how to uplad and process multiply images

hi

i have 520 images i want to upload and make them black-white only (binary)

i know how to do it 1 by 1 but not sure how to do all at once

dont even know how to upload multiply images it gives me error when i drag t hem

i know i can use 'for' command but dont know how

thank you

Answer 1

[Jan]

See FAQ: How to process a sequence of files

Folder = 'C:\You\Base\Folder';
FileList = dir(fullfile(Folder, '*.jpg'));  % Use ** for recursive search
for iFile = 1:numel(FileList)
  File = fullfile(FileList(iFile).folder. FileList(iFile).name);
  ... % Now insert or call the code for converting 1 file here
end

[Sulaymon Eshkabilov]

Jan's answer is more uniform than my proposed answer.

Answer 2

[Sulaymon Eshkabilov]

It is doable, but your image file names need to be in a sequential order, e.g.: Image1.jpg, Image2.jpg, ...., etc.,

OR IM_01.jpeg, IM_02.jpeg, .., etc., OR IM1.jpg, IM2.jpg,... etc., OR something in a similar fashion.

If this is the case, then you can go ahead; otherwise, you'd need to rename them.

Once you get all your image file names sorted out, you can use something similar to the following type of string conversion procedure to make up the list of your image data file names. E.g.: IM1.jpg, IM2.jpg,... IM13.jpg and import them into MATLAB workspace.

for ii=1:13
MM{ii} =strcat('IM', num2str(ii), '.jpg')
% READ IMAGEs
DATA{ii} = imread(MM{ii});
end

Good luck

[Jan]

With using dir() you can get a list of files without the need to rename the files.