java 图片文件格式转换(多页tif转jpg 、jpg转tif)

时间:2022-11-11 03:16:58
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)