Error using imwrite (line 463) Can't open file "C:\Program Files\MATL​AB\R2011b\​bin\frames​\fr1.jpj" for writing. You may not have write permission. Error in manzil (line 29) imwrite(im​g,outputFu​llFileName​,'jpg');

m executing the below code and obtaining error like this

1. PERMISSION IS DENIED FOR MKDIR
2. Error using imwrite (line 463) Can't open file "C:\Program Files\MATLAB\R2011b\bin\frames\fr1.jpj" for writing. You may not have write permission. Error in extractframe (line 29) imwrite(img,outputFullFileName,'jpg');

SO WHAT I SHD DO???

    if true
      % clc ; % clearing the command window
  n = input(' Enter the number of photos to be taken: ');
  intervel = input(' Enter the time(seconds) gap between succeessive photos: ');
  photosave = input(' Do you want to save the files(y/n): ','s');
  disp('Please wait...');
  outputFolder = fullfile(cd, 'Test');
  if ~exist(outputFolder, 'dir')
  clc ; % clearing the command window
  n = input(' Enter the number of photos to be taken: ');
  intervel = input(' Enter the time(seconds) gap between succeessive photos: ');
  photosave = input(' Do you want to save the files(y/n): ','s');
  disp('Please wait...');
  outputFolder = fullfile(cd, 'frames');
  % if ~exist(outputFolder, 'dir')
  % mkdir(outputFolder);
  % end
  obj = videoinput('winvideo',1);
  preview(obj);
  disp('Press Enter to start after webcam initialization.');
  pause;
  disp('First shot will taken after 3 second');
  pause(3);
  for i=1:n
  img=getsnapshot(obj);
  image(img);
  if(photosave == 'y')
  outputBaseFileName = sprintf('fr%d.jpj',i);
  outputFullFileName = fullfile(outputFolder, outputBaseFileName);
  imwrite(img,outputFullFileName,'jpg');
  end
  pause(intervel);
  end
  closepreview;

disp('The program successfully taken the photos');
disp('Done.');mkdir(outputFolder);
end
obj = videoinput('winvideo',1);
preview(obj);
disp('Press Enter to start after webcam initialization.');
pause;
disp('First shot will taken after 1 second');
pause(1);
for i=1:n
img=getsnapshot(obj);
image(img);
if(photosave == 'y')
outputBaseFileName = sprintf('fr%d.png',i);
outputFullFileName = fullfile(outputFolder, outputBaseFileName);
imwrite(img,outputFullFileName,'jpg');
end
pause(intervel);
end
closepreview;

disp('The program successfully taken the photos');
disp('Done.');
  end

Answer 1

[Image Analyst]

Unlike Windows XP, writing to anything under the Program Files folder in Windows 7 is practically prohibited, though there are ways around it. You're expected to keep all your documents on a secondary hard drive (like I do), or in the "C:\Users\yourLoginName\Documents" folder. Replace this:

outputFolder = fullfile(cd, 'Test');

with this:

outputFolder = 'C:\Users\Mohd\Test'; % or frames instead of test.

[Mohd Aquib]

thank u...its done

Answer 2

[Walter Roberson]

Start from a different directory so that you are not trying to write underneath the MATLAB directory