fix wrong output when --det=False

[GreatV]

before fix

paddleocr --image_dir 335849306-b6c1b619-2d1a-4932-be92-06c7bb8c044e.png --lang en --det False

[2024/06/03 09:26:41] ppocr INFO: ('(InvalidArgument) Broadcast dimension mismatch #12440', 0.9995993971824646)
Traceback (most recent call last):
  File "/Users/wangxin/miniconda3/envs/ppocr/bin/paddleocr", line 8, in <module>
    sys.exit(main())
  File "/Users/wangxin/repos/PaddleOCR/paddleocr.py", line 898, in main
    val += str(box[0]) + "," + str(box[1]) + ","
IndexError: string index out of range

paddleocr --image_dir 335849306-b6c1b619-2d1a-4932-be92-06c7bb8c044e.png  --det False 

[2024/06/03 09:26:48] ppocr INFO: ('(InvalidArgument) Broadcast dimension mismatch #12440', 0.9899256229400635)
Traceback (most recent call last):
  File "/Users/wangxin/miniconda3/envs/ppocr/bin/paddleocr", line 8, in <module>
    sys.exit(main())
  File "/Users/wangxin/repos/PaddleOCR/paddleocr.py", line 898, in main
    val += str(box[0]) + "," + str(box[1]) + ","
IndexError: string index out of range

after fix

paddleocr --image_dir 335849306-b6c1b619-2d1a-4932-be92-06c7bb8c044e.png  --det False --lang ch

[[('(InvalidArgument) Broadcast dimension mismatch #12440', 0.9899256229400635)]]
[2024/06/03 09:50:11] ppocr INFO: ('(InvalidArgument) Broadcast dimension mismatch #12440', 0.9899256229400635)

paddleocr --image_dir ./input/  --det False  --lang en --rec True --use_angle_cls True 

[2024/06/03 10:12:15] ppocr INFO: **********./input/333808456-01a58d72-74d9-439d-836b-2bb494f375fb.png**********
(1, 59, 97) None
[2024/06/03 10:12:15] ppocr INFO: ('6849sE0', 0.5022222399711609)
[2024/06/03 10:12:15] ppocr INFO: **********./input/334352202-c065007d-96b3-4a30-ab4d-42be47ec3ee8.png**********
(1, 40, 97) None
[2024/06/03 10:12:15] ppocr INFO: ('', 0.0)
[2024/06/03 10:12:15] ppocr INFO: **********./input/335849306-b6c1b619-2d1a-4932-be92-06c7bb8c044e.png**********
(1, 144, 97) None
[2024/06/03 10:12:15] ppocr INFO: ('(InvalidArgument) Broadcast dimension mismatch #12440', 0.9995993971824646)
[2024/06/03 10:12:15] ppocr INFO: **********./input/Image.png**********
(1, 40, 97) None
[2024/06/03 10:12:16] ppocr INFO: ('', 0.0)
[2024/06/03 10:12:16] ppocr INFO: **********./input/Image0.png**********
(1, 40, 97) None
[2024/06/03 10:12:16] ppocr INFO: ('', 0.0)
[2024/06/03 10:12:16] ppocr INFO: **********./input/Snipaste_2024-05-29_19-56-45.png**********
(1, 40, 97) None
[2024/06/03 10:12:16] ppocr INFO: ('E', 0.04727230221033096)
[2024/06/03 10:12:16] ppocr INFO: **********./input/result.png**********
(1, 40, 97) None
[2024/06/03 10:12:16] ppocr INFO: ('', 0.0)

[jzhang533]

LGTM