Troubleshooting

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Troubleshooting Permission Problems:

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This issue can often occur on Amazon Web Services (AWS), and can be solved by using chmod like this:

chmod u+x ./lum-transfer.py

chmod u+x ./linear-color-transfer.py

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Image Problems:

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The image specified for the --target_image parameter, is not in the RGB color space:

Traceback (most recent call last):
  File "linear-color-transfer.py", line 67, in <module>
    output_img = match_color(target_img, source_img, mode=transfer_mode, eps=float(eps_value))
  File "linear-color-transfer.py", line 38, in match_color
    t = t.transpose(2,0,1).reshape(3,-1)
ValueError: total size of new array must be unchanged

The image specified for the --source_image parameter, is not in the RGB color space:

Traceback (most recent call last):
  File "linear-color-transfer.py", line 67, in <module>
    output_img = match_color(target_img, source_img, mode=transfer_mode, eps=float(eps_value))
  File "linear-color-transfer.py", line 42, in match_color
    s = s.transpose(2,0,1).reshape(3,-1)
ValueError: total size of new array must be unchanged

To fix either of these two issues, one can use ImageMagick like this:

convert problem_image.png -colorspace rgb fixed_image.png

Or you can use different software to change the problem image's color space.

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