CBIR

This code implements the concept of content based image retrieval concept using the technique described in The Application of DWT and SVD in Image Retrieval.

function ret=cbir（H）
[m n]=size（H）;
L=8;

aw=n/4;ah=3*m/8;

for i=1:2
    for j=1:3
        A（::ij）=H（m/8+（i-1）*ah+1:m/8+i*ahn/8+（j-1）*aw+1:n/8+j*aw）;
    end
end
A7=H（1:m/81:7*n/8）;
A8=H（1:7*m/87*n/8+1:end）;
A9=H（7*m/8+1:endn/8+1:end）;
A10=H（m/8+1:end1:n/8）;
k=1;
for i=1:2
    for j=1:3
    MA（:::k）=wccoe（A（::ij）L）;
    k=k+1;
    end
end
MA7=wccoe（A7L）;
MA8=wccoe（A8L）;
MA9=wccoe（A9L）;
MA10=wccoe（A10L）;


for k=1:6
for i=1:4
    cA（:ik）=svd（MA（::ik））;
end
end
for i=1:4
    cA7（:i）=svd（MA7（::i））;
end
for i=1:4
    cA8（:i）=svd（MA8（::i））;
end
for i=1:4
    cA9（:i）=svd（MA9（::i））;
end
for i=1:4
    cA10（:i）=svd（MA10（::i））;
end


ret=cA;
end

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件        728  2010-05-23 00:02  CBIR\cbir1.m

     文件        443  2010-05-23 09:12  CBIR\cbir2.m

     文件       1290  2010-05-23 16:47  CBIR\main.m

     文件     843616  2011-02-09 21:31  CBIR\paper_dwt.pdf

     文件        644  2010-05-22 23:38  CBIR\wccoe.m

     目录          0  2011-02-09 21:43  CBIR

----------- ---------  ---------- -----  ----

               846721                    6