The easiest way to see box file layout for any language is to run 'text2image,' for training text sample of 2-3 lines.
On Sun, 3 Feb 2019, 07:42 Li-Chung Chou <[email protected] wrote: > Hi Shree, > > Thanks for your kindly response! It's very clear. Actually, I'm also > curious about some languages whose "character" might be consist of multiple > "glyphs" (not sure if I use correct English words to describle - sorry for > my poor English in advance) . Your example also include this part. Thank > you so much! > > Best Regards, > Li-Chung > > shree於 2019年1月30日星期三 UTC+8下午7時48分43秒寫道： >> >> also see >> >> >> https://github.com/tesseract-ocr/tesseract/blob/cfa787d976007f5866ce25fbd8e2a0223fc40fda/src/ccstruct/boxread.cpp#L165 >> >> >> https://github.com/tesseract-ocr/tesseract/blob/3ac33d59aeb93fc9dab13874a64ab0b73690d5eb/src/ccmain/applybox.cpp#L36 >> >> On Wed, Jan 30, 2019 at 5:15 PM Shree Devi Kumar <[email protected]> >> wrote: >> >>> AFAIK the textline option for box files (WordStr) has NOT been >>> implemented. >>> >>> The wordaround has been to use the bounding box for the whole line for >>> every character on a line. Ref: ocrd-train project >>> >>> Example: >>> >>> च 0 0 1965 128 0 >>> त् 0 0 1965 128 0 >>> व 0 0 1965 128 0 >>> ा 0 0 1965 128 0 >>> र 0 0 1965 128 0 >>> ि 0 0 1965 128 0 >>> ं 0 0 1965 128 0 >>> श 0 0 1965 128 0 >>> त् 0 0 1965 128 0 >>> स 0 0 1965 128 0 >>> ह 0 0 1965 128 0 >>> स् 0 0 1965 128 0 >>> र 0 0 1965 128 0 >>> ा 0 0 1965 128 0 >>> ब् 0 0 1965 128 0 >>> द 0 0 1965 128 0 >>> ं 0 0 1965 128 0 >>> 0 0 1965 128 0 >>> व 0 0 1965 128 0 >>> ा 0 0 1965 128 0 >>> य् 0 0 1965 128 0 >>> व 0 0 1965 128 0 >>> ा 0 0 1965 128 0 >>> ह 0 0 1965 128 0 >>> ा 0 0 1965 128 0 >>> र 0 0 1965 128 0 >>> ा 0 0 1965 128 0 >>> 0 0 1965 128 0 >>> >>> text2image creates tif and box files when given a training text and >>> font. That has bounding boxes per character. >>> >>> Example: >>> >>> d 111 4658 135 4698 0 >>> i 137 4658 148 4698 0 >>> f 149 4658 163 4698 0 >>> f 163 4658 177 4698 0 >>> e 178 4657 202 4690 0 >>> r 204 4657 221 4689 0 >>> e 222 4657 246 4689 0 >>> n 248 4657 272 4689 0 >>> t 273 4657 288 4694 0 >>> 288 4657 299 4697 0 >>> N 299 4657 323 4697 0 >>> e 325 4657 349 4689 0 >>> w 349 4657 383 4689 0 >>> 383 4656 390 4697 0 >>> A 390 4656 418 4697 0 >>> r 417 4656 434 4688 0 >>> t 435 4656 450 4693 0 >>> i 451 4656 462 4696 0 >>> c 464 4656 487 4688 0 >>> l 489 4656 500 4696 0 >>> e 502 4656 526 4688 0 >>> s 528 4656 550 4688 0 >>> 550 4651 561 4688 0 >>> p 561 4651 585 4688 0 >>> a 587 4656 610 4688 0 >>> g 612 4649 636 4688 0 >>> e 638 4655 662 4687 0 >>> 662 4655 674 4696 0 >>> 2 674 4655 696 4696 0 >>> 3 699 4654 723 4696 0 >>> 723 4654 734 4696 0 >>> a 734 4655 757 4687 0 >>> 757 4655 767 4695 0 >>> T 767 4655 791 4695 0 >>> o 791 4655 815 4687 0 >>> 815 4653 826 4696 0 >>> S 826 4653 851 4696 0 >>> e 852 4654 876 4686 0 >>> r 878 4654 895 4686 0 >>> v 895 4654 919 4686 0 >>> i 919 4654 930 4694 0 >>> c 932 4654 955 4686 0 >>> e 957 4654 981 4686 0 >>> 981 4654 994 4686 0 >>> ~ 994 4669 1016 4680 0 >>> ~ 1020 4669 1042 4680 0 >>> 1042 4653 1053 4685 0 >>> a 1053 4653 1076 4685 0 >>> 1076 4653 1087 4693 0 >>> d 1087 4653 1111 4693 0 >>> e 1113 4653 1137 4685 0 >>> t 1138 4653 1153 4690 0 >>> a 1154 4653 1177 4685 0 >>> i 1179 4653 1190 4693 0 >>> l 1192 4653 1203 4693 0 >>> s 1205 4653 1227 4685 0 >>> 1227 4653 1239 4693 0 >>> D 1239 4653 1264 4693 0 >>> C 1267 4651 1292 4693 0 >>> 1292 4651 1302 4693 0 >>> t 1302 4652 1317 4689 0 >>> h 1318 4652 1342 4692 0 >>> a 1344 4652 1367 4684 0 >>> t 1368 4652 1383 4689 0 >>> 1383 4652 1393 4692 0 >>> d 1393 4652 1417 4692 0 >>> o 1419 4652 1443 4684 0 >>> n 1445 4652 1469 4684 0 >>> ' 1472 4680 1479 4692 0 >>> t 1479 4651 1494 4689 0 >>> 1494 4651 1504 4689 0 >>> a 1504 4651 1527 4683 0 >>> s 1529 4651 1551 4683 0 >>> 1551 4651 1561 4691 0 >>> 7 1561 4651 1582 4691 0 >>> 1582 4651 1591 4691 0 >>> « 1591 4654 1609 4682 0 >>> « 1610 4654 1628 4682 0 >>> 1628 4651 1639 4691 0 >>> D 1639 4651 1664 4691 0 >>> a 1666 4651 1689 4683 0 >>> t 1690 4650 1705 4688 0 >>> e 1706 