how to read image from folder with many subfolder directories

Question

riya shahrin 2020-3-28

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/513516-how-to-read-image-from-folder-with-many-subfolder-directories

评论： Image Analyst 2022-11-16

采纳的回答： Image Analyst

I need to read images from many subfolders in a fixed folder for further processing of image in a loop.

For better understaning a flowchart is given here.

My matlab code and datasetImage folder are in same folder.I need to read image .tif image in every subfolders.For note there are some folders which is missing like IM005.It will be very helpfull if anyone can help me to read ***.TIF file for further processing.Thanks in advance.

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Image Analyst 2020-3-28

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/513516-how-to-read-image-from-folder-with-many-subfolder-directories#answer_422518

在 MATLAB Online 中打开

Try this:

% Get a list of all TIFF files in the current folder AND in all subfolders below it.
fileListing = dir('**/*.tif*');
% For each file we learned of, process it...
numberOfFiles = length(fileListing)
for k = 1 : numberOfFiles
	% Get the full filename (folder & base file name) of this particular file.
	thisFullFileName = fullfile(fileListing(k).folder, fileListing(k).name);
	fprintf('Processing image %d of %d : %s...\n', k, numberOfFiles, thisFullFileName);
	% Now do something with this image. For example, display it:
	% First read image into a variable.
	thisImage = imread(thisFullFileName);
	% Now display it.
	imshow(thisImage);
	drawnow; % Force immediate refresh of screen.
	% Now perform other operations on the image if you want...
end

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Image Analyst 2020-3-28

It doesn't matter if some files or folders are "missing" - the fileListing will contain a list of only those files that are there and process only those. You can put your feature extraction below the line of code that says "Now perform other operations...".

请先登录，再进行评论。

Answer 2

Ameer Hamza 2020-3-28

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/513516-how-to-read-image-from-folder-with-many-subfolder-directories#answer_422475

在 MATLAB Online 中打开

Try something like this

files = dir('**/*.tiff');
for i=1:numel(files)
    filename = fullfile(files(i).folder, files(i).name);
    
    % do preocessing on images. for example:
    im = imread(filename);
    % more code
end