Java BufferedImage to RGB getRgbFromImage(BufferedImage image)

Description

Get RGB data array from given image

License

Open Source License

Parameter

Parameter	Description
image	Image

Return

List with three elements of two-dimensional int's - R, G and B

Declaration

public static List<int[][]> getRgbFromImage(BufferedImage image) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.awt.image.BufferedImage;

import java.util.ArrayList;
import java.util.List;

public class Main {
    /**/*  w w w  . j  ava 2s.co m*/
     * Get RGB data array from given image
     * 
     * @param image Image
     * @return List with three elements of two-dimensional int's - R, G and B
     */
    public static List<int[][]> getRgbFromImage(BufferedImage image) {
        List<int[][]> rgb = new ArrayList<int[][]>();
        int[][] r = null;
        int[][] g = null;
        int[][] b = null;
        int width = 0;
        int height = 0;

        width = image.getWidth();
        height = image.getHeight();

        r = new int[height][width];
        g = new int[height][width];
        b = new int[height][width];

        for (int i = 0; i < height; i++) {
            for (int j = 0; j < width; j++) {
                r[i][j] = (image.getRGB(j, i) >> 16) & 0xFF;
                g[i][j] = (image.getRGB(j, i) >> 8) & 0xFF;
                b[i][j] = (image.getRGB(j, i) >> 0) & 0xFF;
            }
        }

        rgb.add(r);
        rgb.add(g);
        rgb.add(b);

        return rgb;
    }
}

Related

1. getRGB(BufferedImage image, int x, int y, int width, int height, int[] pixels)
2. getRGB(BufferedImage img)
3. getRGBPixels(BufferedImage img)
4. imageToMatrix(BufferedImage image)
5. imageToPixels(BufferedImage image)
6. imageToRGBABuffer(BufferedImage img)