4650 1730 4682 0 >>> : 1733 4650 1741 4676 0 >>> 1741 4650 1751 4685 0 >>> # 1751 4650 1781 4685 0 >>> 1 1781 4650 1799 4690 0 >>> 1799 4650 1811 4690 0 >>> : 1811 4650 1819 4676 0 >>> 1819 4650 1827 4690 0 >>> A 1827 4650 1855 4690 0 >>> Z 1854 4650 1875 4690 0 >>> 1875 4689 1876 4690 0 >>> _ 110 4559 138 4561 0 >>> _ 138 4559 166 4561 0 >>> _ 166 4558 194 4561 0 >>> >>> On Wed, Jan 30, 2019 at 4:36 PM Jul ius <[email protected]> wrote: >>> >>>> Still interested in example of box files for tesseract 4... >>>> >>>> Doesn't anyone has an example for us? It would be great to see how we >>>> have to handle spaces in textlines. >>>> >>>> >>>> >>>> Am Montag, 28. Januar 2019 15:01:49 UTC+1 schrieb Jul ius: >>>>> >>>>> Hi, >>>>> >>>>> that would also be my next question. Don't we need anything like a >>>>> seperator? Some examples would be great. The amout of information on the >>>>> internet is very poor as tesseract 4 is new. >>>>> >>>>> Am Sonntag, 27. Januar 2019 18:20:06 UTC+1 schrieb Li-Chung Chou: >>>>>> >>>>>> Hi Timothy, >>>>>> >>>>>> I have the same question with Jul. Would you kindly share 1 >>>>>> 'textline' boxes file and its corresponding image file which you >>>>>> applied? I >>>>>> assume if I have one image containing one 'textline' as "Thanks", then I >>>>>> will have its corresponding box file as below contents: >>>>>> >>>>>> Thanks 10 10 500 30 0 //the 10 10 500 30 rectangle contains whole >>>>>> "Thanks" text? >>>>>> >>>>>> But I was wondering if my 'textline' has space character in it, does >>>>>> it still work? For example, if I have an image containing one 'textline' >>>>>> as >>>>>> "Thank you", will its box file looks like this? >>>>>> >>>>>> Thank you 10 10 800 30 0 //the 10 10 800 30 rectangle contains whole >>>>>> "Thank you" text? >>>>>> >>>>>> Not sure if my understainding is correct or not - it's highly >>>>>> appreciated if you can share some examples or experience to us. Thank you >>>>>> very very much! >>>>>> >>>>>> Li-Chung >>>>>> >>>>>> Timothy Snyder於 2019年1月25日星期五 UTC+8下午10時47分47秒寫道： >>>>>>> >>>>>>> I have successfully trained Tesseract 4.0 using boxes that cover an >>>>>>> entire line. I was similarly confused by the mismatch between the docs >>>>>>> and >>>>>>> that example. I haven't tested training with character-bounding boxes >>>>>>> but I >>>>>>> can confirm that textline boxes works fine. >>>>>>> >>>>>>> On Fri, Jan 25, 2019 at 5:56 AM Jul ius <[email protected]> wrote: >>>>>>> >>>>>>>> Hi, >>>>>>>> >>>>>>>> I'm interested in training tesseract 4 with real data. As the >>>>>>>> documentation seems very poor and only captures training with font >>>>>>>> files, I >>>>>>>> have a general question. >>>>>>>> >>>>>>>> On: >>>>>>>> https://github.com/tesseract-ocr/tesseract/wiki/Making-Box-Files---4.0 >>>>>>>> >>>>>>>> It says that the boxes need to cover the whole line in tesseract 4. >>>>>>>> >>>>>>>> When looking inside the linked box file I can clearly see that >>>>>>>> every box covers a single character. >>>>>>>> >>>>>>>> Can anyone verify which layout for the boxes is right? >>>>>>>> >>>>>>>> -- >>>>>>>> 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/1ab1e0b0-a70a-456b-ab58-2f240a3b479f%40googlegroups.com >>>>>>>> <https://groups.google.com/d/msgid/tesseract-ocr/1ab1e0b0-a70a-456b-ab58-2f240a3b479f%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 https://groups.google.com/group/tesseract-ocr. >>>> To view this discussion on the web visit >>>> https://groups.google.com/d/msgid/tesseract-ocr/5c47b52f-fbaa-4807-ba1e-baa4ab4efdc0%40googlegroups.com >>>> <https://groups.google.com/d/msgid/tesseract-ocr/5c47b52f-fbaa-4807-ba1e-baa4ab4efdc0%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 >>> >> >> >> -- >> >> ____________________________________________________________ >> 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/b96a9303-ef9c-4635-aecd-6d8317a8c342%40googlegroups.com > <https://groups.google.com/d/msgid/tesseract-ocr/b96a9303-ef9c-4635-aecd-6d8317a8c342%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. 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