Convert color from HSV to RGB - Android Graphics

Android examples for Graphics:Color RGB Value

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Description

Convert color from HSV to RGB

Demo Code


//package com.java2s;

public class Main {
    /**//from  ww  w . j  a v a 2 s.  c  o  m
     *
     * @param h
     * @param s
     * @param v
     * @return
     */
    public static int[] HSVtoRGB(int h, int s, int v) {
        float f;
        int i, p, q, t;
        int[] rgb = new int[3];

        i = (int) Math.floor(h / 60.0f) % 6;
        f = (float) (h / 60.0f) - (float) Math.floor(h / 60.0f);
        p = (int) Math.round(v * (1.0f - (s / 255.0f)));
        q = (int) Math.round(v * (1.0f - (s / 255.0f) * f));
        t = (int) Math.round(v * (1.0f - (s / 255.0f) * (1.0f - f)));

        switch (i) {
        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;
        }

        return rgb;
    }
}

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