Going back to psm 3, I did find that textord_tabfind_find_tables 0 helped, in that it draws only one box around the "block" of text, instead of the three that I was first getting. This is obviously the same as psm 6, but psm 6 should not run column detection, which is something that I want unless I can get tesseract to draw "blocks" vertically around the individual columns.
On Thursday, October 13, 2016 at 8:30:05 PM UTC-4, fuzzy7k wrote: > > 6 gives the exact same results as 3 (i.e. no column separation). 11 & 12 > are essentially the same in that they pull text from left to right, but > with three times as many newlines. > > On Thursday, October 13, 2016 at 8:21:09 AM UTC-4, shree wrote: >> >> Try psm 6, also 11, 12 >> >> https://github.com/tesseract-ocr/tesseract/issues/434 >> >> On 13 Oct 2016 1:13 p.m., "fuzzy7k" <kva...@gmail.com> wrote: >> >>> I tried psm 0-3 >>> >>> On Thursday, October 13, 2016 at 1:46:45 AM UTC-4, shree wrote: >>>> >>>> Which page segmentation mode (psm) did you try? >>>> >>>> On 12 Oct 2016 11:21 p.m., "fuzzy7k" <kva...@gmail.com> wrote: >>>> >>>>> I have scanned some index pages that I would like to ocr for rapid >>>>> searching. I am using tesseract from the command line. The problem is >>>>> that >>>>> tesseract ignores the whitespace between columns and merges everything >>>>> together, essentially fragmenting the contents. Using some debug output I >>>>> see that no "columns" are detected. Probably more important is that three >>>>> "blocks" are detected, one around the first and last line, and one >>>>> encompassing everything in between. Is there a way to train block >>>>> detection, or some parameters that I can tweak to optimize this? >>>>> >>>>> I have attached the image merely as an abstract representation of the >>>>> text layout to show the types of columns I am dealing with. Ideally, it >>>>> would also be nice to know if tab stops can be trained and used to >>>>> oneline >>>>> each individual topic, which I could do postprocess if I could get >>>>> tabstops >>>>> printed. >>>>> >>>>> -- >>>>> 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 tesseract-oc...@googlegroups.com. >>>>> To post to this group, send email to tesser...@googlegroups.com. >>>>> 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/5b4800f9-cead-4959-9260-52e98ee596b7%40googlegroups.com >>>>> >>>>> <https://groups.google.com/d/msgid/tesseract-ocr/5b4800f9-cead-4959-9260-52e98ee596b7%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 tesseract-oc...@googlegroups.com. >>> To post to this group, send email to tesser...@googlegroups.com. >>> 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/6a866b2d-e18b-4ef2-89ab-5e4627cd3d06%40googlegroups.com >>> >>> <https://groups.google.com/d/msgid/tesseract-ocr/6a866b2d-e18b-4ef2-89ab-5e4627cd3d06%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 tesseract-ocr+unsubscr...@googlegroups.com. To post to this group, send email to tesseract-ocr@googlegroups.com. 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/e0ab1c62-de29-4042-b622-a3a06827b057%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
