function?feat?=?computefeature（structdis）

%?Input??-?MSCn?coefficients
%?Output?-?Compute?the?18?dimensional?feature?vector?

feat??????????=?[];



[alpha?betal?betar]??????=?estimateaggdparam（structdis（:））;

feat?????????????????????=?[feat;alpha;（betal+betar）/2];

shifts???????????????????=?[?0?1;1?0?;1?1;1?-1];

for?itr_shift?=1:4
?
shifted_structdis????????=?circshift（structdisshifts（itr_shift:））;
pair?????????????????????=?structdis（:）.*shifted_structdis（:）;
[alpha?betal?betar]??????=?estimateaggdparam（pair）;
meanparam????????????????=?（betar-betal）*（gamma（2/alpha）/gamma（1/alpha））;???????????????????????
feat?????????????????????=?[feat;alpha;meanparam;betal;betar];

end

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件?????????713??2012-08-24?18:21??niqe_release\computefeature.m
?????文件??????????56??2012-02-25?15:07??niqe_release\computemean.m
?????文件????????3224??2012-08-24?17:55??niqe_release\computequality.m
?????文件?????????678??2012-08-20?10:44??niqe_release\estimateaggdparam.m
?????文件????????4027??2012-08-24?18:16??niqe_release\estimatemodelparam.m
?????文件?????????750??2012-08-21?15:36??niqe_release\example.m
?????文件?????1179702??2011-04-04?14:48??niqe_release\image1.bmp
?????文件?????1179702??2011-04-04?14:49??niqe_release\image2.bmp
?????文件?????1179702??2011-04-04?14:49??niqe_release\image3.bmp
?????文件?????2098230??2011-09-24?16:49??niqe_release\image4.bmp
?????文件????????8347??2012-08-24?17:52??niqe_release\modelparameters.mat
?????文件????????5385??2012-08-24?18:19??niqe_release\readme.txt
?????目錄???????????0??2012-08-24?20:13??niqe_release\