本篇博客介绍了一个使用Matlab编写的程序，该程序可以遍历指定目录下的所有子目录及文件，并将每个文件路径及其对应的标签写入到一个txt文件中。此方法适用于批量处理图像数据集，例如在智能城市项目中进行训练数据集的整理。
clc
clear
Source_Dir='C:\Users\ggj\Desktop\补充材料\20150820\train\lz0816\';
fid=fopen('smart_city_train.txt','w');
DIRNAME=dir(Source_Dir);
Lable=0;
for i=3:length(DIRNAME)
Image_Name=DIRNAME(i).name;
Sub_Name=fullfile(Source_Dir,Image_Name);
Suba_name_Length=dir(Sub_Name);
for j=3:length(Suba_name_Length)
Local_Name=fullfile(Image_Name,Suba_name_Length(j).name);
fprintf(fid,'%s ',Local_Name);
fprintf(fid,'%d',Lable);
fprintf(fid,'\n');
end
Lable=Lable+1;
end
fclose(fid);
clear
Source_Dir='C:\Users\ggj\Desktop\补充材料\20150820\train\lz0816\';
fid=fopen('smart_city_train.txt','w');
DIRNAME=dir(Source_Dir);
Lable=0;
for i=3:length(DIRNAME)
Image_Name=DIRNAME(i).name;
Sub_Name=fullfile(Source_Dir,Image_Name);
Suba_name_Length=dir(Sub_Name);
for j=3:length(Suba_name_Length)
Local_Name=fullfile(Image_Name,Suba_name_Length(j).name);
fprintf(fid,'%s ',Local_Name);
fprintf(fid,'%d',Lable);
fprintf(fid,'\n');
end
Lable=Lable+1;
end
fclose(fid);
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