function?bit_seq=ACEncoding（xy）?
Z=x;
v0=y;
R=abs（y）;
if?R==1;amplen=1;
elseif（R?>=???2?&?R?<=????3）;amplen?=?2;
elseif（R?>=???4?&?R?<=????7）;amplen?=?3;
elseif（R?>=???8?&?R?<=???15）;amplen?=?4;
elseif（R?>=??16?&?R?<=???31）;amplen?=?5;
elseif（R?>=??32?&?R?<=???63）;amplen?=?6;
elseif（R?>=??64?&?R?<=??127）;amplen?=?7;
elseif（R?>=?128?&?R?<=??255）;amplen?=?8;
elseif（R?>=?256?&?R?<=??511）;amplen?=?9;
elseif（R?>=?512?&?R?<=?1023）;amplen?=?10;
end?
if?（Z==0?&?amplen==1）;?codelen=2;accode=0;
elseif??（Z==0?&?amplen==2）;codelen=2;accode=1;
elseif??（Z==0?&?amplen==3）;codelen=3;accode=4;
elseif??（Z==0?&?amplen==4）;codelen=4;accode=11;
elseif??（Z==0?&?amplen==5）;codelen=5;accode=26;
elseif??（Z==0?&?amplen==6）;codelen=7;accode=120;
elseif??（Z==0?&?amplen==7）;codelen=8;accode=248;
elseif??（Z==0?&?amplen==8）;codelen=10;accode=1014;
elseif??（Z==0?&?amplen==9）;codelen=16;accode=65410;
elseif?（Z==0?&?amplen==10）;codelen=16;accode=65411;
????
elseif??（Z==1?&?amplen==1）;?codelen=4;accode=12;?
elseif??（Z==1?&?amplen==2）;?codelen=5;accode=27;??
elseif??（Z==1?&?amplen==3）;?codelen=7;accode=121;?
elseif??（Z==1?&?amplen==4）;?codelen=9;accode=502;??
elseif??（Z==1?&?amplen==5）;codelen=11;accode=2038;?
elseif??（Z==1?&?amplen==6）;codelen=16;accode=65412;
elseif??（Z==1?&?amplen==7）;codelen=16;accode=65413;
elseif??（Z==1?&?amplen==8）;codelen=16;accode=65414;
elseif??（Z==1?&?amplen==9）;codelen=16;accode=65415;
elseif?（Z==1?&?amplen==10）;codelen=16;accode=65416;
????
elseif?（Z==2?&?amplen==1）;codelen=5;accode=28;
elseif?（Z==2?&?amplen==2）;codelen=8;accode=249;
elseif?（Z==2?&?amplen==3）;codelen=10;accode=1015;
elseif?（Z==2?&?amplen==4）;codelen=12;accode=4084;
elseif?（Z==2?&?amplen==5）;codelen=16;accode=65417;
elseif?（Z==2?&?amplen==6）;codelen=16;accode=65418;
elseif?（Z==2?&?amplen==7）;codelen=16;accode=65419;
elseif?（Z==2?&?amplen==8）;codelen=16;accode=65420;
elseif?（Z==2?&?amplen==9）;codelen=16;accode=65421;
elseif?（Z==2?&?amplen==10）;codelen=16;accode=65422;
????
????
elseif?（Z==3?&?amplen==1）;codelen=6;accode=58;
elseif?（Z==3?&?amplen==2）;codelen=9;accode=503;
elseif?（Z==3?&?amplen==3）;codelen=12;accode=4085;
elseif?（Z==3?&?amplen==4）;codelen=16;accode=65423;
elseif?（Z==3?&?amplen==5）;codelen=16;accode=65424;
elseif?（Z==3?&?amplen==6）;codelen=16;accode=65425;
elseif?（Z==3?&?amplen==7）;codelen=16;accode=65426;
elseif?（Z==3?&?amplen==8）;codelen=16;accode=65427;
elseif?（Z==3?&?amplen==9）;codelen=16;accode=65428;
elseif?（Z==3?&?amplen==10）;codelen=16;accode=65429;
????
????
elseif?（Z==4?&?amplen==1）;codelen=6;accode=59;
elseif?（Z==4?&?amplen==2）;codelen=10;accode=1016;
elseif?（Z==4?&?amplen==3）;codelen=16;accode=65430;
elseif?（Z==4?&?amplen==4）;codelen=16;accode=65431;
elseif?（Z==4?&?amplen==5）;codelen=16;accode=65432;
elseif?（Z==4?&?amplen==6）;codelen=16;accode=65433;
elseif?（Z==4?&?amplen==7）;codelen=16;accode=65434;
elseif?（Z==4?&?amplen==8）;codelen=16;accode=65435;?
elseif?（Z==4?&?amplen==9）;codelen=16;accod

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????9087??2013-03-21?12:00??20130320自編JPEG圖像壓縮程序\ACEncoding.m
?????文件????????1022??2013-03-21?09:13??20130320自編JPEG圖像壓縮程序\DCEncoding.m
?????文件????????4623??2013-03-21?16:40??20130320自編JPEG圖像壓縮程序\Zprogram.m
?????文件??????196662??2011-05-14?10:30??20130320自編JPEG圖像壓縮程序\lena.bmp
?????文件?????????309??2013-03-21?08:49??20130320自編JPEG圖像壓縮程序\zigzag.m
?????目錄???????????0??2013-04-16?07:47??20130320自編JPEG圖像壓縮程序\