資源簡介
稀疏圖像與信號處理的一個數值實驗,利用非抽取小波進行圖像去噪,對比正交小波和冗余小波的去噪效果。里面是完整的代碼,用MATLAB可以運行。

代碼片段和文件信息
function?y?=?aconv(fx)?
%?aconv?--?Convolution?Tool?for?Two-Scale?Transform?
%??Usage?
%????y?=?aconv(fx)?
%??Inputs?
%????f????filter?
%????x????1-d?signal?
%??Outputs?
%????y????filtered?result?
%?
%??Description?
%????Filtering?by?periodic?convolution?of?x?with?the?
%????time-reverse?of?f.?
%?
%??See?Also?
%????iconv?UpDyadHi?UpDyadLo?DownDyadHi?DownDyadLo?
%?
?
n?=?length(x);?
p?=?length(f);?
if?p? ???xpadded?=?[x?x(1:p)];?
else?
???z?=?zeros(1p);?
???for?i=1:p?
???imod?=?1?+?rem(i-1n);?
???z(i)?=?x(imod);?
???end?
???xpadded?=?[x?z];?
end?
fflip?=?reverse(f);?
ypadded?=?filter(fflip1xpadded);?
y?=?ypadded(p:(n+p-1));?
?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
????.CA....???????697??2018-12-05?12:36??My?Project\aconv.m
????.CA....???????352??2018-12-06?11:25??My?Project\CircularShift.m
????.CA....???????405??2018-12-05?12:38??My?Project\DownDyadHi.m
????.CA....???????384??2018-12-05?12:35??My?Project\DownDyadLo.m
????.CA....????263222??2018-12-05?10:53??My?Project\einstein.bmp
????.CA....???????884??2018-12-05?12:34??My?Project\FWT2_PO.m
????.CA....??????2385??2018-12-05?12:33??My?Project\FWT2_TI.m
????.CA....???????240??2018-12-06?12:30??My?Project\HardThresh.m
????.CA....???????651??2018-12-05?12:40??My?Project\iconv.m
????.CA....???????989??2018-12-06?12:33??My?Project\IWT2_PO.m
????.CA....??????1640??2018-12-06?12:32??My?Project\IWT2_TI.m
????.CA....???????257??2018-12-05?12:39??My?Project\lshift.m
????.CA....??????8720??2018-12-05?12:23??My?Project\MakeONFilter.m
????.CA....???????397??2018-12-05?12:38??My?Project\MirrorFilt.m
????.CA....???????402??2018-12-05?12:33??My?Project\packet.m
????.CA....???????860??2018-12-05?22:43??My?Project\ParseInputs.m
????.CA....???????629??2018-12-05?12:19??My?Project\quadlength.m
????.CA....??????1704??2018-12-06?12:29??My?Project\RedundantWavelet.m
????.CA....???????271??2018-12-05?12:37??My?Project\reverse.m
????.CA....???????280??2018-12-05?12:59??My?Project\rshift.m
????.CA....???????382??2018-12-06?13:57??My?Project\UpDyadHi.m
????.CA....???????342??2018-12-06?13:52??My?Project\UpDyadLo.m
????.C.D...?????????0??2018-12-15?15:21??My?Project
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???????????????286093????????????????????23
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