Rgb Color To Hsl Color - Android Graphics

Android examples for Graphics:Color RGB Value

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Description

Rgb Color To Hsl Color

Demo Code


//package com.java2s;

public class Main {
    public static void RgbToHsl(int red, int green, int blue, float hsl[]) {
        float r = (float) red / 255;
        float g = (float) green / 255;
        float b = (float) blue / 255;
        float max = Math.max(r, Math.max(g, b));
        float min = Math.min(r, Math.min(g, b));
        float f;/*from  w  ww. j ava2s  . co  m*/
        if (max == min)
            f = 0;
        else if (max == r && g >= b)
            f = (60 * (g - b)) / (max - min);
        else if (max == r && g < b)
            f = 360 + (60 * (g - b)) / (max - min);
        else if (max == g)
            f = 120 + (60 * (b - r)) / (max - min);
        else if (max == b)
            f = 240F + (60F * (r - g)) / (max - min);
        else
            f = 0;
        float f1 = (max + min) / 2;
        float f2;
        if (f1 != 0 && max != min) {
            if (0 < f1 && f1 <= 0.5) {
                f2 = (max - min) / (max + min);
            } else if (f1 == 0.5) {
                f2 = (max - min) / (2.0F - (max + min));
            } else {
                f2 = 0;
            }
        } else {
            f2 = 0.0F;
        }
        hsl[0] = f;
        hsl[1] = f2;
        hsl[2] = f1;
    }

    public static void RgbToHsl(int color, float hsl[]) {
        RgbToHsl(0xff & color >>> 16, 0xff & color >>> 8, color & 0xff, hsl);
    }
}

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