Hi,
I am new to ocropus and encountered the following problem.
I ran "ocropus-gpageseg" on output binary image of  "ocropus-nlbin". 
But i am getting the following error report.

output/0001.bin.png
scale 16.5831239518
computing segmentation
computing column separators
computing lines
propagating labels
spreading labels
number of lines 60
finding reading order
writing lines
Traceback (most recent call last):
  File "/usr/local/bin/ocropus-gpageseg", line 364, in <module>
    process1((f,i+1))
  File "/usr/local/bin/ocropus-gpageseg", line 344, in process1
    ocrolib.write_page_segmentation("%s.pseg.png"%outputdir,segmentation)
  File "/usr/local/lib/python2.7/dist-packages/ocrolib/toplevel.py", line 
211, in argument_checks
    raise e
ocrolib.toplevel.CheckWarning: 
CheckWarning for argument image of function <functionwrite_page_segmentation at 
0x273bde8>
<ndarray-2500180 (560, 698) int32 [0,65583]> of type <type 
'numpy.ndarray'>:excpect a page image 
(larger than 600x600)(This can happen occasionally during normal operations 
and isn't necessarily a bug or problem.)


And there is no line written in the subfolder.
Please explain what is the meaning of this report ?


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