Randomly selecting images from a directory
9 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
AK
am 25 Mai 2021
Beantwortet: Image Analyst
am 25 Mai 2021
Hello,
I have a directory of 10000 JPEG files. I want to write a script that can randomly select 100 images from this directory and save these images to a new folder on my desktop. How do I do this?
Thank you!
0 Kommentare
Akzeptierte Antwort
J. Alex Lee
am 25 Mai 2021
Use "dir" and "randperm"
4 Kommentare
J. Alex Lee
am 25 Mai 2021
eagle eyes! yea, i have nothing really to add to what Jan answered in previous post.
Weitere Antworten (1)
Image Analyst
am 25 Mai 2021
This is how I'd do it:
fileList = dir('*.jp*');
numFiles = length(fileList)
orderToUse = randperm(numFiles);
for k = 1 : numFiles
% Get what random index this one is.
index = orderToUse(k);
% Construct the full filename.
fullFileName = fullfile(fileList(index).folder, fileList(index).name);
fprintf('Processing #%d of %d:\n which is file #%d in the list : %s\n',...
k, numFiles, index, fullFileName);
% Now do something with the file....
end
0 Kommentare
Siehe auch
Kategorien
Mehr zu File Operations finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!