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    文件類型: .zip
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    發(fā)布日期: 2021-05-21
  • 語(yǔ)言: Matlab
  • 標(biāo)簽:

資源簡(jiǎn)介

提供了詳細(xì)的Matlab編解碼過程和程序，包括圖片格式轉(zhuǎn)換，零偏置轉(zhuǎn)化，DCT變換，量化，AC系數(shù)編碼，Z掃描，DC系數(shù)編碼，JPEG解碼，DCT反變換，圖像重構(gòu)等全部函數(shù)和實(shí)現(xiàn)過程等

資源截圖

代碼片段和文件信息 

function?[?row_nozeroes?]?=?check_coeff（?at）
%UNtitleD2?Summary?of?this?function?goes?here
%???Detailed?explanation?goes?here
AC_coeff=[0001100101111010111100011111000111111011011111111100000101111111110000011;
????11001101111110011111101101111111011011111111100001001111111110000101111111111000011011111111100001111111111110001000;
????11100111110011111110111111111110100111111111000100111111111100010101111111110001011111111111000110011111111100011011111111110001110;
????1110101111101111111111101011111111110001111111111111001000011111111100100011111111110010010111111111001001111111111100101001111111110010101;
????111011111111100011111111100101101111111110010111111111111001100011111111100110011111111110011010111111111001101111111111100111001111111110011101;
????11110101111111011111111111100111101111111110011111111111111010000011111111101000011111111110100010111111111010001111111111101001001111111110100101;
????111101111111111011011111111101001101111111110100111111111111010100011111111101010011111111110101010111111111010101111111111101011001111111110101101;
????1111101011111111011111111111101011101111111110101111111111111011000011111111101100011111111110110010111111111011001111111111101101001111111110110101;
????11111100011111111100000011111111101101101111111110110111111111111011100011111111101110011111111110111010111111111011101111111111101111001111111110111101;
????111111001111111111011111011111111101111111111111111000000111111111100000111111111110000101111111111000011111111111100010011111111110001011111111111000110;
????111111010111111111100011111111111110010001111111111001001111111111100101011111111110010111111111111001100111111111100110111111111110011101111111111001111;
????1111111001111111111101000011111111110100011111111111010010111111111101001111111111110101001111111111010101111111111101011011111111110101111111111111011000;
????1111111010111111111101100111111111110110101111111111011011111111111101110011111111110111011111111111011110111111111101111111111111111000001111111111100001;
????11111111000111111111110001011111111111000111111111111100100111111111110010111111111111001101111111111100111111111111110100011111111111010011111111111101010;
????1111111111101011111111111110110011111111111011011111111111101110111111111110111111111111111100001111111111110001111111111111001011111111111100111111111111110100;
????1111111111110101111111111111011011111111111101111111111111111000111111111111100111111111111110101111111111111011111111111111110011111111111111011111111111111110];

DC_coeff=[0261430621262545101022204640948190163823276665534131070];
s=0;j=0;
for?i=length（a）:-1:1
????s=s+a（i）*2^j;
????j=j+1;
end

zeroes=-1;
if?（t==0）
????for?i=1:1:length（DC_coeff）
????????if?（DC_coeff（i）==s）
????????????row_no=i-1;
????????????break;
????????else
????????????row_no=-1

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2016-05-20?07:24??JPEG-image-compression-master\
?????文件?????????593??2016-05-20?07:24??JPEG-image-compression-master\JPEG.m
?????文件?????????114??2016-05-20?07:24??JPEG-image-compression-master\README.md
?????文件????????3432??2016-05-20?07:24??JPEG-image-compression-master\check_coeff.m
?????文件?????????303??2016-05-20?07:24??JPEG-image-compression-master\dec_to_bin.m
?????文件????????1940??2016-05-20?07:24??JPEG-image-compression-master\decode.m
?????文件????????2406??2016-05-20?07:24??JPEG-image-compression-master\discrete_cosine.m
?????文件?????????958??2016-05-20?07:24??JPEG-image-compression-master\encode.m
?????文件?????????936??2016-05-20?07:24??JPEG-image-compression-master\insert_to_array.m
?????文件?????????665??2016-05-20?07:24??JPEG-image-compression-master\quantise.m
?????文件?????????457??2016-05-20?07:24??JPEG-image-compression-master\row_col.m
?????文件????????2011??2016-05-20?07:24??JPEG-image-compression-master\zig_zag.m

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