labelme2coco.py unable to convert image in BMP format

[ZJDATY]

Provide environment information

python labelme2coco.py --input_dir D://Bamboo --output_dir bamboo --labels=labels1.txt --noviz

What OS are you using?

win11

Describe the Bug

(labelme) D:\pyworkspaces\labelme2coco>python labelme2coco.py --input_dir D://Bamboo --output_dir bamboo  --labels=label
s1.txt  --noviz
——————————————————————————————————————————————————
| Creating dataset dir: bamboo
| Image number:  0
| Json number:  1135
Traceback (most recent call last):
  File "labelme2coco.py", line 550, in <module>
    main()
  File "labelme2coco.py", line 534, in main
    x_train, x_test, y_train, y_test = train_test_split(feature_files, label_files, test_size=0.3)
  File "D:\ProgramData\Anaconda3\envs\labelme\lib\site-packages\sklearn\model_selection\_split.py", line 2172, in train_
test_split
    arrays = indexable(*arrays)
  File "D:\ProgramData\Anaconda3\envs\labelme\lib\site-packages\sklearn\utils\validation.py", line 356, in indexable
    check_consistent_length(*result)
  File "D:\ProgramData\Anaconda3\envs\labelme\lib\site-packages\sklearn\utils\validation.py", line 320, in check_consist
ent_length
    " samples: %r" % [int(l) for l in lengths])
ValueError: Found input variables with inconsistent numbers of samples: [0, 1135]

Expected Behavior

Unable to convert image in BMP format，When I changed the suffix to jpg, it became normal.

To Reproduce

No response