Java HSV Color to HSB HSVtoRGB(float[] hsv, float[] rgb)

Description

Convert an HSV color to RGB representation.

License

BSD License

Declaration

public static void HSVtoRGB(float[] hsv, float[] rgb) 

Method Source Code

//package com.java2s;
//License from project: BSD License 

public class Main {
    /** //  w w w . j a  va2 s  .  co m
     * Convert an HSV color to RGB representation. It is assumed that all RBG
     * and HSV values are in the range 0-1 (as opposed to the typical HSV ranges
     * of [0-360], [0-100], [0-100]).
     */
    public static void HSVtoRGB(float[] hsv, float[] rgb) {
        float f, p, q, t, hRound;
        int hIndex;
        float h, s, v;

        h = hsv[0];
        s = hsv[1];
        v = hsv[2];

        if (h < 0) {
            h = 0;
        } else if (h >= 1) {
            h = 0;
        }
        hRound = (int) (h * 6.0);
        hIndex = ((int) hRound) % 6;
        f = (h * 6.0f) - hRound;
        p = v * (1.0f - s);
        q = v * (1.0f - f * s);
        t = v * (1.0f - (1.0f - f) * s);

        switch (hIndex) {
        case 0:
            rgb[0] = v;
            rgb[1] = t;
            rgb[2] = p;
            break;
        case 1:
            rgb[0] = q;
            rgb[1] = v;
            rgb[2] = p;
            break;
        case 2:
            rgb[0] = p;
            rgb[1] = v;
            rgb[2] = t;
            break;
        case 3:
            rgb[0] = p;
            rgb[1] = q;
            rgb[2] = v;
            break;
        case 4:
            rgb[0] = t;
            rgb[1] = p;
            rgb[2] = v;
            break;
        case 5:
            rgb[0] = v;
            rgb[1] = p;
            rgb[2] = q;
            break;
        }
    }
}

Related

1. hsvToRgb(float h, float s, float v, int[] rgb)
2. hsvToRGB(float hue, float saturation, float value)
3. hsvToRgb(float hue, float saturation, float value)
4. hsvToRGB(float p_181758_0_, float p_181758_1_, float p_181758_2_)
5. HSVToRGB(float... hsv)
6. hsvToRgb(int hue, int saturation, int value)