How to remove this error in this code? This code is for face recognition using principal component analysis

function T = CreateDatabase(TrainDatabasePath)

% Align a set of face images (the training set T1, T2, ... , TM )
%
% Description: This function reshapes all 2D images of the training database
% into 1D column vectors. Then, it puts these 1D column vectors in a row to 
% construct 2D matrix 'T'.
% Argument:     TrainDatabasePath   - Path of the training database
% Returns:      T                   - A 2D matrix, containing all 1D image vectors.
%                                    Suppose all P images in the training database 
%                                   have the same size of MxN. So the length of 1D 
%                                  column vectors is MN and 'T' will be a MNxP 2D 
% See also: STRCMP, STRCAT, RESHAPE
% Original version by Amir Hossein Omidvarnia, October 2007
%  File management

TrainFiles = dir(TrainDatabasePath);
Train_Number = 0;
for i = 1:size(TrainFiles,1)
 if not(strcmp(TrainFiles(i).name,'.')|strcmp(TrainFiles(i).name,'..')|strcmp(TrainFiles(i).name,'Thumbs.db'))
 Train_Number = Train_Number + 1; % Number of all images in the training database
 end
end
if true
end

% Construction of 2D matrix from 1D image vectors

T = [];
for i = 1 : Train_Number

      % I have chosen the name of each image in databases as a corresponding
      % number. However, it is not mandatory!

       str = int2str(i);
      str = strcat('\',str,'.jpg');
      str = strcat(TrainDatabasePath,str);

      img = imread(str);
      img = rgb2gray(img);

      [irow icol] = size(img);

      temp = reshape(img',irow*icol,1);   % Reshaping 2D images into 1D image vectors
      T = [T temp]; % 'T' grows after each turn                    
  end

Error in CreateDatabase (line 2)
functions T = CreateDatabase(TrainDatabasePath)

>> CreateDatabase
Error using CreateDatabase (line 23)
Not enough input arguments.

Please help me in this code..Thanks in advance

[surya surya]

CreateDatabase('C:\Prgram Files\MATLAB\R2009b\work\face recognition');

use in this format instead of that

[Rakesh Kashyap]

How to give the path of image as an argument to createdatabase function?

Answer 1

[Image Analyst]

Well, eveidently it wants another input argument. Why don't you just simply supply all the input arguments that it requires? You can't do this:

>> CreateDatabase
Error using CreateDatabase (line 23)
Not enough input arguments.

Look at the definition. CreateDatabase() requires a string that is a folder as an input. You did not supply that -- you just called it without supplying ANY arguments. Why didn't you supply the folder that it wants???

[Sindhuja Chaduvula]

function T = CreateDatabase(TrainDatabasePath)

% Align a set of face images (the training set T1, T2, ... , TM )

%

% Description: This function reshapes all 2D images of the training database

% into 1D column vectors. Then, it puts these 1D column vectors in a row to

% construct 2D matrix 'T'.

%

%

% Argument: TrainDatabasePath - Path of the training database

%

% Returns: T - A 2D matrix, containing all 1D image vectors.

% Suppose all P images in the training database

% have the same size of MxN. So the length of 1D

% column vectors is MN and 'T' will be a MNxP 2D matrix.

%

% See also: STRCMP, STRCAT, RESHAPE

% Original version by Amir Hossein Omidvarnia, October 2007

% Email: [e-mail]

%%%%%%%%%%%%%%%%%%%%%%%% File management

TrainFiles = dir('\Users\prasanth\Downloads\MATLAB code 3\database2\');

Train_Number = 0;

for i = 1:size(TrainFiles,1)

if not(strcmp(TrainFiles(i).name,'.')|strcmp(TrainFiles(i).name,'..')|strcmp(TrainFiles(i).name,'Thumbs.db'))

Train_Number = Train_Number + 1; % Number of all images in the training database

end

end

%%%%%%%%%%%%%%%%%%%%%%%% Construction of 2D matrix from 1D image vectors

T = [];

%disp(Train_Number);

for i = 1 : Train_Number-1

% I have chosen the name of each image in databases as a corresponding

% number. However, it is not mandatory!

str = int2str(i);

str = strcat(char(str),'.jpg');

str = strcat(TrainDatabasePath,str);

% display(str);

img = imread(str);

img = im2gray(img);

[irow, icol] = size(img);

temp = reshape(img',irow*icol,1); % Reshaping 2D images into 1D image vectors

T = [T temp]; % 'T' grows after each turn

end

end

>> CreateDatabase

ans =

[]

[Sindhuja Chaduvula]

is this code correct for mac