Thanks. That did the trick. I was able to switch to Alpha Numeric only. Here are the steps I took:
1) copied eng.* files into a new "Unpacked" directory I created. Then ran combine_tessdata -u to unpack: ...\tessdata\Unpacked>combine_tessdata -u eng.traineddata ./eng2. Extracting tessdata components from eng.traineddata Wrote ./eng.config Wrote ./eng.unicharset Wrote ./eng2.unicharambigs Wrote ./eng2.inttemp Wrote ./eng.pffmtable Wrote ./eng.normproto Wrote ./eng.punc-dawg Wrote ./eng.word-dawg Wrote ./eng.number-dawg Wrote ./eng.freq-dawg Wrote ./eng.cube-unicharset Wrote ./eng.cube-word-dawg Wrote ./eng.shapetable Wrote ./eng.bigram-dawg 2) Edited eng.config and added the line: tessedit_char_whitelist abcdefghijklmnopqrtsuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789 3)created a new eng.traineddata file using the following command: ...\tessdata\Unpacked>combine_tessdata eng. Combining tessdata files TessdataManager combined tesseract data files. Offset for type 0 is 140 Offset for type 1 is 358 Offset for type 2 is 7643 Offset for type 3 is 8690 Offset for type 4 is 980283 Offset for type 5 is 981099 Offset for type 6 is 997382 Offset for type 7 is 1001704 Offset for type 8 is 2085898 Offset for type 9 is 2112548 Offset for type 10 is -1 Offset for type 11 is 2113958 Offset for type 12 is 2115469 Offset for type 13 is 3177575 Offset for type 14 is 3240921 Offset for type 15 is -1 Offset for type 16 is -1 4) ran Tesseract on the image file I wanted to extract AlphaNumeric only characters and IT WORKED! On Thursday, September 4, 2014 5:30:19 AM UTC-4, shree wrote: > > http://tesseract-ocr.googlecode.com/svn/trunk/doc/combine_tessdata.1.html > > Combine_tessdata -u to unpack and get all files from the traineddata file > - that will have in it the unicharset also. > > I am not familiar with the cube files that you are changing, so can't > comment about that. > > > Shree Devi Kumar > ____________________________________________________________ > भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com > > > On Thu, Sep 4, 2014 at 7:49 AM, John Nilson <[email protected] > <javascript:>> wrote: > >> "did you unpack the eng.traineddata first to get all the files?" >> >> No. How do I do that? >> >> On Wednesday, September 3, 2014 9:23:08 PM UTC-4, shree wrote: >>> >>> did you unpack the eng.traineddata first to get all the files? >>> >>> Shree Devi Kumar >>> ____________________________________________________________ >>> भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com >>> >>> >>> On Wed, Sep 3, 2014 at 9:20 PM, John Nilson <[email protected]> wrote: >>> >>>> >>>> Any help would be greatly appreciated. >>>> >>>> I would like to do something fairly simple and that's reduce the types >>>> of characters Tesseract looks for to be just AlphaNumeric, 0-9 a-z A-Z >>>> . I'm using the very latest version 3.02.02. I want to do this because >>>> Tesseract is doing things like confusing M with |'U'| . Notice the pipe >>>> and >>>> single quotes. I'd like to remove any punctuation like that to reduce >>>> errors. >>>> >>>> My first attempt was to >>>> >>>> 1) Edit the default eng.cub.lm and eng.cub.lm_ files in the tessdata >>>> directory. >>>> 2) Remove the non-AlphaNumeric punctuation characters. >>>> 3) Run combine_tessdata to generate a new eng.traineddata >>>> >>>> Unfortunately this isn't working. Here's the directory listing and the >>>> output I get in red below. >>>> C:\Program Files (x86)\Tesseract-OCR\tessdata_NoPunctuation>dir >>>> Volume in drive C has no label. >>>> Volume Serial Number is F0DD-A475 >>>> >>>> Directory of C:\Program Files (x86)\Tesseract-OCR\tessdata_ >>>> NoPunctuation >>>> >>>> 09/03/2014 11:43 AM <DIR> . >>>> 09/03/2014 11:43 AM <DIR> .. >>>> 09/03/2014 10:30 AM <DIR> configs >>>> 02/03/2012 02:47 AM 21,876,572 eng - Copy.jpg >>>> 02/03/2012 03:15 AM 171,918 eng.cube.bigrams >>>> 02/03/2012 03:15 AM 38 eng.cube.fold >>>> 09/03/2014 10:38 AM 137 eng.cube.lm >>>> 09/03/2014 10:38 AM 137 eng.cube.lm_ >>>> 02/03/2012 03:15 AM 857,304 eng.cube.nn >>>> 02/03/2012 03:15 AM 254 eng.cube.params >>>> 02/03/2012 03:15 AM 13,020,078 eng.cube.size >>>> 02/03/2012 03:15 AM 2,444,187 eng.cube.word-freq >>>> 02/03/2012 03:15 AM 996 eng.tesseract_cube.nn >>>> 09/03/2014 11:46 AM 0 eng.traineddata >>>> 09/03/2014 11:44 AM 0 lang.traineddata >>>> 02/03/2012 03:15 AM 10,562,727 osd.traineddata >>>> 09/03/2014 10:30 AM <DIR> tessconfigs >>>> 13 File(s) 48,934,348 bytes >>>> 4 Dir(s) 666,501,136,384 bytes free >>>> >>>> C:\Program Files >>>> (x86)\Tesseract-OCR\tessdata_NoPunctuation>combine_tessdata >>>> eng. >>>> Combining tessdata files >>>> Error opening unicharset file >>>> Error combining tessdata files into eng.traineddata >>>> >>>> C:\Program Files (x86)\Tesseract-OCR\tessdata_NoPunctuation> >>>> >>>> >>>> >>>> >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "tesseract-ocr" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to [email protected]. >>>> To post to this group, send email to [email protected]. >>>> Visit this group at http://groups.google.com/group/tesseract-ocr. >>>> To view this discussion on the web visit https://groups.google.com/d/ >>>> msgid/tesseract-ocr/b2356fd1-be8c-45c7-9f18-afa2a459eef9% >>>> 40googlegroups.com >>>> <https://groups.google.com/d/msgid/tesseract-ocr/b2356fd1-be8c-45c7-9f18-afa2a459eef9%40googlegroups.com?utm_medium=email&utm_source=footer> >>>> . >>>> For more options, visit https://groups.google.com/d/optout. >>>> >>> >>> -- >> You received this message because you are subscribed to the Google Groups >> "tesseract-ocr" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> To post to this group, send email to [email protected] >> <javascript:>. >> Visit this group at http://groups.google.com/group/tesseract-ocr. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/tesseract-ocr/7bdffe5d-cdfd-43e4-805c-340231b0a112%40googlegroups.com >> >> <https://groups.google.com/d/msgid/tesseract-ocr/7bdffe5d-cdfd-43e4-805c-340231b0a112%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> For more options, visit https://groups.google.com/d/optout. >> > > -- You received this message because you are subscribed to the Google Groups "tesseract-ocr" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/tesseract-ocr. To view this discussion on the web visit https://groups.google.com/d/msgid/tesseract-ocr/ae30bcd7-7831-4181-a32d-cc7ba511788a%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
