Converts an image to a PNG stored in a byte array. - Java 2D Graphics

Java examples for 2D Graphics:BufferedImage Convert

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Description

Converts an image to a PNG stored in a byte array.

Demo Code

/*/*  w ww  .  j av a2s  .com*/
 * Copyright 2004-2008, Thorbj?rn Lindeijer <thorbjorn@lindeijer.nl>
 * Copyright 2004-2008, Adam Turk <aturk@biggeruniverse.com>
 *
 * This file is part of libtiled-java.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *    1. Redistributions of source code must retain the above copyright notice,
 *       this list of conditions and the following disclaimer.
 *
 *    2. Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
 * EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
//package com.java2s;
import java.awt.Image;
import java.awt.image.BufferedImage;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import javax.imageio.ImageIO;

public class Main {
    /**
     * Converts an image to a PNG stored in a byte array.
     *
     * @param image
     * @return a byte array with the PNG data
     */
    static public byte[] imageToPNG(Image image) {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();

        try {
            BufferedImage buffer = new BufferedImage(image.getWidth(null),
                    image.getHeight(null), BufferedImage.TYPE_INT_ARGB);

            buffer.createGraphics().drawImage(image, 0, 0, null);
            ImageIO.write(buffer, "PNG", baos);
            baos.close();
        } catch (IOException e) {
            e.printStackTrace();
        }

        return baos.toByteArray();
    }
}

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