saving images as a database

Question

Tony 2014-1-12

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/112187-saving-images-as-a-database

回答： Image Analyst 2014-1-14

I am trying to put a folder of jpg images in a database .mat i tried this from similar stuff that i googled, i was successful doing it to one image using

save('test.mat','f')

here is the failed code,

if true
  srcFiles = dir('F:\matlab\face\data\*.jpg') % the folder images are in
for i = 1 : length(srcFiles)
  filename = imread(['F:\matlab\face\data\',srcFiles(i).jpg]);
  holdImage(i) = imread(filename);

end save('testimagebase.mat','holdImage'); end

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Tony 2014-1-14

is there a way to just load everything in a folder regardless of the name of the file

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Answer 1

Image Analyst 2014-1-14

0
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/112187-saving-images-as-a-database#answer_120801

在 MATLAB Online 中打开

Try this snippet. Set folder to:

folder = 'F:\matlab\face\data';
ListOfImageNames = {};
ImageFiles = dir([folder'/*.*']); % Get all files.
for Index = 1:length(ImageFiles)
  baseFileName = ImageFiles(Index).name;
  [folder, name, extension] = fileparts(baseFileName);
  extension = upper(extension);
  % Let's save just those we are interested in:
  switch lower(extension)
  case {'.png', '.bmp', '.jpg', '.tif', '.avi'}
    % Allow only PNG, TIF, JPG, or BMP images
    ListOfImageNames = [ListOfImageNames baseFileName];
  otherwise
  end
end
% Now ListOfImageNames is a list of all image format files.
% Now do whatever you want with that list.