%???@Function:?Dictionary?learning?&?KSVD?
%???this?function?is?a?simple?implementation?of?the?KSVD?method
%???@CreateTime:?2018-07-06??
%???@Author:?Longfei?Zhou?
%???@https://github.com/longfeizhou2016/Dictionary-learning??
%??

function?[?DW?]?=?ksvd（?Y?D?W?）
%KSVD?此處顯示有關此函數的摘要
for?i?=?1:size（D2）
????[DW]?=?dict_update（YDWi）;
end

end
function?[D_tempW_temp]?=?dict_update（YDWk）
???indexs?=?find（W（k:）~=0）;?%找出編碼中，第k行中不為0的列索引
???D_temp?=?D;
???W_temp?=?W;
???if?size（indexs2）>0
???????D_temp（:k）?=?0;??%把即將更新的字典的第k列置為0
???????E_k?=?Y（:indexs）?-?D_temp*W_temp（:indexs）;?
???????[usv]?=?svd（E_k）;
???????D_temp（:k）?=?u（:1）;
???????W_temp（kindexs）?=?v（:1）*s（11）;
???end
end

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-07-06?10:47??Dictionary-learning-master\
?????文件???????76260??2018-07-06?10:47??Dictionary-learning-master\DictionaryLearning.pptx
?????文件?????????884??2018-07-06?10:47??Dictionary-learning-master\MOD.m
?????文件?????????489??2018-07-06?10:47??Dictionary-learning-master\Main.m
?????文件????????1248??2018-07-06?10:47??Dictionary-learning-master\OMP.m
?????文件?????????356??2018-07-06?10:47??Dictionary-learning-master\README.md
?????文件?????????740??2018-07-06?10:47??Dictionary-learning-master\ksvd.m