%%?LVQ神經網絡的預測——人臉識別
%
%?
%?			該案例作者申明：		1：本人長期駐扎在此板塊里，對該案例提問，做到有問必答。本套書籍官方網站為：video.ourmatlab.com		2：點此從當當預定本書：《Matlab神經網絡30個案例分析》。	3：此案例有配套的教學視頻，視頻下載方式video.ourmatlab.com/vbuy.html。?
								4：此案例為原創案例，轉載請注明出處（《Matlab神經網絡30個案例分析》）。							5：若此案例碰巧與您的研究有關聯，我們歡迎您提意見，要求等，我們考慮后可以加在案例里。			
%?

%%?清除環境變量
clear?all
clc

%%?人臉特征向量提取?
%?人數
M?=?20;
%?人臉朝向類別數
N?=?5;?
%?特征向量提取
pixel_value?=?feature_extraction（MN）;

%%?訓練集/測試集產生
%?產生圖像序號的隨機序列
rand_label?=?randperm（M*N）;??
%?人臉朝向標號
direction_label?=?repmat（1:N1M）;
%?訓練集
train_label?=?rand_label（1:80）;
P_train?=?pixel_value（train_label:）‘;
Tc_train?=?direction_label（train_label）;
T_train?=?ind2vec（Tc_train）;
%?測試集
test_label?=?rand_label（81:end）;
P_test?=?pixel_value（test_label:）‘;
Tc_test?=?direction_label（test_label）;

%%?K-fold交叉驗證確定最佳神經元個數
k_fold?=?10;
Indices?=?crossvalind（‘Kfold‘size（P_train2）k_fold）;
error_min?=?10e10;
best_number?=?1;
best_input?=?[];
best_output?=?[];
best_train_set_index?=?[];
best_validation_set_index?=?[];
h?=?waitbar（0‘正在尋找最佳神經元個數.....‘）;
for?i?=?1:k_fold
????%?驗證集標號
????validation_set_index?=?（Indices?==?i）;
????%?訓練集標號
????train_set_index?=?~validation_set_index;
????%?驗證集
????validation_set_input?=?P_train（:validation_set_index）;
????validation_set_output?=?T_train（:validation_set_index）;
????%?訓練集
????train_set_input?=?P_train（:train_set_index）;
????train_set_output?=?T_train（:train_set_index）;
????for?number?=?10:100
????????for?j?=?1:5
????????????rate{j}?=?length（find（Tc_train（:train_set_index）?==?j））/length（find（train_set_index?==?1））;
????????end
????????net?=?newlvq（minmax（train_set_input）numbercell2mat（rate））;
????????%?設置網絡參數
????????net.trainParam.epochs?=?100;
????????net.trainParam.show?=?10;
????????net.trainParam.lr?=?0.1;
????????net.trainParam.goal?=?0.001;
????????%?訓練網絡
????????net?=?train（nettrain_set_inputtrain_set_output）;
????????waitbar（（（i-1）*21?+?number）/219h）;
????????
????????%%?仿真測試
????????T_sim?=?sim（netvalidation_set_input）;
????????Tc_sim?=?vec2ind（T_sim）;
????????error?=?length（find（Tc_sim?~=?Tc

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-01-14?20:24??Face?Recognition\
?????目錄???????????0??2018-01-14?20:24??Face?Recognition\Images\
?????文件??????345654??2017-12-12?10:26??Face?Recognition\Images\10_1.bmp
?????文件??????345654??2017-12-12?10:27??Face?Recognition\Images\10_2.bmp
?????文件??????345654??2017-12-12?10:27??Face?Recognition\Images\10_3.bmp
?????文件??????345654??2017-12-12?10:27??Face?Recognition\Images\10_4.bmp
?????文件??????345654??2017-12-12?10:27??Face?Recognition\Images\10_5.bmp
?????文件??????345654??2017-12-12?10:28??Face?Recognition\Images\11_1.bmp
?????文件??????345654??2017-12-12?10:28??Face?Recognition\Images\11_2.bmp
?????文件??????345654??2017-12-12?10:28??Face?Recognition\Images\11_3.bmp
?????文件??????345654??2017-12-12?10:28??Face?Recognition\Images\11_4.bmp
?????文件??????345654??2017-12-12?10:29??Face?Recognition\Images\11_5.bmp
?????文件??????345654??2017-12-12?10:29??Face?Recognition\Images\12_1.bmp
?????文件??????345654??2017-12-12?10:29??Face?Recognition\Images\12_2.bmp
?????文件??????345654??2017-12-12?10:29??Face?Recognition\Images\12_3.bmp
?????文件??????345654??2017-12-12?10:30??Face?Recognition\Images\12_4.bmp
?????文件??????345654??2017-12-12?10:30??Face?Recognition\Images\12_5.bmp
?????文件??????345654??2017-12-12?10:30??Face?Recognition\Images\13_1.bmp
?????文件??????345654??2017-12-12?10:31??Face?Recognition\Images\13_2.bmp
?????文件??????345654??2017-12-12?10:31??Face?Recognition\Images\13_3.bmp
?????文件??????345654??2017-12-12?10:31??Face?Recognition\Images\13_4.bmp
?????文件??????345654??2017-12-12?10:31??Face?Recognition\Images\13_5.bmp
?????文件??????345654??2017-12-12?10:32??Face?Recognition\Images\14_1.bmp
?????文件??????345654??2017-12-12?10:32??Face?Recognition\Images\14_2.bmp
?????文件??????345654??2017-12-12?10:32??Face?Recognition\Images\14_3.bmp
?????文件??????345654??2017-12-12?10:32??Face?Recognition\Images\14_4.bmp
?????文件??????345654??2017-12-12?10:33??Face?Recognition\Images\14_5.bmp
?????文件??????345654??2017-12-12?10:33??Face?Recognition\Images\15_1.bmp
?????文件??????345654??2017-12-12?10:33??Face?Recognition\Images\15_2.bmp
?????文件??????345654??2017-12-12?10:33??Face?Recognition\Images\15_3.bmp
?????文件??????345654??2017-12-12?10:34??Face?Recognition\Images\15_4.bmp
............此處省略76個文件信息