Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright (C) Stichting Akvo (Akvo Foundation)
 *
 * This file is part of Akvo Caddisfly.
 *
 * Akvo Caddisfly is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Akvo Caddisfly is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Akvo Caddisfly. If not, see <http://www.gnu.org/licenses/>.
 */

import android.graphics.Color;

public class Main {
    /**
     * Get the brightness of a given color
     *
     * @param color The color
     * @return The brightness value
     */
    public static int getBrightness(int color) {
        int r = Color.red(color);
        int g = Color.green(color);
        int b = Color.blue(color);

        return (int) Math.sqrt(r * r * .241 + g * g * .691 + b * b * .068);
    }
}