Someone Please Help me to save Features into .mat file along with labels

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saeeda saher
saeeda saher 2018-6-8
评论： Walter Roberson 2018-6-8
Here is my code, I am beginner and dont kow how to edit it. I want to save HOG features into .mat file with labels. Please help.
training=imageSet('Training/Fear','recursive'); % folder name of the database
K=1;
%featureMatrix = [];
for i=1:size(training,2 )
for j=1:training(i).Count
Face=read(training(i),j);
Face=imresize(Face, [48 48]);
%Face=rgb2gray(Face); %If color images
% Face = pca(double(Face));
%newFace = LBP(Face);
%imshow(uint8(Face))
HOG_Features= extractHOGFeatures2(Face);
%featureMatrix = [featureMatrix; HOG_Features];
%disp(featureMatrix )
trainingFeatures(K,:)=single(HOG_Features);
% plot(visualization);
traininglabel{K}=training(i).Description;
K=K+1;
end
persons{i}=training(i).Description;
end
traininglabel=traininglabel';
csvwrite('TrainFear4-2.csv', trainingFeatures)

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回答（1 个）

Walter Roberson
Walter Roberson 2018-6-8
To save in a .mat file:
save('TrainFear4-2.mat', 'traininglabel', 'trainingFeatures');
If you wanted to save into .csv file like in the existing code:
data_to_write = [traininglabel(:), num2cell(trainingFeatures)];
csvwrite('TrainFear4-2.csv', data_to_write);
Note that this would only work for MS Windows with Excel installed; for other systems different commands would be needed to write the file.
  2 个评论
saeeda saher
saeeda saher 2018-6-8
I tried your code but its not saving the labels on right side of mat file after the features in one .mat file.
Walter Roberson
Walter Roberson 2018-6-8
.mat files do not have a left or right side.
Note: it is not possible to create a numeric array that has text labels as part of it. You can have cell arrays that have a mix of numeric and text, and you can have table() objects that have a mix of columns of numeric and columns of text.

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