com.sight.facialrecog.util.ImageManipulation.java Source code

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Here is the source code for com.sight.facialrecog.util.ImageManipulation.java

Source

package com.sight.facialrecog.util;

/**
 * Created by sight on 6/14/17.
 */

/**
 * The MIT License
 *
 * Copyright (c) 2010-2012 www.myjeeva.com
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 */
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import org.apache.commons.codec.binary.Base64;

/**
 * @desc Image manipulation - Conversion
 *
 * @filename ImageManipulation.java
 * @author <a href="mailto:jeeva@myjeeva.com">Jeevanandam Madanagopal</a>
 * @copyright &copy; 2010-2012 www.myjeeva.com
 */
public class ImageManipulation {

    /**
     * @param args
     */
    public static void main(String[] args) {
        File file = new File("/home/sight/Pictures/imagetest/close.jpg");

        try {
            /*
             * Reading an Image file from file system
             */
            FileInputStream imageInFile = new FileInputStream(file);
            byte imageData[] = new byte[(int) file.length()];
            imageInFile.read(imageData);

            /*
             * Converting Image byte array into Base64 String
             */
            String imageDataString = encodeImage(imageData);
            System.out.println(imageDataString);

            /*
             * Converting a Base64 String into Image byte array
             */
            byte[] imageByteArray = decodeImage(imageDataString);

            /*
             * Write an image byte array into file system
             */
            FileOutputStream imageOutFile = new FileOutputStream(
                    "/home/sight/Pictures/imagetest/close-after-convert.jpg");
            imageOutFile.write(imageByteArray);

            imageInFile.close();
            imageOutFile.close();

            System.out.println("Image Successfully Manipulated!");
        } catch (FileNotFoundException e) {
            System.out.println("Image not found" + e);
        } catch (IOException ioe) {
            System.out.println("Exception while reading the Image " + ioe);
        }

    }

    /**
     * Encodes the byte array into base64 string
     * @param imageByteArray - byte array
     * @return String a {@link java.lang.String}
     */
    public static String encodeImage(byte[] imageByteArray) {
        return Base64.encodeBase64URLSafeString(imageByteArray);
    }

    /**
     * Decodes the base64 string into byte array
     * @param imageDataString - a {@link java.lang.String}
     * @return byte array
     */
    public static byte[] decodeImage(String imageDataString) {
        return Base64.decodeBase64(imageDataString);
    }

}