how can i save feature vectors in a mat file?

i have 50 rows and infinite(unknown lets say 30,000) columns. how can i use for loop using 50 iterations as there are 50 different images whom feature vectors i am trying to store.. please help me

Answer 1

[Jan]

FileList = dir('*,jpg');
Result   = nan(length(FileList), 30000);
for iFile = 1:numel(FileList)
  FileName = FileList{iFile}.name;
  ... obtain features
  Result(iFile, :) = <features>
end

[maida]

Error using cast Conversion to single from struct is not possible.

FileList = dir('E:\RESEARCH WORK\Features_vect_lungs\*.png');

Result = nan(length(FileList), 30000);

for iFile = 1:numel(FileList)

FileName = FileList(iFile);

   isRotInv=false;

    isChanWiseRot=false;

    filtR= generateRadialFilterLBP(8, 1);

      fv= efficientLBP(FileName, 'filtR', filtR, 'isRotInv',

false, 'isChanWiseRot', false);

Result(iFile, :) = fv;

end

[Jan]

Do you see, that your code is gard to read? Omit the empty lines and use the "{} Code" button to see, how code is formatted properly. Please.

It is necessary to reveal, which line causes the error. We cannot guess this, while this detail is shown in your command window.

If the failing line is "Result(iFile, :) = fv;", you have to find out, how you want to store the "30'000" feature. I cannot run your code and cannot guess its intention.