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package bitmaps;

import java.awt.*;

import java.awt.image.BufferedImage;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

/**

* @author CasterWx AntzUhl

* @site https://github.com/CasterWx

* @company Henu

* @create 2019-01-24-18:13

*/

public class GifReload {

public static void main(String[] args) {

GifRunBackward("gif\\1.gif","gif\\1-get.gif");

GifRunBackward("gif\\2.gif","gif\\2-get.gif");

GifRunBackward("gif\\3.gif","gif\\3-get.gif");

}

// GIF倒放

public static void GifRunBackward(String inputFileName,String outFileName) {

try{

GifDecoder gd = new GifDecoder();

//要处理的图片

int status = gd.read(new FileInputStream(new File(inputFileName)));

if (status != GifDecoder.STATUS_OK) {

return;

}

AnimatedGifEncoder ge = new AnimatedGifEncoder();

//这里是关键，设置要替换成透明的颜色

ge.setTransparent(Color.WHITE);

//

ge.start(new FileOutputStream(new File(outFileName)));

ge.setRepeat(0);

for (int i = gd.getFrameCount()-1; i >=0 ; i--) {

//取得gif的每一帧

BufferedImage frame = gd.getFrame(i);

Graphics2D gs = frame.createGraphics() ;

gs.drawImage(frame,0,0,frame.getWidth(),frame.getHeight(),null);

//File imagefile = new File("P"+i+".png");

//ImageIO.write(frame,"png",imagefile);

//你可以对每一帧做点什么，比如缩放什么的，这里就什么都不做了

int delay = gd.getDelay(i);

ge.setDelay(delay);

ge.addFrame(frame);

}

//输出图片

ge.finish();

}catch(Exception e){

e.printStackTrace();

}

}

}