An error will occur if the input sequence does not start with "0000"

[tanglangxia]

When the input sequence does not start with "0000," an error will occur. In most cases during animation production,

sequences often start with "0001." Currently, in the code, if a sequence starts with "0001," it will directly look for a non-existent "0002," resulting in the error: FileNotFoundError: [Errno 2] No such file or directory: 'dataset/test/XXX\gt\0002.png'.

If the --mode nearest command is used, it will throw an "IndexError: list index out of range" error.

The program will only work properly if the starting frame number is set to "0000."