function?[im_h]?=?backprojection（im_h?im_l?maxIter）

[row_l?col_l]?=?size（im_l）;
[row_h?col_h]?=?size（im_h）;

p?=?fspecial（‘gaussian‘?5?1）;
p?=?p.^2;
p?=?p./sum（p（:））;

im_l?=?double（im_l）;
im_h?=?double（im_h）;

for?ii?=?1:maxIter
????im_l_s?=?imresize（im_h?[row_l?col_l]?‘bicubic‘）;
????im_diff?=?im_l?-?im_l_s;
????
????im_diff?=?imresize（im_diff?[row_h?col_h]?‘bicubic‘）;
????im_h?=?im_h?+?conv2（im_diff?p?‘same‘）;
end
????

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2013-04-02?08:59??ScSR\
?????目錄???????????0??2011-03-07?13:45??ScSR\Data\
?????目錄???????????0??2013-04-02?08:59??ScSR\Data\Testing\
?????文件??????196662??2011-01-10?21:54??ScSR\Data\Testing\gnd.bmp
?????文件???????49206??2011-01-18?13:51??ScSR\Data\Testing\input.bmp
?????文件??????196662??2011-01-28?23:07??ScSR\Data\Testing\result.bmp
?????目錄???????????0??2013-04-02?08:59??ScSR\Data\Training\
?????文件??????104246??2007-10-14?17:36??ScSR\Data\Training\t1.bmp
?????文件??????118614??2007-10-14?20:44??ScSR\Data\Training\t11.bmp
?????文件???????40990??2007-10-14?20:45??ScSR\Data\Training\t12.bmp
?????文件??????101010??2007-10-14?20:45??ScSR\Data\Training\t13.bmp
?????文件???????76990??2007-10-14?20:46??ScSR\Data\Training\t14.bmp
?????文件???????83894??2007-10-14?20:47??ScSR\Data\Training\t16.bmp
?????文件???????69786??2007-10-14?20:47??ScSR\Data\Training\t17.bmp
?????文件???????55782??2007-10-14?20:48??ScSR\Data\Training\t18.bmp
?????文件???????96174??2007-10-14?20:48??ScSR\Data\Training\t19.bmp
?????文件???????92418??2007-10-14?17:37??ScSR\Data\Training\t2.bmp
?????文件???????18462??2007-10-14?20:48??ScSR\Data\Training\t20.bmp
?????文件???????41346??2007-10-14?20:49??ScSR\Data\Training\t21.bmp
?????文件???????59718??2007-10-14?20:49??ScSR\Data\Training\t22.bmp
?????文件???????46902??2007-10-14?20:49??ScSR\Data\Training\t23.bmp
?????文件???????37290??2007-10-14?20:50??ScSR\Data\Training\t24.bmp
?????文件??????125190??2007-10-14?20:50??ScSR\Data\Training\t25.bmp
?????文件???????58742??2007-10-14?20:51??ScSR\Data\Training\t26.bmp
?????文件??????126030??2007-10-14?20:51??ScSR\Data\Training\t27.bmp
?????文件???????92550??2007-10-14?20:52??ScSR\Data\Training\t28.bmp
?????文件???????89334??2007-10-14?17:38??ScSR\Data\Training\t3.bmp
?????文件???????61662??2007-10-14?20:52??ScSR\Data\Training\t30.bmp
?????文件??????101670??2007-11-09?22:17??ScSR\Data\Training\t31.bmp
?????文件???????86646??2007-11-09?22:17??ScSR\Data\Training\t32.bmp
?????文件???????66362??2007-11-09?22:19??ScSR\Data\Training\t34.bmp
............此處省略141個文件信息