        int hi = Convert.ToInt32(Math.Floor(hue / 60)) % 6;
        double f = hue / 60 - Math.Floor(hue / 60);

        value = value * 255;
        int v = Convert.ToInt32(value);
        int p = Convert.ToInt32(value * (1 - saturation));
        int q = Convert.ToInt32(value * (1 - f * saturation));
        int t = Convert.ToInt32(value * (1 - (1 - f) * saturation));

        if (hi == 0)
            return Color.FromArgb(255, v, t, p);
        else if (hi == 1)
            return Color.FromArgb(255, q, v, p);
        else if (hi == 2)
            return Color.FromArgb(255, p, v, t);
        else if (hi == 3)
            return Color.FromArgb(255, p, q, v);
        else if (hi == 4)
            return Color.FromArgb(255, t, p, v);
        else
            return Color.FromArgb(255, v, p, q);
    }
}

使用时调用HsvToRgb.Convert(hue,saturation,value)函数，传入hue(色相)，saturation(饱和度)，value(亮度)三个值，返回值为RGB格式的Color类型。