java 图片文件格式转换

java 图片文件格式转换(多页tif转jpg 、jpg转tif)

package util;

import java.awt.image.RenderedImage;

import java.awt.image.renderable.ParameterBlock;

import java.io.File;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.OutputStream;

import java.util.logging.Logger;

import javax.media.jai.JAI;

import javax.media.jai.RenderedOp;

import com.sun.media.jai.codec.FileSeekableStream;

import com.sun.media.jai.codec.ImageCodec;

import com.sun.media.jai.codec.ImageDecoder;

import com.sun.media.jai.codec.ImageEncoder;

import com.sun.media.jai.codec.JPEGEncodeParam;

import com.sun.media.jai.codec.TIFFEncodeParam;

/**

 *

 * @author 李小家

 *

 */

public class ImageConvert {

    private static Logger logger = Logger.getLogger(ImageConvert.class.getName());

    public void tif2Jpg(String fileAbsolutePath) {

        if (fileAbsolutePath == null || "".equals(fileAbsolutePath.trim())){

            return ;

        }

        if (!new File(fileAbsolutePath).exists()){

            logger.info("系统找不到指定文件【"+fileAbsolutePath+"】");

            return ;

        }

        FileSeekableStream fileSeekStream = null;

        try {

            fileSeekStream = new FileSeekableStream(fileAbsolutePath);

            TIFFEncodeParam tiffEncodeParam = new TIFFEncodeParam();

            JPEGEncodeParam jpegEncodeParam = new JPEGEncodeParam();

            ImageDecoder dec = ImageCodec.createImageDecoder("tiff", fileSeekStream, null);

            int count = dec.getNumPages();

            tiffEncodeParam.setCompression(TIFFEncodeParam.COMPRESSION_GROUP4);

            tiffEncodeParam.setLittleEndian(false);

            logger.info("该tif文件共有【" + count + "】页");

            String filePathPrefix = fileAbsolutePath.substring(0, fileAbsolutePath.lastIndexOf("."));

            for (int i = 0; i < count; i++) {

                RenderedImage renderedImage = dec.decodeAsRenderedImage(i);

                File imgFile = new File(filePathPrefix + "_" + i + ".jpg");

                logger.info("每页分别保存至： " + imgFile.getCanonicalPath());

                ParameterBlock pb = new ParameterBlock();

                pb.addSource(renderedImage);

                pb.add(imgFile.toString());

                pb.add("JPEG");

                pb.add(jpegEncodeParam);

                RenderedOp renderedOp = JAI.create("filestore",pb);

                renderedOp.dispose();

            }

        } catch (IOException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        } finally {

            if (fileSeekStream != null){

                try {

                    fileSeekStream.close();

                } catch (IOException e) {

                }

                fileSeekStream = null;

            }

        }

    }

    public void jpg2Tif(String fileAbsolutePath) {

        OutputStream outputStream = null;

        try {

            RenderedOp renderOp = JAI.create("fileload", fileAbsolutePath);

            String tifFilePath = fileAbsolutePath.substring(0, fileAbsolutePath.lastIndexOf("."))+".tif";

            outputStream = new FileOutputStream(tifFilePath);

            TIFFEncodeParam tiffParam = new TIFFEncodeParam();

            ImageEncoder imageEncoder = ImageCodec.createImageEncoder("TIFF", outputStream, tiffParam);

            imageEncoder.encode(renderOp);

            logger.info("jpg2Tif 保存至： " + tifFilePath);

        } catch (FileNotFoundException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        } catch (IOException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        } finally {

            if (outputStream != null){

                try {

                    outputStream.close();

                } catch (IOException e) {

                }

                outputStream = null;

            }

        }

    }

    public static void main(String args[]) throws Exception{

        ImageConvert imageConvert = new ImageConvert();

        /* tif 转 jpg 格式*/

        imageConvert.tif2Jpg("d:/TIF001.TIF");

        /* jpg 转 tif 格式*/

        imageConvert.jpg2Tif("d:/1.jpg");

    }

}

依赖JAI 包(jai_codec.jar和jai_core.jar)