C# RGB HSV转换

1.RGB转HSV

//RGB(0~1)
public static float[] RGB2HSV(float R, float G, float B)
{
	float max = Math.Max(R, Math.Max(G, B));
	float min = Math.Min(R, Math.Min(G, B));
	float V = max;
	float S = (max - min) / max;
	float H = 0;
	if (R == max)
	{
		H = (G - B) / (max - min) * 60;
	}
	if (G == max)
	{
		H = 120 + (B - R) / (max - min) * 60;
	}
	if (B == max)
	{
		H = 240 + (R - G) / (max - min) * 60;
	}
	if (H < 0)
	{
		H += 360;
	}
	return [H, S, V];
}

2.HSV转RGB

	public static float[] HSV2RGB(float H, float S, float V)
	{
		float R = 0, G = 0, B = 0;
		if (S == 0)
		{
			R = G = B = V;
		}
		else
		{
			H /= 60;
		}
		int i = (int)Math.Floor(H);
		float f = H - i;
		float a = V * (1 - S);
		float b = V * (1 - S * f);
		float c = V * (1 - S * (1 - f));
		switch (i)
		{
			case 0:
				R = V; 
				G = c; 
				B = a;