Hello.
In selecting an OCR engine the other day, a few options of GOCR seemed 
appealing to me, namely:

"*-C string*
only recognise characters from *string*, this is a filter function in cases 
where the interest is only to a part of the character alphabet, you can use 
0-9 or a-z to specify ranges, use -- to detect the minus sign"
and"*-l* *level*set grey level to *level* (0<160<=255, default: 0 for 
autodetect), darker pixels belong to characters, brighter pixels are 
interpreted as background of the input image"
Just wondering if tesseract had these or similar options (the man page 
seems exceedingly sparse in terms of command line 
options): http://manpages.ubuntu.com/manpages/precise/man1/tesseract.1.html
If such options don't exist, possibly consider this a feature request to 
make it easier for newbies like myself to choose and use tesseract.Thanks!
-roger-

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