Java BufferedImage from Byte Array fromIntIntensityScaled(int width, int height, int[] data)

Description

from Int Intensity Scaled

License

Apache License

Declaration

public static BufferedImage fromIntIntensityScaled(int width, int height, int[] data) 

Method Source Code

//package com.java2s;
/*//from  w ww.j a  va2 s.c  o m
 * Copyright 2005 Tom Gibara
 * 
 * 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.image.BufferedImage;

public class Main {
    public static BufferedImage fromIntIntensityScaled(int width, int height, int[] data) {
        int max = 0;
        for (int d : data)
            if (d > max)
                max = d;
            else if (-d > max)
                max = -d;

        BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_BYTE_GRAY);
        byte[] bytes = new byte[data.length];
        if (max > 0) {
            for (int i = 0; i < bytes.length; i++) {
                bytes[i] = (byte) (Math.abs(data[i]) * 255 / max);
            }
        }
        image.getWritableTile(0, 0).setDataElements(0, 0, width, height, bytes);
        image.releaseWritableTile(0, 0);
        return image;
    }
}

Related

1. fromByteArray(byte[] byteArray)
2. fromByteArray(byte[] bytes)
3. fromByteArray(byte[] data)
4. fromByteArray(byte[] imagebytes)
5. fromByteIntensity(BufferedImage image, byte[] bytes)
6. fromIntRGB(BufferedImage image, int[] rgb)
7. getBufferedImage(byte[] imageBytes)
8. getImage(byte[] bytes)
9. getImage(byte[] imageBytes)