Hi Teng, The options I mention aren't available in tesseract. I listed them as suggestions for extending tesseract. They haven't been implemented as far as I know.
Best regards, Age On Monday, 7 March 2016 09:56:40 UTC+1, Teng Long wrote: > > > Hi Age, I'm a newbie in OCR. > You mentioned 3 option to use tesseract, > could you please tell me how to use this 3 options? > > any command is appreciated. > Like: > tesseract sample2.jpg ouput -l eng -psm 3 > > Thank you ! > > On Monday, June 20, 2011 at 8:19:03 PM UTC+8, Age Bosma wrote: >> >> Thank you for your reply. >> >> Nice to learn that it is possible programming-wise. I should, however, >> have been more clear that I was referring to command-line functionality. >> >> Would it be an idea to extend the tesseract command-line tools to have >> it output containing block dimensions? >> >> So one option to output just the text (current behaviour): >> -------------------------------- >> Some text >> And yet again some other text >> -------------------------------- >> >> A second option to output the text marked with it's block dimensions: >> -------------------------------- >> [block:10,20,250,20] >> Some text >> [block:350,400,600,410] >> And yet again some other text >> -------------------------------- >> >> A a third option to output just all blocks: >> -------------------------------- >> [block:10,20,250,20] >> [block:350,400,600,410] >> -------------------------------- >> >> Yours, >> >> Age >> >> >> On 20-06-11 11:56, patrickq wrote: >> > You can definitely get just layout analysis before text recognition - >> > look at the FindLinesCreateBlockList() API and the BLOCK_LIST data >> > structure. You can then iterate through that structure to look at >> > blocks and rows within these blocks. Keep in mind that a sentence in >> > the image could be broken out into separate boxes altogether if you >> > have anything more complex than a simple page, so you'll have to do >> > the stiching yourself of rows in entirely different boxes, based on >> > their coordinates. There are even cases where you might get >> > "Patrick"returned as one row containing "Ptrik" and one row containing >> > "ic" - rare but happens too, especially when the text line has a slope >> > (even if very moderate). >> > >> > Patrick >> > >> > On Jun 19, 4:07 pm, Prodoc <[email protected]> wrote: >> >> Hi, >> >> >> >> In version 3 of tesseract-ocr there's a new page layout analysis >> >> module. I'm interested to learn in what way it is used and how it can >> >> be used. >> >> >> >> Does it provide additional user functionality or is it only used >> >> internally? I.e. can I query it somehow to output all recognized text >> >> areas (position and dimensions) without its actual text content? >> >> Does it have any influence on the mark-up of the text output? I.e. >> >> e.g. additional line breaks between text in case of a new paragraph. >> >> I've played with the different pagesegmode values (0-3) but it gives >> >> me the exact same output for each of them. Do these settings have >> >> anything to do with the layout analysis? >> >> >> >> If recognizing text areas is what it does but you can't output just >> >> the position and dimensions of them, it would be great to see this as >> >> a new feature. In a program like gImageReader you have to do this >> >> manually, OCRFeeder tries to do it automatically. If tesseract-ocr's >> >> analysis is more accurate, one could use that as an input for >> >> OCRFeeder again. >> >> >> >> Yours, >> >> >> >> Age Bosma >> > >> >> >> -- 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/8c929e9d-c33a-4978-a15a-1dd4f854b50b%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
