Binarization fails

[sonofmun]

When I run the command

nidaba batch --binarize sauvola:10,20,30,40 --ocr tesseract:grc+eng --willitblend -- /home/mmunson/ddd/extracted_books/uc1.b4034434/*.png

I get the following error message for every image:

Error in pixSauvolaBinarize: whsize too large for image
[2015-05-07 14:41:31,041: ERROR/MainProcess] Task nidaba.binarize.sauvola[28767f13-0328-4efb-8585-083f56555a25] raised unexpected: NidabaLeptonicaException('Binarization failed for unknownreason.',)
Traceback (most recent call last):
  File "/home/mmunson/envs/nidaba/local/lib/python2.7/site-packages/celery/app/trace.py", line 240, in trace_task
    R = retval = fun(*args, **kwargs)
  File "/home/mmunson/envs/nidaba/local/lib/python2.7/site-packages/nidaba/tasks/helper.py", line 61, in __call__
    ret = super(NidabaTask, self).__call__(*args, **nkwargs)
  File "/home/mmunson/envs/nidaba/local/lib/python2.7/site-packages/celery/app/trace.py", line 438, in __protected_call__
    return self.run(*args, **kwargs)
  File "/home/mmunson/envs/nidaba/local/lib/python2.7/site-packages/nidaba/plugins/leptonica.py", line 69, in sauvola
    lept_sauvola(input_path, output_path, whsize, factor)
  File "/home/mmunson/envs/nidaba/local/lib/python2.7/site-packages/nidaba/plugins/leptonica.py", line 111, in lept_sauvola
    raise NidabaLeptonicaException('Binarization failed for unknown'
NidabaLeptonicaException: Binarization failed for unknownreason.

[sonofmun]

BTW, I also got this error in the main screen (not on celery) after running this command:

Exception TypeError: "unsupported operand type(s) for +: 'NoneType' and 'str'" in <bound method PluginSource.__del__ of <pluginbase.PluginSource object at 0x7fcdb6080590>> ignored

[mittagessen]

Are you sure you're running the latest version? Configurations of algorithms are divided by ';' now with parameters divided by ',', i.e. to run sauvola with the 4 configurations the configuration would be sauvola:10;20;30;40. In addition, the CLI should detect incorrect parameter counts for parametrized tasks (binarization, OCR, and statistical measures) now. I apologize for changing it again, but it couldn't be helped.

The final exception is caused on program exit by the plugin framework. It does not affect operation in any way (as far as I can determine) and there's already a bug report attached to it.

[sonofmun]

This appears to have been a problem with the images I was trying to process and not Nidaba itself.