"No such file or directory" Error in sift.py

[shackenberg]

I run learn.py with the Caltech101 dataset, but I get follwowing error message:

calculating sift features for ./101_ObjectCategories/Faces/image_0285.jpg
working on  ./101_ObjectCategories/Faces/image_0285.jpg
./sift <tmp.pgm>./101_ObjectCategories/Faces/image_0285.jpg.sift
Traceback (most recent call last):
  File "learn.py", line 119, in <module>
    cat_features = extractSift(cat_files)
  File "learn.py", line 50, in extractSift
    sift.process_image(fname, features_fname)
  File "/home/my/Desktop/MBVWIC/sift.py", line 42, in process_image
    if os.path.getsize(resultname) == 0:
  File "/usr/lib/python2.7/genericpath.py", line 49, in getsize
    return os.stat(filename).st_size
OSError: [Errno 2] No such file or directory: './101_ObjectCategories/Faces/image_0285.jpg.sift'

But when I check the file image_0285.jpg.sift does exist.

[shackenberg]

The problem was caused by os.system(cmmd), which does not wait till the process finishes till it returns. Now replaced with subprocess.call(cmmd, shell=True).

[edess]

Hello ! Hope you're fine. Sorry to re-open this issue

I'm facing the same errors despite the update of subprocess.call(cmmd, shell=True). here is the screenshot .

problem: when I check the file image_0001.jpg.sift does exist.

Please, help me!

[shackenberg]

Hi Edess,

can you try to change this line https://github.com/shackenberg/Minimal-Bag-of-Visual-Words-Image-Classifier/blob/master/sift.py#L93

to:

if exists(filename) is False | os.path.getsize(filename) == 0:

If this fixes your problem I will change it in the repo.

[edess]

Hi shackenberg ,

I did as you said and changed " if exists(filename) != False | os.path.getsize(filename) == 0: " by " if exists(filename) is False | os.path.getsize(filename) == 0: "

And this yield to another error. here is the screenshot.

Actually, I found the same error when I was trying to find a solution (At that time, I made this like a comment """ if exists(filename) != False | os.path.getsize(filename) == 0: raise IOError("wrong file path or file empty: "+ filename)"""

Do you have any idea about the problem?

[shackenberg]

Sorry, no. I would have to try it out myself. But I probably wont have time in the next two or three weeks for that. :-(

But can you open a new issue, so that the issues don't get mixed up too much?

[edess]

Okay! Thanks!

I also opened a new issue today (issue number 7)