这么简单的问题用得着那么难的想法么?
import java.io.File;
import java.io.FileOutputStream;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.image.BufferedImage;
import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
public class JpgTest {
public void JpgTset() throws Exception{
File _file = new File("/Order005-0001.jpg");
Image src = javax.imageio.ImageIO.read(_file);
int wideth=src.getWidth(null);
int height=src.getHeight(null);
BufferedImage tag = new BufferedImage(wideth/2,height/2,BufferedImage.TYPE_INT_RGB);
tag.getGraphics().drawImage(src,0,0,wideth/2,height/2,null); FileOutputStream out=new FileOutputStream("newfile.jpg");
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
encoder.encode(tag); //近JPEG??
//System.out.print(width+"*"+height);
out.close();
}
}
import java.io.File;
import java.io.FileOutputStream;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.image.BufferedImage;
import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
public class JpgTest {
public void JpgTset() throws Exception{
File _file = new File("/Order005-0001.jpg");
Image src = javax.imageio.ImageIO.read(_file);
int wideth=src.getWidth(null);
int height=src.getHeight(null);
BufferedImage tag = new BufferedImage(wideth/2,height/2,BufferedImage.TYPE_INT_RGB);
tag.getGraphics().drawImage(src,0,0,wideth/2,height/2,null); FileOutputStream out=new FileOutputStream("newfile.jpg");
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
encoder.encode(tag); //近JPEG??
//System.out.print(width+"*"+height);
out.close();
}
}
你主要使用到了这个方法的第4,5个参数。不错不错