convert Color To Gray - Java 2D Graphics

Java examples for 2D Graphics:Color

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Description

convert Color To Gray

Demo Code

/*!/*from   w  ww .  j a  v a  2 s.  c  om*/
 * This program is free software; you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
 * Foundation.
 *
 * You should have received a copy of the GNU Lesser General Public License along with this
 * program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
 * or from the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * This program 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 Lesser General Public License for more details.
 *
 * Copyright (c) 2002-2013 Pentaho Corporation..  All rights reserved.
 */
//package com.java2s;
import java.awt.Color;

public class Main {
    public static Color convertToGray(final Color c, final float x) {
        final float[] hsb = Color.RGBtoHSB(c.getRed(), c.getGreen(),
                c.getBlue(), null);
        return new Color(Color.HSBtoRGB(hsb[0], hsb[1] * x, hsb[2]));
    }
}

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