Hi,

Please excuse if this is the wrong place to report the issue (or maybe here in this repository or in https://github.com/tesseract-ocr/tesstrain?)

In short, the option option --exposures is not respected.

According to arguments.py, that reads:

    parser.add_argument(
        "--exposures",
        metavar="EXPOSURES",
        action="append",
        nargs="+",
        help="A list of exposure levels to use (e.g. -1,0,1).",
    )

the option can be used more than once and accepts more than one value. Therefore I tried the following:

$ python -m tesstrain --exposures 1 5 ...

then in tesseract.log we can see the following line that indicates that the values provided on the command line are overriden:

... - DEBUG - tesstrain.language_specific - exposures = [0] (was [['1', '5']])

And even more complex case:

$ python -m tesstrain --exposures 1 5 ... --exposures -1 ...

then in tesseract.log:

... DEBUG - tesstrain.language_specific - exposures = [0] (was [['1', '5'], ['-1']])

I would expect files to be generated: *.exp1.{tif,box,lstmf}, *.exp5.{tif,box,lstmf}, and *.exp-1.{tif,box,lstmf}, but only the files for exposure=0 are here: *.exp0.{tif,box,lstmf}

In the code, the value provided on the command line is overriden by this line https://github.com/stefan6419846/tesstrain_package/blob/main/tesstrain/language_specific.py#L1327-L1328 that reads

if not EXPOSURES:
  EXPOSURES = [0]

If I understand correctly, the culprit of the problem is this line https://github.com/stefan6419846/tesstrain_package/blob/main/tesstrain/language_specific.py#L920 that does not use the values from the command line:

EXPOSURES: List[int] = []

If it can be changed to something like:

EXPOSURES: List[int] = [v for vs in ctx.exposures for v in vs]

this should fix the issue.

Thanks again,

BR, Nikolai

Hi

If i am not mistaken, this very repository contains python tesstrain package that is installed via pip install tesstrain. If not, please disregard this issue.

I have installed tesstrain==0.1.2 and have an issue running the command, namely

FileNotFoundError: [Errno 2] No such file or directory: 'path/to/output_dir/eng.training_files.txt

This is due to this line: https://github.com/stefan6419846/tesstrain_package/blob/main/tesstrain/generate.py#L379

 with open(lstm_list, encoding="utf-8", newline="\n") as fd:
        fd.write("\n".join(dir_listing))

as can be seen, here the output file is opened for reading only, which is the default mode for opening files (https://docs.python.org/3.10/library/functions.html#open).

In the other repository, this line uses correct mode correct: https://github.com/tesseract-ocr/tesstrain/blob/main/src/tesstrain/generate.py#L375

with pathlib.Path(lstm_list).open(mode="w", encoding="utf-8", newline="\n") as f:
        f.write("\n".join(dir_listing))

1. Can it be fixed and published to pypy?
2. It would be nice to sync two repositories: this one and what is in https://github.com/tesseract-ocr/tesstrain/src or delete one of them to remove confusion.

thanks in advance!

BR, Nikolai

Hello

I have been running tesstrain tool and seen it printing lines like this to the log file:

[2024-03-26 02:01:39,355] - DEBUG - tesseract - read_params_file: Can't open /path/to/tessdata_best/configs/

The directory exists (it is TESSDATA_PREFIX). The message is not an error, the script continues running and completes successfully. The message is however misleading, it makes me think something is wrong. Would it be possible to silence it?

The above message is generated when this line

            future = executor.submit(
                run_command,
                "tesseract",
                img_file,
                pathlib.Path(img_file).with_suffix(""),
                *box_config,
                config,   # <-- this is "" and causes a message being printed
                env=tessdata_environ,
            )

Best regards,
Nikolai