org.modelibra.util.ImageHandler.java Source code

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Here is the source code for org.modelibra.util.ImageHandler.java

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/*
 * Modelibra
 *
 * 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.
 */
package org.modelibra.util;

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Iterator;

import javax.imageio.ImageIO;
import javax.imageio.ImageTypeSpecifier;
import javax.imageio.ImageWriter;
import javax.imageio.plugins.jpeg.JPEGImageWriteParam;
import javax.imageio.stream.ImageOutputStream;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGEncodeParam;
import com.sun.image.codec.jpeg.JPEGImageEncoder;

/**
 * Saves images as JPEG (.jpg or .jpeg) files.
 * 
 * @author Dzenan Ridjanovic
 * @version 2005-05-27
 */
public class ImageHandler {

    private static Log log = LogFactory.getLog(ImageHandler.class);

    /**
     * Saves an image to a jpeg file.
     * 
     * @param bi
     *            buffered image
     * @param file
     *            jpeg file
     * @param quality
     *            image quality
     */
    public static void saveImageToJPEGFile(BufferedImage bi, File file, float quality) throws IOException {
        FileOutputStream fos = new FileOutputStream(file);
        JPEGEncodeParam param = JPEGCodec.getDefaultJPEGEncodeParam(bi);
        param.setQuality(quality, false);
        JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(fos, param);
        encoder.encode(bi);
        fos.close();
    }

    /**
     * Saves an image to a jpeg file.
     * 
     * @param bi
     *            buffered image
     * @param file
     *            jpeg file
     * @param quality
     *            image quality
     */
    public static void saveImageToJPEGFile14(BufferedImage bi, File file, float quality) throws IOException {

        JPEGImageWriteParam param = new JPEGImageWriteParam(null);
        ImageTypeSpecifier type = new ImageTypeSpecifier(bi);
        param.setDestinationType(type);
        ImageOutputStream imgos = ImageIO.createImageOutputStream(file);
        Iterator<ImageWriter> writers = ImageIO.getImageWritersByFormatName("jpeg");
        ImageWriter writer = writers.next();
        writer.setOutput(imgos);
        writer.write(bi);
        imgos.close();
    }

    public static void main(String[] args) {
        Log4jConfigurator log4jConfigurator = new Log4jConfigurator();
        log4jConfigurator.configure();

        log.info("");
    }

}