How to list and load only the first file in folder?

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

[darova]

Can't you import them by name?

[Stephen23]

"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

[Dawid Strzelczyk]

The files are on a server and for someone with bad internet connection the loading last about 1-2 minutes.

Answer 1

[Sahithi Kanumarlapudi]

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

https://www.mathworks.com/help/matlab/ref/dir.html#bup_80o-1

Hope this helps!

[darova]

He asked if there is another way to get file names rather than using dir

[Sahithi Kanumarlapudi]

As far as I understood the question, he just needs a way to access first few files instead of all the files.

[Dawid Strzelczyk]

I am looking for another way but thanks for the answer!