Thanks a lot Shree. I will try it tonight. Best regards, Guru
On Monday, April 1, 2019 at 1:35:27 AM UTC-7, shree wrote: > > See > https://groups.google.com/forum/?utm_medium=email&utm_source=footer#!searchin/tesseract-ocr/zdenko%7Csort:date/tesseract-ocr/xvTFjYCDRQU/SI6du-4JBAAJ > Example how to use tessseract C-API in python with cffi > > On Mon, Apr 1, 2019 at 1:23 PM Guru Govindan <[email protected] > <javascript:>> wrote: > >> Hi There, >> I recently migrated to tesseract 4 and tried pytesseract. But that is too >> slow for the kind of application I am creating. >> >> I wanted to write my own python wrapper that would use the tesseract.so.4 >> directly. >> I saw the example on the github page for the same ( >> https://github.com/tesseract-ocr/tesseract/wiki/APIExample) >> >> But I have issues initializing TessBaseAPIInit4(). >> >> I have multiple variables that I want to set and it keeps getting >> segmentation fault. >> I am not sure what I am doing wrong. I also tried the C++ version of it. >> Please let me know if it is a known problem. >> >> import os >> from ctypes import * >> >> >> lang = "eng" >> filename = "/data/framecache/testing.jpg" >> libname = "/usr/local/lib/libtesseract.so.4" >> >> >> TESSDATA_PREFIX = os.environ.get('TESSDATA_PREFIX') >> if not TESSDATA_PREFIX: >> TESSDATA_PREFIX = "/home/vagrant/reelz_base/shared/tessdata" >> >> >> print "TESSDATA_PREFIX={}".format(TESSDATA_PREFIX) >> >> >> tesseract = cdll.LoadLibrary(libname) >> tesseract.TessVersion.restype = c_char_p >> tesseract_version = tesseract.TessVersion() >> >> >> >> >> api = tesseract.TessBaseAPICreate() >> print api >> >> >> vars_vec = ["tesseract_char_whitelist", >> "tessedit_pageseg_mode", >> "image_default_resolution"] >> >> >> vars_values = ["ABCDEFGHIJKLMNOPQRSTUVWXYZ", >> "6", >> "70"] >> >> >> >> >> vec_arr_type = c_char_p * len(vars_vec) >> vars_vec_arr = vec_arr_type() >> for i, val in enumerate(vars_vec): >> vars_vec_arr[i] = val >> >> >> print "vars_vec_arr={}".format(vars_vec_arr) >> >> >> val_arr_type = c_char_p * len(vars_values) >> vars_val_arr = val_arr_type() >> >> >> for i, val in enumerate(vars_values): >> vars_val_arr[i] = val >> >> >> print "vars_val_arr={}".format(vars_val_arr) >> >> >> >> >> >> >> rc = tesseract.TessBaseAPIInit4(api, TESSDATA_PREFIX, lang , 2, None, 0, >> vars_vec_arr, vars_val_arr, 0, c_bool(False)) >> >> >> >> -- >> 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 https://groups.google.com/group/tesseract-ocr. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/tesseract-ocr/10d9034d-f516-405a-be23-fe23d25d8ea4%40googlegroups.com >> >> <https://groups.google.com/d/msgid/tesseract-ocr/10d9034d-f516-405a-be23-fe23d25d8ea4%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> For more options, visit https://groups.google.com/d/optout. >> > > > -- > > ____________________________________________________________ > भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com > -- 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 https://groups.google.com/group/tesseract-ocr. To view this discussion on the web visit https://groups.google.com/d/msgid/tesseract-ocr/96414371-06e5-4d12-84cd-7f1902555301%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
