RuntimeError: Found 0 images in subfolders of: ./data

[bemoregt]

Hi, @smartkiwi @ezyang @Smerity @dnouri @bartolsthoorn

I met this error in DCGAN training with folder mode
$ python3 main.py --dataset folder --dataroot './data'

File "/usr/local/lib/python3.5/dist-packages/torchvision/datasets/folder.py", line 97, in init
"Supported image extensions are: " + ",".join(IMG_EXTENSIONS)))
RuntimeError: Found 0 images in subfolders of: ./data
Supported image extensions are: .jpg,.JPG,.jpeg,.JPEG,.png,.PNG,.ppm,.PPM,.bmp,.BMP

But, There are many jpg images in ../dcgan/data folder.
What's wrong with me?

Thanks in advance .

Ubuntu 16.04 LTS
1080ti

[ezyang]

Try running the script with the current working directory inside dcgan.

[bemoregt]

Of course, I've already done such that.

What's wrong with me?

If the filenames must have a certain format?

Thanks.

[ezyang]

What about passing an absolute path to --dataroot?

[bemoregt]

Also, I've already try absolute path.

Like this:
:~/examples/dcgan$ python3 main.py --dataset folder --dataroot '/home/kraken/examples/dcgan/data'

But, met same error message

What's wrong with me?

Thanks.

[bartolsthoorn]

Are your images placed in a subfolder of the data folder? You should not pass a folder with the image files directly since this is not the structure that is often used (usually the photos are bundled in folders by class name). If your images are directly in data/ try to move everything into data/1/ and run again? Den 18 okt. 2017 4:47 fm skrev "Gromit Park" <notifications@github.com>:

…

Also, I've already try absolute path. Like this: :~/examples/dcgan$ python3 main.py --dataset folder --dataroot '/home/kraken/examples/dcgan/data' But, met same error message What's wrong with me? Thanks. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#236 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAGgWu8Q6w3dr92qwgESILR3JT-3LuDSks5stWbTgaJpZM4P8EPU> .

[bemoregt]

OK, @bartolsthoorn.

I'll try that. now~

Thanks.

[bemoregt]

Hi, @bartolsthoorn.

It works~!
I fixed It.

Thanks a lot!

[rohitj559]

Are your images placed in a subfolder of the data folder? You should not pass a folder with the image files directly since this is not the structure that is often used (usually the photos are bundled in folders by class name). If your images are directly in data/ try to move everything into data/1/ and run again? Den 18 okt. 2017 4:47 fm skrev "Gromit Park" notifications@github.com:

I did not quiet understand this. I am facing a similar issue. Could you please help me understand this better?

[QimingChen]

I met the same problem. I solved it by trying a whole day. It is interesting but needs time to figure out.

Let's say I am going to use ImageFolder("/train/") to read jpg files in folder train.
The file structure is
/train/
-- 1.jpg
-- 2.jpg
-- 3.jpg

I failed to load them, leading to errors:
RuntimeError: Found 0 images in subfolders of: ./data
Supported image extensions are: .jpg,.JPG,.jpeg,.JPEG,.png,.PNG,.ppm,.PPM,.bmp,.BMP

I read the solution above and tried tens of times. When I changed the structure to
/train/1/
-- 1.jpg
-- 2.jpg
-- 3.jpg
But the read in code is still -- ImageFolder("/train/"), IT WORKS.

It seems like the program tends to recursively read in files, that is convenient in some cases.

Encountered the same issue, but solved by QimingChen's solution.
Anyway, the logic of detecting a path is a bit strange.

[aakashbehl1994]

thanks @QimingChen, it worked for me after looking at your explanation.

[rafaelsimonmaia]

Can also confirm that @QimingChen, solution works.

[Mamoona81]

@rafaelsimonmaia @aakashbehl1994 @QimingChen
I m facing issuing in loading ImageFolder("/train/") to read png files in folder train.

The file structure is
/train/
>label1
>label2
>label3
Each subfolders have pngs like label1 has mix numbers png's : 1,3,4,8,9....1000
label2 has 118,2,.....3000 label3 folder has 3001..3064 images .

I failed to load them, leading to errors:
RuntimeError: Found 0 images in subfolders of: ./data
Supported image extensions are: .jpg,.JPG,.jpeg,.JPEG,.png,.PNG,.ppm,.PPM,.bmp,.BMP.
Can anyone guide me please

[sourcecode369]

@QimingChen thanks for the solution.