%?功能：數據庫抽樣可視化
%?版本：2017.4.11


%%?加載?cifar10?數據
close?all;clear;clc
load?（‘./datasets/old/cifar-10-batches-mat/data_batch_1.mat‘）;
data1=data;
labels1=labels;
clear?data?labels;
load?（‘./datasets/old/cifar-10-batches-mat/data_batch_2.mat‘）;
data2=data;
labels2=labels;
clear?data?labels;
load?（‘./datasets/old/cifar-10-batches-mat/data_batch_3.mat‘）;
data3=data;
labels3=labels;
clear?data?labels;
load?（‘./datasets/old/cifar-10-batches-mat/data_batch_4.mat‘）;
data4=data;
labels4=labels;
clear?data?labels;
load?（‘./datasets/old/cifar-10-batches-mat/data_batch_5.mat‘）;
data5=data;
labels5=labels;
clear?data?labels;
load?（‘./datasets/old/cifar-10-batches-mat/test_batch.mat‘）;
data6=data;
labels6=labels;
clear?data?labels;
%?圖片數據以及對應的labels
database?=?[data1?labels1;?data2?labels2;?data3?labels3;?data4?labels4;?data5?labels5;?data6?labels6];?
cifar10labels?=?[labels1;?labels2;?labels3;labels4;?labels5;?labels6];


%%?可視化方案1：按類別進行抽樣展示

[sortedLabels?index]?=?sort（cifar10labels）;???????????%?類別從小到達排序
dataInClass?=?database（index?:）;??????????????????????%?根據類別對數據排序
%?clear?database;
numImg?=?length（cifar10labels）;????????????????????????%?統計圖片總數目??
numPerClass?=?numImg/length（unique（cifar10labels））;????%?統計每類含有的圖片數目
numShow?=?100;?????????????????????????????????????????%?設定抽樣展示的圖片總數
numInRow?=?10;?????????????????????????????????????????%?設定每行展示的圖片總數??
%?32*32：圖像大小
%?3：圖像是RGB三通道
%?I2:?4維的矩陣，前三維是?32*32*3?的圖片，第四維度是圖像數目
I2?=?uint8（zeros（32?32?3?numShow））;?????????????????
for?i=1:numInRow
????randID?=?randi（numPerClass?numInRow?1）;??????????%?隨機生成?numInRow?個索引
????index?=?randID?+?（i-1）*numPerClass;????????????????%?每類被選取出來的圖片索引
????for?j=1:length（index）
????????image_r=dataInClass（index（j:）1:1024）;????????%?紅色通道：1024位
????????image_g=dataInClass（index（j:）1025:2048）;?????%?綠色通道：1024維
????????image_b=dataInClass（index（j:）2049:end-1）;????%?藍色通道：1024維
????????image_rer?=?reshape（image_r?32?32）;??????????%?紅色通道變形成?32*32?大小
????????image_reg?=?reshape（image_g?32?32）;??????????%?綠色通道變形成?32*32?大小
????????image_reb?=?reshape（image_b?32?32）;??????????%?藍色通道變形成?32*32?大小
????????%?R、G、B三通道融合，變成RGB彩色圖片
????????image（:?:?1）?=?image_rer‘;
????????image（:?:?2）?=?image_reg‘;
????????image（:?:?3）?=?image_reb‘;
????????%?將數據類型轉換成：無符號8位整型
????????image?=?uint8（image）;
????????%?將處理好的圖片存放在I2變量中
????????I2（:?:?:?j+（i-1）*numInRow）?=?image;
????end
end
%?畫圖
figure（‘Color‘?[1?1?1]）;?hold?on;
montage（I2（:?:?:?:））;
xlabel（‘sampling?by?labels‘）;
set（get（gca‘xlabel‘）‘FontName‘‘Times?New?Roman‘）;

%%?可視化方案2：隨機進行抽樣展示
numImg?=?length（cifar10labels）;????????????????????????%?統計圖片總數目??
numPerClass?=?numImg/length（unique（cifar10labels））;????%?統計每類含有的圖片數目
numShow?=?100;?????????????????????????????????????????%?設定抽樣展示的圖片總數
numInRow?=?10;?????????????????????????????????????????%?設定每行展示的圖片總數???
numInColum?=?numShow/numInRow;?????????????????????????%?設定每列展示的圖片總數
??????
%?32*32：圖像大小
%?3：圖像是RGB三通道
%?I2:?4維的矩陣，前三維是?32*32*3?的圖片，第四維度是圖像數目
I2?=?uint8（zeros（32?32

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

?????文件???????4145??2017-04-11?19:05??myprojects\demo1_data_visualization.m

?????文件???????1367??2017-04-11?16:44??myprojects\demo2_gist_visualization.m

?????文件???????2296??2017-04-11?19:05??myprojects\demo3_gist_extraction.m

?????文件???????2320??2017-04-11?19:25??myprojects\demo4_data_process.m

?????文件???????2861??2017-04-11?20:20??myprojects\demo5_img_generation.m

?????文件???????2932??2017-04-12?15:26??myprojects\demo6_LSH_retrieval.m

?????文件???????2613??2017-04-12?15:26??myprojects\demo7_ITQ_retrieval.m

?????文件????????638??2011-04-08?09:43??myprojects\methods\ITQ\compressITQ.m

?????文件???????2211??2013-12-20?16:23??myprojects\methods\ITQ\evaluate_ITQ.m

?????文件???????1059??2013-03-01?15:51??myprojects\methods\ITQ\ITQ.m

?????文件????????302??2013-02-28?20:58??myprojects\methods\ITQ\trainITQ.m

?????文件????????304??2010-11-02?10:25??myprojects\methods\LSH\compressLSH.m

?????文件???????2453??2013-08-16?15:02??myprojects\methods\LSH\evaluate_LSH.m

?????文件???????3276??2010-11-02?10:10??myprojects\methods\LSH\lshfunc.m

?????文件???????1038??2008-11-11?01:45??myprojects\methods\LSH\processRange.m

?????文件????????522??2009-11-21?02:21??myprojects\tools\gist\imresizecrop.m

?????文件???????8240??2011-12-12?06:20??myprojects\tools\gist\LMgist.m

?????文件???????1954??2011-12-12?05:53??myprojects\tools\gist\showGist.m

?????文件??????31372??2017-04-11?16:27??myprojects\tools\gist\test1.jpg

?????文件?????245020??2017-04-11?16:28??myprojects\tools\gist\test2.jpg

?????文件????1028531??2017-04-11?16:30??myprojects\tools\gist\test3.jpg

?????文件????????293??2010-09-28?15:46??myprojects\tools\utils\compactbit.m

?????文件????????474??2015-06-11?06:35??myprojects\tools\utils\distMat.m

?????文件???????1450??2013-08-09?21:05??myprojects\tools\utils\eva_lookup.m

?????文件????????944??2010-10-25?17:37??myprojects\tools\utils\eva_lookup1.m

?????文件???????1603??2014-02-27?15:52??myprojects\tools\utils\eva_ranking.m

?????文件????????773??2013-06-08?14:48??myprojects\tools\utils\eva_ranking1.m

?????文件????????224??2010-10-25?15:21??myprojects\tools\utils\extractbit.m

?????文件???????1575??2013-08-10?01:02??myprojects\tools\utils\gendata.m

?????文件???????1510??2010-10-20?15:59??myprojects\tools\utils\hammingDist.m

............此處省略20個文件信息