Read dataset file name only

Question

Eiman Hakimy 2022-1-9

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1625290-read-dataset-file-name-only

评论： Walter Roberson 2022-1-9

采纳的回答： Walter Roberson

在 MATLAB Online 中打开

Hello, i want to ask how i want my code can read dataset folder name only like the folder name like 0,1,2,3,4,5

the dataset i choose is from = https://www.kaggle.com/ayuraj/asl-dataset

Right now i can only read image name only. So, i want the system can read and call dataset folder name.

Here my code

SelectFile.m

%N = 'C:\Users\USER\Documents\MATLAB\Project\asl_dataset\asl_dataset';
function d = SelectFile(A,N)
M = 6; % number of class [0 to 5 ]
cnt(1:M)=0; % counter for each class
% get all filenames in the data directory
  D = dir(A);
% extract only N file
  d =D(1:N);
% see the statistic of each class pattern  
 for i=1:N
  fn = D(i).asl_dataset; %file name
  x = fn(38);   % extract target from filename
  
  %find the distribution of file being extracted per class
  if (x == '0')
      cnt(1)=cnt(1)+1;
  elseif (x=='1')
      cnt(2)=cnt(2)+1;
  elseif (x=='2')
      cnt(3)=cnt(3)+1;
  elseif (x=='3')
      cnt(4)=cnt(4)+1;
  elseif (x=='4')
      cnt(5)=cnt(5)+1;
  elseif (x=='5')
      cnt(6)=cnt(6)+1;
  end    
 end
 cnt
 bar([0 1 2 3 4 5],cnt);
 title('statistic number of pattern per class');
 text(0:5,cnt,num2str(cnt'),'vert','bottom','horiz','center'); 
end

sample.m

D = 'C:\Users\USER\Documents\MATLAB\Project\asl_dataset\asl_dataset';
d1 = SelectFile(D,360);   
[Dat,Trgt] = FExtraction(d1);
net = NNTrain(Dat,Trgt);
%Test NN using Test Patterns
%D = 'C:\RESEARCH\pattern\fingers\test\*.png';
D = 'C:\Users\USER\Documents\MATLAB\Project\asl_dataset\asl_dataset';
d2 = SelectFile(D,60);   
[Data,Target] = FExtraction(d2);
O = NNTest(net,Data,Target);
disp('recognition rate is : '); 
disp(O);

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Walter Roberson 2022-1-9

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1625290-read-dataset-file-name-only#answer_871125

在 MATLAB Online 中打开

D = 'C:\Users\USER\Documents\MATLAB\Project\asl_dataset\asl_dataset';
dinfo = dir(D);
dinfo(ismember({dinfo.name}, {'.', '..'})) = [];  %remove . and ..
dinfo(~[dinfo.isdir]) = [];   %remove any files leaving only directories
foldernames = {dinfo.name};