//?Version?1.0a
//?Copyright?（C）?1998?James?R.?Weeks?and?BioElectroMech.
//?Visit?BioElectroMech?at?www.obrador.com.??Email?James@obrador.com.

//?See?license.txt?for?details?about?the?allowed?used?of?this?software.
//?This?software?is?based?in?part?on?the?work?of?the?Independent?JPEG?Group.
//?See?IJGreadme.txt?for?details?about?the?Independent?JPEG?Group‘s?license.

//?This?encoder?is?inspired?by?the?Java?Jpeg?encoder?by?Florian?Raemy
//?studwww.eurecom.fr/~raemy.
//?It?borrows?a?great?deal?of?code?and?structure?from?the?Independent
//?Jpeg?Group‘s?Jpeg?6a?library?Copyright?Thomas?G.?Lane.
//?See?license.txt?for?details.

import?java.applet.applet;
import?java.awt.*;
import?java.awt.image.*;
import?java.io.*;
import?java.util.*;
import?java.lang.*;

/*
*?JpegEncoder?-?The?JPEG?main?program?which?performs?a?jpeg?compression?of
*?an?image.
*/

public?class?JpegEncoder?extends?frame
{
????Thread?runner;
????BufferedOutputStream?outStream;
????Image?image;
????JpegInfo?JpegObj;
????Huffman?Huf;
????DCT?dct;
????int?imageHeight?imageWidth;
????int?Quality;
????int?code;
????public?static?int[]?jpegNaturalOrder?=?{
??????????0??1??8?16??9??2??3?10
?????????17?24?32?25?18?11??4??5
?????????12?19?26?33?40?48?41?34
?????????27?20?13??6??7?14?21?28
?????????35?42?49?56?57?50?43?36
?????????29?22?15?23?30?37?44?51
?????????58?59?52?45?38?31?39?46
?????????53?60?61?54?47?55?62?63
????????};

????public?JpegEncoder（Image?image?int?quality?OutputStream?out）
????{
????????????????MediaTracker?tracker?=?new?MediaTracker（this）;
????????????????tracker.addImage（image?0）;
????????????????try?{
????????????????????????tracker.waitForID（0）;
????????????????}
????????????????catch?（InterruptedException?e）?{
//?Got?to?do?something?
????????????????}
????????/*
????????*?Quality?of?the?image.
????????*?0?to?100?and?from?bad?image?quality?high?compression?to?good
????????*?image?quality?low?compression
????????*/
????????Quality=quality;

????????/*
????????*?Getting?picture?information
????????*?It?takes?the?Width?Height?and?RGB?scans?of?the?image.?
????????*/
????????JpegObj?=?new?JpegInfo（image）;

????????imageHeight=JpegObj.imageHeight;
????????imageWidth=JpegObj.imageWidth;
????????outStream?=?new?BufferedOutputStream（out）;
????????dct?=?new?DCT（Quality）;
????????Huf=new?Huffman（imageWidthimageHeight）;
????}

????public?void?setQuality（int?quality）?{
????????dct?=?new?DCT（quality）;
????}

????public?int?getQuality（）?{
????????return?Quality;
????}

????public?void?Compress（）?{
????????WriteHeaders（outStream）;
????????WriteCompressedData（outStream）;
????????WriteEOI（outStream）;
????????try?{
????????????????outStream.flush（）;
????????}?catch?（IOException?e）?{
????????????????System.out.println（“IO?Error:?“?+?e.getMessage（））;
????????}
????}

????public?void?WriteCompressedData（BufferedOutputStream