多页单个tif文件转换为多个jpg资料

多页单个tif文件转换为多个jpg文件

import java.io.*;

import com.sun.media.jai.codec.FileSeekableStream;
import com.sun.media.jai.codec.ImageDecoder;
import com.sun.media.jai.codec.ImageCodec;
import com.sun.media.jai.codec.TIFFEncodeParam;
import com.sun.media.jai.codec.TIFFDecodeParam;
import com.sun.media.jai.codec.JPEGEncodeParam;
?
import java.awt.image.RenderedImage;
import javax.media.jai.RenderedOp;
import javax.media.jai.JAI;
import java.awt.image.renderable.ParameterBlock;

public class MultiPageRead {

??? public static void main(String[] args) throws IOException {
??????? new MultiPageRead().doitJAI();
??? }
?
??? public void? doitJAI() throws IOException {
??????? FileSeekableStream ss = new FileSeekableStream("./zhaoming.tif");
??????? TIFFDecodeParam param0 = null;
??????? TIFFEncodeParam param = new TIFFEncodeParam();
??????? JPEGEncodeParam param1 = new JPEGEncodeParam();
??????? ImageDecoder dec = ImageCodec.createImageDecoder("tiff", ss, param0);
??????? int count = dec.getNumPages();
??????? param.setCompression(TIFFEncodeParam.COMPRESSION_GROUP4);
??????? param.setLittleEndian(false); // Intel
??????? System.out.println("This TIF has " + count + " image(s)");
??????? for (int i = 0; i < count; i++) {
??????????? RenderedImage page = dec.decodeAsRenderedImage(i);
??????????? File f = new File("./fk_" + i + ".jpg");
??????????? System.out.println("Saving " + f.getCanonicalPath());
??????????? ParameterBlock pb = new ParameterBlock();
??????????? pb.addSource(page);
??????????? pb.add(f.toString());
??????????? pb.add("JPEG");
??????????? pb.add(param1);
??????????? //JAI.create("filestore",pb);
??????????? RenderedOp r = JAI.create("filestore",pb);
??????????? r.dispose();
???????????
??????????? //RenderedOp op = JAI.create("filestore", page, "./zhaoming_" + i + ".jpg", "JPEG", param1);
??????? }
??? }
}