function?acCodeOut=AcCode（zScanOut）
%交流系數(shù)編碼
%完成一個(gè)塊的交流編碼
%輸入z形掃描結(jié)果，輸出碼流
N=8;
num=N*N+1;i=N*N;
b=cell（1N*N）;
%b{j}O包括兩個(gè)部分，b{j}（1）表示連零個(gè)數(shù)，b{j}{2}表示幅度

%游程編碼開(kāi)始
while（i>1）%確定EOB前系數(shù)的長(zhǎng)度?%?后面連續(xù)0不編碼
????if（zScanOut（i）==0）
????????num=num-1;
????????i=i-1;
????else
????????break;
????end
end

i=2;
j=1;
while（i????zeroNum=0;
????while（zScanOut（i）==0）%確定連零個(gè)數(shù)
????????zeroNum=zeroNum+1;
????????i=i+1;
????????if（zeroNum==16）
????????????b{j}=[15?0];
????????????j=j+1;
????????????zeroNum=0;
????????end
????end
????b{j}=[zeroNum?zScanOut（i）];%b{j}（1）表示連零個(gè)數(shù)，b{j}{2}表示幅度
????j=j+1;
????i=i+1;
end
b{j}=[0?0];%EOB塊編碼

%游程編碼完畢

binacRange?=?cell（11）;?%幅度值二進(jìn)制編碼
forHuf?????=?cell（11）;?%Hufman編碼的輸入?yún)?shù)，每個(gè)元素包括兩個(gè)部分：游程長(zhǎng)度和binacRange長(zhǎng)度
hufCodeOut?=?cell（11）;
out????????=?cell（11）;

for?i=1:j
????binacRange{i}=dec2bin（abs（b{i}（2）））;
????binacRange{i}=binacRange{i}-48;
????if（b{i}（2）<0）
????????binacRange{i}=~binacRange{i};
????end
????
????acBits（i）=length（binacRange{i}）;%binacRange長(zhǎng)度
????if（b{i}（2）==0）?
????????acBits（i）=0;
????end
????forHuf{i}=[b{i}（1）?acBits（i）];%forHuf為“行程/尺寸“
end


for?i=1:j
????hufCodeOut{i}?=?YAcHufCode（forHuf{i}）;%“行程/尺寸的霍夫曼碼
????out{i}????????=?[hufCodeOut{i}?binacRange{i}];%碼包括兩部分，即行程/尺寸的霍夫曼碼和幅度值編碼
????if（b{i}（2）==0）
????????out{i}=hufCodeOut{i};?%幅度為0，則其編碼長(zhǎng)度為0?%寫(xiě)?EOB?1010
????end
end


acCodeOut=out{1};
for?i=2:j
????acCodeOut=[acCodeOut?out{i}];
end
????

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件???????1639??2013-02-28?11:24??Jpeg_CoDec\AcCode.m

?????文件????????604??2013-02-26?17:06??Jpeg_CoDec\antiQuanY.m

?????文件???????1108??2013-02-26?17:06??Jpeg_CoDec\antiZscan.m

?????文件???????1088??2013-02-27?15:16??Jpeg_CoDec\debug_jpeg_codec.m

?????文件????????645??2013-02-28?13:55??Jpeg_CoDec\Gr_CoDec.m

?????文件????????949??2013-02-28?14:10??Jpeg_CoDec\Jpeg_Encode.m

?????文件????????139??2013-02-27?14:58??Jpeg_CoDec\main.m

?????文件???????1733??2013-02-27?13:39??Jpeg_CoDec\MakeTree.m

?????文件????????612??2013-02-26?17:06??Jpeg_CoDec\QuantyY.m

?????文件???????3411??2013-02-26?17:06??Jpeg_CoDec\smooth7x7_intp.asv

?????文件???????5560??2013-03-01?09:37??Jpeg_CoDec\UnCode.m

?????文件???????1021??2013-02-27?13:47??Jpeg_CoDec\UnHufCode.m

?????文件????????204??2013-02-28?10:06??Jpeg_CoDec\Untitled.m

?????文件??????12839??2013-02-27?13:50??Jpeg_CoDec\varable.m

?????文件??????14166??2013-02-27?11:22??Jpeg_CoDec\YAcHufCode.m

?????文件???????1197??2013-02-28?09:19??Jpeg_CoDec\YCode.m

?????文件????????951??2013-02-28?09:20??Jpeg_CoDec\YDcCode.m

?????文件???????1275??2013-02-26?17:06??Jpeg_CoDec\yuv422rgb.m

?????文件???????1005??2013-02-26?17:06??Jpeg_CoDec\ZScan.m

?????目錄??????????0??2014-11-24?17:46??Jpeg_CoDec

-----------?---------??----------?-----??----

????????????????50146????????????????????20