Azure Machine Learning studio - Images which have filename containing square brackets is not shown in outputs folder.

Question

Hi, I am using Azure Machine Learning studio.

I trained my deep learning model on computing cluster, and then outputs images onto 'outputs' directory.
However, in Experiment > Run > outputs + logs tab, directories was displayed instead of my images.

Is it possible to get my images from 'outputs' directory?

After investigation, I recognized that images which have filename containing square brackets is not shown in the tab.
For instance, if I created 'outputs/test[0].jpg', then 'outputs/test' directory was shown in the tab.

[Sample code]

import cv2
import numpy as np
from pathlib import Path

# Check whether output directory exists or not
output_dir = Path('./outputs/')
if not output_dir.exists():
    output_dir.mkdir()

# Generate test image
IMAGE_SIZE = (28, 28)

test_image = np.zeros(IMAGE_SIZE)

# Save image with filename which contained / not contained square brackets
# 'test.jpg' and 'test' directory will be shown in the 'outputs' directory, however 'test[].jpg' and 'test[0].jpg' are disappeared.
cv2.imwrite(str(output_dir / 'test.jpg'), test_image)
cv2.imwrite(str(output_dir / 'test[].jpg'), test_image)
cv2.imwrite(str(output_dir / 'test[0].jpg'), test_image)

Answer 1

Hi, it probably recognizes the square bracket as wildcard. Try using a double-backticks to escape the brackets, otherwise, I recommend you rename without the brackets and train again.

cv2.imwrite(str(output_dir / 'test``[``].jpg'), test_image)

Answer 2

Appreciate your reply.

Although I tried adding double-backticks to escape square brackets, I cannot find my images in the workspace.

[Fixed Code]

(Omission)  
  
# Save image with filename which contained / not contained square brackets  
cv2.imwrite(str(output_dir / 'test.jpg'), test_image)  
cv2.imwrite(str(output_dir / 'test[].jpg'), test_image)  
cv2.imwrite(str(output_dir / 'test[0].jpg'), test_image)  
cv2.imwrite(str(output_dir / 'test``[``].jpg'), test_image)  # Escape square brackets with double-backticks  
cv2.imwrite(str(output_dir / 'test``[0``].jpg'), test_image) # Escape square brackets with double-backticks  

Results:

New directory with backticks appeared.

And I will rename image files from next experiment,
however I wish to get my image generated in my previous experiment because of the experiment's long elapsed time.
Are there any good methods for that?

Answer 3

Appreciate your help.

I will re-execute my experiment with images renaming.