clear
img?=?imread（‘ps.jpg‘）;
img_g?=?rgb2gray（img）;
%?img_g?=?imread（‘image24_2.bmp‘）;
%?img_g?=?imnoise（img_g‘gaussian‘00.0001）;
side_min?=?min（size（img_g））;
lvl?=?0;
while?side_min?>=?768
????side_min?=?side_min/2;
????lvl?=?lvl+1;
end
coor_rec?=?cell（1lvl+1）;
if?lvl?~=?0
????wname?=?‘haar‘;
????[cs]?=?wavedec2（double（img_g）lvlwname）;
????LL_lvl_coef?=?appcoef2（cswnamelvl）;
????img_LL_lvl?=?uint8（wcodemat（LL_lvl_coef256））;
else
????img_LL_lvl?=?img_g;
end
%?imshow（img_LL_lvl）;
%?imwrite（img_LL_lvl‘image.bmp‘）;
b?=?8;
[MN]?=?size（img_LL_lvl）;
A?=?im2col（img_LL_lvl[b?b]‘sliding‘）‘;
B_tmp?=?[];
for?j?=?1:N-b+1
????B_tmp1?=?[1:M-b+1]‘;
????B_tmp2?=?j*ones（M-b+11）;
????B_tmp?=?[B_tmp;[B_tmp1B_tmp2]];
end
B?=?[uint16（A）B_tmp];
[A_sortA_index]

?屬性????????????大小?????日期????時間???名稱
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?????文件???????3540??2011-09-09?18:24??Khan2.m

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?????????????????3540????????????????????1