HSVtoRGB and vice versa test

HSVandRGBtest.java

public class HSVtoRGB {

	
	public static void main(String[] args) {
		float []hsbVal = null;
		
		hsbVal = RGBtoHSBfloat(180, 58, 58, hsbVal );
		int rgb =  HSBtoRGB(hsbVal[0], hsbVal[1], hsbVal[2]);
		int red = (rgb >> 16) & 0xFF;
		int green = (rgb >> 8) & 0xFF;
		int blue = rgb & 0xFF;
		
		System.out.println(hsbVal[0] + "\n" + hsbVal[1] + "\n"+ hsbVal[2]);
		
		
		System.out.println("red : " + red + "\nGreen : " + green + " \n blue : "  +blue );
		int[] HSB = RGBintToHSBint(red, green, blue);
		System.out.println("Hue : " + HSB[0] + "\nSaturation " + HSB[1] + "\nValue : "+ HSB[2] );
		
	}
	
	private static float[] RGBtoHSBfloat(int r, int g, int b, float[] hsbvals) {
        float hue, saturation, brightness;
        if (hsbvals == null) {
            hsbvals = new float[3];
        }
        int cmax = (r > g) ? r : g;
        if (b > cmax) cmax = b;
        int cmin = (r < g) ? r : g;
        if (b < cmin) cmin = b;

        brightness = ((float) cmax) / 255.0f;
        if (cmax != 0)
            saturation = ((float) (cmax - cmin)) / ((float) cmax);
        else
            saturation = 0;
        if (saturation == 0)
            hue = 0;
        else {
            float redc = ((float) (cmax - r)) / ((float) (cmax - cmin));
            float greenc = ((float) (cmax - g)) / ((float) (cmax - cmin));
            float bluec = ((float) (cmax - b)) / ((float) (cmax - cmin));
            if (r == cmax)
                hue = bluec - greenc;
            else if (g == cmax)
                hue = 2.0f + redc - bluec;
            else
                hue = 4.0f + greenc - redc;
            hue = hue / 6.0f;
            if (hue < 0)
                hue = hue + 1.0f;
        }
        hsbvals[0] = hue;
        hsbvals[1] = saturation;
        hsbvals[2] = brightness;
        return hsbvals;
    }
	
	public static int[] RGBintToHSBint(int red, int green, int blue)  {
		int  []HSB = new int[3];
		
		float []hsbVal = null;
		
		hsbVal = RGBtoHSBfloat(red, green, blue, hsbVal);
		
		HSB[0] = (int) ((int)Math.floor(hsbVal[0] *255));
		HSB[1] = (int) ((int)Math.floor(hsbVal[1] *255));
		HSB[2] = (int) ((int)Math.floor(hsbVal[2] *255));
		
		//System.out.println((int)Math.floor(1*255));;
		return HSB;
		
	}
	
	
	
    public static int HSBtoRGB(float hue, float saturation, float brightness) {
        int r = 0, g = 0, b = 0;
        if (saturation == 0) {
            r = g = b = (int) (brightness * 255.0f + 0.5f);
        } else {
            float h = (hue - (float)Math.floor(hue)) * 6.0f;
            float f = h - (float)java.lang.Math.floor(h);
            float p = brightness * (1.0f - saturation);
            float q = brightness * (1.0f - saturation * f);
            float t = brightness * (1.0f - (saturation * (1.0f - f)));
            switch ((int) h) {
            case 0:
                r = (int) (brightness * 255.0f + 0.5f);
                g = (int) (t * 255.0f + 0.5f);
                b = (int) (p * 255.0f + 0.5f);
                break;
            case 1:
                r = (int) (q * 255.0f + 0.5f);
                g = (int) (brightness * 255.0f + 0.5f);
                b = (int) (p * 255.0f + 0.5f);
                break;
            case 2:
                r = (int) (p * 255.0f + 0.5f);
                g = (int) (brightness * 255.0f + 0.5f);
                b = (int) (t * 255.0f + 0.5f);
                break;
            case 3:
                r = (int) (p * 255.0f + 0.5f);
                g = (int) (q * 255.0f + 0.5f);
                b = (int) (brightness * 255.0f + 0.5f);
                break;
            case 4:
                r = (int) (t * 255.0f + 0.5f);
                g = (int) (p * 255.0f + 0.5f);
                b = (int) (brightness * 255.0f + 0.5f);
                break;
            case 5:
                r = (int) (brightness * 255.0f + 0.5f);
                g = (int) (p * 255.0f + 0.5f);
                b = (int) (q * 255.0f + 0.5f);
                break;
            }
        }
        return 0xff000000 | (r << 16) | (g << 8) | (b << 0);
    }
	
	
	
	
}