Java操作应用——图片缩放

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import  java.awt.Graphics2D;

import  java.awt.geom.AffineTransform;

import  java.awt.image.BufferedImage;

import  java.io.File;

import  javax.imageio.ImageIO;

public  class  RescaleImage {

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

     BufferedImage imgSource = ImageIO.read( new  File( "images//Image3.jpg" ));

     BufferedImage imgDestination =  new  BufferedImage( 100 ,  100 , BufferedImage.TYPE_INT_RGB);

     Graphics2D g = imgDestination.createGraphics();

     AffineTransform affinetransformation = AffineTransform.getScaleInstance( 2 ,  2 );

     g.drawRenderedImage(imgSource, affinetransformation);

     ImageIO.write(imgDestination,  "JPG" ,  new  File( "outImage.jpg" ));

   }

}