Java BufferedImage Operation greyScale(BufferedImage image)

Description

turns a Buffered Image greyscale

License

Apache License

Parameter

Parameter	Description
image	base image

Return

a new BufferedImage with TYPE_BYTE_GRAY

Declaration

public static BufferedImage greyScale(BufferedImage image) 

Method Source Code

//package com.java2s;
/*    Copyright 2017 Ton Ly
     /*from  w ww.ja v a  2s.c om*/
  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at
     
  http://www.apache.org/licenses/LICENSE-2.0
     
  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
*/

import java.awt.*;
import java.awt.image.BufferedImage;

public class Main {
    /**
     * turns a Buffered Image greyscale
     *
     * @param image base image
     * @return a new BufferedImage with TYPE_BYTE_GRAY
     */
    public static BufferedImage greyScale(BufferedImage image) {
        BufferedImage gs = new BufferedImage(image.getWidth(), image.getHeight(), BufferedImage.TYPE_BYTE_GRAY);
        Graphics2D g2 = (Graphics2D) gs.getGraphics();
        g2.drawImage(image, 0, 0, null);
        g2.dispose();
        return gs;
    }
}

Related

1. generate(int w, int h, BufferedImage img)
2. generateBufferedImageFromComponent(Component component)
3. generateImageHash(BufferedImage image)
4. generateOutline(BufferedImage source, Color color, boolean alpha)
5. gradientMask(BufferedImage img, float start, float stop)
6. grid(BufferedImage image, int between)
7. height(BufferedImage image, Double measurementLatitude, Double measurementLongitude)
8. highlight(BufferedImage img, Color source, Color dest)
9. hitTest(BufferedImage image, int x, int y)