how to rectify the below error...

when i execute a training file i get the below error;

 ??? Error using ==> imread at 359
 Can't open file "Face Granules\FGr13.jpg" for reading;
 you may not have read permission.

 Error in ==> Training at 105

After getting the above error if i click any m-file i get the below error

 ??? C:\Program Files\MATLAB\R2009b\toolbox\matlab\uitools\uiopen.m: Too many files open;
 check that FILES = 20 in your CONFIG.SYS file.

then i need to close matlab and open it again... the training is getting failed due to this error... please can someone help me to solve this error

Answer 1

[Thorsten]

You don't have to close Matlab, just

close all

Probably you have opened files using fopen, and forgot to close them using fclose?

[Elysi Cochin]

i used

 close all

but still i had that error...

i had used fopen... let me check with fclose and i'll reply...

[Image Analyst]

I think he meant:

fclose('all')

But this only closes files that were opened in MATLAB, not by any of your other programs.

[Elysi Cochin]

thank you all... it worked fine with

 fclose('all');

[Image Analyst]

I think that's somewhat dangerous unless you know what is open. I think you should open and close each file individually. That's the cleanest way to do it. If you just blindly call fclose('all') then it's possible that you might close something you did not intend to. That's why it's better to close each file independently and close it when it makes sense to close it, not just at some arbitrary time later, blindly, and with a sledgehammer.

Answer 2

[Image Analyst]

Does the file even exist? Try this

if exist('Face Granules\FGr13.jpg', 'file')
    uiwait(helpdlg('File exists'));
else
    uiwait(warndlg('File does not exist on the search path!'));
end