Java BufferedImage Transparent transparentBG(BufferedImage image, Boolean transparent)

Description

Returns the same image with transparent background instead of white or vice versa.

License

Open Source License

Parameter

Parameter	Description
image	The original image
transparent	True in case we want the output image to have transparent background or false if we want it white

Return

The converted image

Declaration

public static BufferedImage transparentBG(BufferedImage image, Boolean transparent) 

Method Source Code

//package com.java2s;
/**//w w w  .ja v a2  s  . com
 * monimix - monochrome image mix: it combines monochrome images to one
 * Copyright (C) 2012 Periklis Ntanasis <pntanasis@gmail.com>
 *
 * This program 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.
 *
 * 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 General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program. If not, see <http://www.gnu.org/licenses/>.
 */

import java.awt.Color;
import java.awt.image.BufferedImage;

public class Main {
    /**
     * Returns the same image with transparent background instead of white or
     * vice versa. Creates a temp image to surpass the transparency issues.
     *
     * @param image The original image
     * @param transparent True in case we want the output image to have
     * transparent background or false if we want it white
     * @return The converted image
     */
    public static BufferedImage transparentBG(BufferedImage image, Boolean transparent) {
        BufferedImage tmpImg = new BufferedImage(image.getWidth(), image.getHeight(),
                BufferedImage.TYPE_4BYTE_ABGR);
        for (int w = 0; w < image.getWidth(); w++) {
            for (int h = 0; h < image.getHeight(); h++) {
                if (image.getRGB(w, h) == Color.WHITE.getRGB() && transparent) {
                    tmpImg.setRGB(w, h, 0);
                } else if (image.getRGB(w, h) == 0 && !transparent) {
                    tmpImg.setRGB(w, h, Color.WHITE.getRGB());
                } else {
                    tmpImg.setRGB(w, h, image.getRGB(w, h));
                }
            }
        }
        return tmpImg;
    }
}

Related

1. makeTransparency(BufferedImage image, int color)
2. makeTranspBufferedImage(Image image)
3. nonTransparentPixels(BufferedImage image)
4. pickBestTransparency(BufferedImage image)
5. setTranformImagePixels(BufferedImage origImg, Color paramColor, int colorRangePerc, Vector transPixel, Shape cutoutShape)
6. transparentColor(BufferedImage src, Color trColor)