MATLAB Answers

0

Problem with imshow command

I am trying to display multiple images in one figure using the following code:
[imgs labels] = readMNIST('t10k-images-idx3-ubyte', 't10k-labels-idx1-ubyte', 50, 10);
for i=2:50
im=imgs(:,:,i);
im=255.*im;
name = ['image',num2str(i),'.jpeg'];
imwrite (im,['image',num2str(i),'.jpeg']);
end
imshow(im);
But the code gives this error:
Error using fopen
First input must be a file name of type char, or a file identifier of type double.
Error in imshow (line 25)
fid = fopen(imgFile, 'r', 'b');
Error in test (line 24)
imshow(BW2,'notruesize')
if I remove the imshow (im); command, the code works fine and save the image files without any problem. I am using Matlab 2014b. Thanks in advance.

  0 Comments

Sign in to comment.

Tags

3 Answers

 Accepted Answer

Thanks for the answers. But it was may be some corrupted files problem. I have re-installed matlab and everything is working fine now.

  0 Comments

Sign in to comment.


Answer by Ashish Uthama on 14 May 2015

Which imshow are you using? line 25 of the toolbox version does not appear to have an fopen.
Try which -all imshow. You might have a shadowed version.

  2 Comments

Thanks, but no. Still giving this same error.
What did
which -all imshow
report in its output?
Also try
clear imshow
in case you just happen to have a function handle by that name around.

Sign in to comment.


Answer by Image Analyst
on 15 May 2015

I don't see 'notruesize' as being one of the available input arguments. Why are you sending that in when it's not allowed?

  0 Comments

Sign in to comment.