create new folders by mkdir()

i want to create new folders by mkdir() and giving(naming) it numbers sequentially folder1, folder2 .. where no repetead and how to check if folder name found skip and give next number as name for new folder .. please help ,, this part of my project and i havnt time ..

Answer 1

[the cyclist]

MAX_FOLDER_NUMBER = 10;
FOLDER_ROOT_NAME = 'folder';

for n = 1:MAX_FOLDER_NUMBER
    folder_name = [FOLDER_ROOT_NAME,sprintf('%d',n)];
    if not(exist(folder_name,'dir'))
        mkdir(folder_name)
    end
end

I tried to be very explicit about what each step is about. Also, this code checks whether the folder exists, but I don't actually think that is necessary. I don't think mkdir does anything if you try to create a directory that already exists, so you could just do

MAX_FOLDER_NUMBER = 10;
FOLDER_ROOT_NAME = 'folder';

for n = 1:MAX_FOLDER_NUMBER
    mkdir([FOLDER_ROOT_NAME,sprintf('%d',n)])
end

or just

for n = 1:10
    mkdir(['folder',sprintf('%d',n)])
end

if you don't want my parameterization.

[osama]

@ the cyclist Thank you , i will try this code and tell you of course i need to check if folder exist then gining next number name

[osama]

Another question please , how to put this cycle n=1:10 inside GUI function, cause i need to create folder every time that i start code

[the cyclist]

I'm not quite sure what you mean. I suggest you open a new, detailed question related to the GUI, because that is quite different from this topic.

Answer 2

[kousar majeed]

i just want to create folder and name it faces

[the cyclist]

mkdir faces

See mkdir documentation for details.

[kousar majeed]

clc;
close all;
clear all;

% assigning the name of sample avi file to a variable
filename = 'Chili.avi.mp4';
%reading a video file
mov = VideoReader(filename);
% Defining Output folder as 'Frames'
opFolder = fullfile(cd, 'Frames');
%if  not existing 
if ~exist(opFolder, 'dir')
%make directory & execute as indicated in opfolder variable
mkdir(opFolder);
end
%getting no of frames
numFrames = mov.NumberOfFrames;

%setting current status of number of frames written to zero
numFramesWritten = 0;
%for loop to traverse & process from frame '1' to 'last' frames 
for t = 1 : numFrames
currFrame = read(mov, t);    %reading individual frames
opBaseFileName = sprintf('%3.3d.png', t);
opFullFileName = fullfile(opFolder, opBaseFileName);
imwrite(currFrame, opFullFileName, 'png');   %saving as 'png' file
%indicating the current progress of the file/frame written
progIndication = sprintf('Wrote frame %4d of %d.', t, numFrames);
disp(progIndication);
numFramesWritten = numFramesWritten + 1;
end      %end of 'for' loop
progIndication = sprintf('Wrote %d frames to folder "%s"',numFramesWritten, opFolder);
disp(progIndication);
%End of the code
% make another folder with the name of Faces
mkdir Faces

this is my code for reading a video and extracting frame from video and save it in folder of frame....

then i created another folder with name of faces but folder was not created?

[the cyclist]

Your code works fine for me, from a fresh start of MATLAB R2018b.

Are you certain that your code makes it to that line? For example, do you see the output of the line

disp(progIndication);

?

Are you sure you are looking for the directory Faces in the correct place -- the workspace at the moment this line runs? Also, are you looking for faces instead of Faces (case-sensitive)?

[kousar majeed]

i download a video from internet which is 6 to 7 min and there are 7143 images are there.

i made one folder which is frame and second folder which is faces

now i need to upload or with the help of move command to load image from frame folder with the help of GUI and show the image extract the image and crop is and save it in face folder?

need to do the above task to load image in to GUI nad extract the image