why i can not use imwrite?

I am using imwrite function in matlab but it shows me : ??? Error using ==> imwrite at 457 Can't open file "moosh.jpg" for writing. You may not have write permission.

Error in ==> Untitled at 4 imwrite(pic , 'moosh.jpg');

I searched forum and other people have the same problem too but there were no certain answer.is the problem is something about my win 8?? please help.it is a very simple problem that makes me nervous. thank you my code is:

    pic=imread('1.jpg');
   imwrite(pic , 'moosh.jpg');

Answer 1

[Image Analyst]

What folder are you trying to save it in? I noticed you are not using fullfile() and trying to save into whatever the current folder happens to be. That's not as robust as saving it with the full folder and base filename and extension. If you hard code the folder name in there do you still get the error?

fullFileName = fullfile('d:\myImages\Behard', 'moosh.jpg');
imwrite(fullFileName);

You might have that file open in another program. Does it do the same after restarting MATLAB or the computer?

Answer 2

[Azzi Abdelmalek]

Maybe the file moosh.jpg exists already and is read only. Try another name.

[Behrad kiani]

I checked it.it wasn't

[Azzi Abdelmalek]

change a folder (from C: to D: for example)