%向下采樣
function?r=DownSample（im）
????[mnz]=size（im）;
????r=zeros（m/2n/2z）;
????for?i=1:m/2
????????for?j=1:n/2
????????????r（ij:）=im（2*i2*j:）;
????????end
????end

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2012-11-08?20:04??圖像金字塔\
?????文件????????3796??2012-11-03?15:05??圖像金字塔\128.jpg
?????文件?????????424??2012-11-03?15:06??圖像金字塔\16.jpg
?????文件?????????643??2012-11-03?15:06??圖像金字塔\32.jpg
?????文件????????1376??2012-11-03?15:06??圖像金字塔\64.jpg
?????文件?????????358??2012-11-03?15:06??圖像金字塔\8.jpg
?????文件???????26452??2012-04-18?15:30??圖像金字塔\a.jpg
?????文件?????????181??2012-11-03?15:03??圖像金字塔\DownSample.m
?????文件?????????971??2012-11-03?15:03??圖像金字塔\Guassion.m
?????文件?????????470??2012-11-03?15:04??圖像金字塔\GuassionMatrix.m
?????文件?????????652??2012-11-03?15:01??圖像金字塔\memo.m
?????文件???????16896??2012-11-03?15:44??圖像金字塔\opencv代碼.doc