function?imglbp?=?getCircularLBPFeature（img?radius?neighbors）
????imgSize?=?size（img）;
????if?numel（imgSize）?>?2
????????imgG?=?rgb2gray（img）;
????else
????????imgG?=?img;
????end
????[rows?cols]?=?size（imgG）;
????rows=int16（rows）;
????cols=int16（cols）;
????imglbp?=?uint8（zeros（rows-2*radius?cols-2*radius））;

????for?k=0:neighbors-1
%???????計算采樣點對于中心點坐標的偏移量rx，ry????????
????????rx?=?radius?*?cos（2.0?*?pi?*?k?/?neighbors）;
????????ry?=?-radius?*?sin（2.0?*?pi?*?k?/?neighbors）;
%???????對采樣點偏移量分別進行上下取整????????
????????x1?=?floor（rx）;
????????x2?=?ceil（rx）;
????????y1?=?floor（ry）;
????????y2?=?ceil（ry）;
%???????將坐標偏移量映射到0-1之間????????
????????tx?=?rx?-?x1;
????????ty?=?ry?-?y1;
%???????根據(jù)0-1之間的x，y的權(quán)重計算公式計算權(quán)重，權(quán)重與坐標具體位置無關(guān)，與坐標間的差值有關(guān)
????????w1?=?（1-tx）?*?（1-ty）;
????????w2?=?tx?*?（1-ty）;
????????w3?=?（1-tx）?*?ty;
????????w4?=?tx?*?ty;

????????for?i=radius+1:rows-radius
????????????for?j=radius+1:cols-radius
????????????????center?=?imgG（i?j）;
%???????????????根據(jù)雙線性插值公式計算第k個采樣點的灰度值????????????????
????????????????neighbor?=?imgG（i+x1?j+y1）*w1?+?imgG（i+x1?j+y2）*w2?+?imgG（i+x2?j+y1）*w3?+?imgG（i+x2?j+y2）*w4;
%???????????????LBP特征圖像的每個鄰居的LBP值累加，累加通過與操作完成，對應(yīng)的LBP值通過移位取得
????????????????if?neighbor?>?center
????????????????????flag?=?1;
????????????????else
????????????????????flag?=?0;
????????????????end
????????????????imglbp（i-radius?j-radius）?=?bitor（imglbp（i-radius?j-radius）?bitshift（flag?neighbors-k-1））;
????????????end
????????end
????end
end

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????1653??2019-03-28?19:50??LBP\LBP\getCircularLBPFeature.m

?????文件???????2171??2019-03-28?19:11??LBP\LBP\getRotationInvariantLBPFeature.m

?????文件???????2330??2019-03-28?19:21??LBP\LBP\getUniformPatternLBPFeature.m

?????文件????????650??2019-03-28?19:53??LBP\LBP\LBP.m

?????文件???????1487??2019-03-28?17:00??LBP\LBP\OriginLBP.m

?????目錄??????????0??2019-04-01?10:20??LBP\LBP

?????目錄??????????0??2019-04-01?10:19??LBP

-----------?---------??----------?-----??----

?????????????????8291????????????????????7