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/CAG2NduUin%2BRK_3N7e0RDzdjXABR1ONBVgF5OEyZTUP%2BDwp%2BdWQ%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
