How to list and load only the first file in folder?
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Hello,
I have about 1500 image files in a folder and listing all using dir() last too long and sometimes crashes the AppDesigner. Is there a way to list only the first image or the first n images at a given time?
Dawid
3 个评论
Stephen23
2020-4-23
"I have about 1500 image files in a folder and listing all using dir() last too long and sometimes crashes the AppDesigner."
This is not the fault ot dir, it is the fault of a badly written GUI.
I regularly use dir to return the names (and other data) on many thousands of files at once, it never causes a problem.
"Is there a way to list only the first image or the first n images at a given time?"
Basic MATLAB indexing:
S = dir(..);
S(1).name
回答(1 个)
Sahithi Kanumarlapudi
2020-4-23
Hi,
By using the 'dir' function, you would know the number of files present in the folder. You can then access the required number of files using a loop and by accessing the 'name' property of the file. The following might serve you as an example for displaying the names of first 'n' files.
dirFiles = dir(folderpath);
for i = 1:n
disp(dirFiles(i).name)
end
Similarly you can use other properties like 'folder' to perform your required operation. For more information on 'dir' method refer to the following link
Hope this helps!
3 个评论
Sahithi Kanumarlapudi
2020-4-23
As far as I understood the question, he just needs a way to access first few files instead of all the files.
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