this link will lead you to Khmer Unicode chart On Mon, Jan 17, 2011 at 2:06 PM, Sriranga(78yrsold) <withblessi...@gmail.com > wrote:
> Viewed Khemer unicode chart (pdf) there are dependent vowels are there. It > is better to use bbtool to generate box file. please see wiki section for > tools. > > > On Mon, Jan 17, 2011 at 12:24 PM, Sriranga(78yrsold) < > withblessi...@gmail.com> wrote: > >> Is there are dependent vowel in your Khemer lang. If you have unicode >> chart better to upload >> >> >> On Mon, Jan 17, 2011 at 12:13 PM, KHEM Sochenda >> <khemsoche...@gmail.com>wrote: >> >>> I know how to do it in tesseract, but the image just to show you how the >>> glyphs should be boxed. >>> >>> I can send you the box file generate by tesseract anyway. >>> >>> Regards, >>> >>> Sochenda >>> >>> >>> On Mon, Jan 17, 2011 at 1:41 PM, Sriranga(78yrsold) < >>> withblessi...@gmail.com> wrote: >>> >>>> as per wiki instructions.- commandline has to be used to generate box >>>> file as follow - as per wiki instructions. >>>> tesseract <lang.fontname.number.tif > <lang.fontname.number> >>>> batch.nochop makebox >>>> >>>> >>>> >>>> On Mon, Jan 17, 2011 at 11:55 AM, KHEM Sochenda <khemsoche...@gmail.com >>>> > wrote: >>>> >>>>> In the image, I've done manually. >>>>> >>>>> On Mon, Jan 17, 2011 at 12:16 PM, Sriranga(78yrsold) < >>>>> withblessi...@gmail.com> wrote: >>>>> >>>>>> Which tool you have used to create boxes. Please also upload box file >>>>>> generated by you. >>>>>> >>>>>> >>>>>> On Mon, Jan 17, 2011 at 9:31 AM, KHEM Sochenda < >>>>>> khemsoche...@gmail.com> wrote: >>>>>> >>>>>>> Dear Dmitry, >>>>>>> >>>>>>> Thank you again for a very quick response. >>>>>>> >>>>>>> I am going to train tesseract for Khmer Language in which there are >>>>>>> many ligatures are in the same cases as "fi" in some latin fonts. >>>>>>> The attachment show you the example of the one line khmer sentence, >>>>>>> please count the box from left to right. You can see that some glyphs >>>>>>> are >>>>>>> above to others. The first glyph is formed of two unicode characters, >>>>>>> somehow the third glyph and the fifth glyph form a Unicode characters. >>>>>>> This >>>>>>> is the reason why I wish to give each glype its own ID and then I do a >>>>>>> post >>>>>>> processing afterward. >>>>>>> >>>>>>> Regarding the two glyphs which are overlapped each other like the >>>>>>> case of 7th glyph and the 8th glyph, how tesseract will segment these >>>>>>> glyphs? How to give the position of the boxes? >>>>>>> >>>>>>> >>>>>>> Thank you very much in advance for your response. >>>>>>> >>>>>>> >>>>>>> Best Regards, >>>>>>> >>>>>>> Sochenda >>>>>>> >>>>>>> >>>>>>> >>>>>>> On Sun, Jan 16, 2011 at 3:48 PM, Dmitry Silaev < >>>>>>> daemons2...@gmail.com> wrote: >>>>>>> >>>>>>>> Dear Sochenda, >>>>>>>> >>>>>>>> I'm not sure what's the ultimate goal of your code assignment but a >>>>>>>> formal answer to your question is "Yes". You can assign "k001" or >>>>>>>> "k002" to >>>>>>>> a bounding box in a .box file. Moreover, you can assign any UTF-8 >>>>>>>> encoded >>>>>>>> character sequence. In Tess version 3.0x (current) the only >>>>>>>> restriction is a >>>>>>>> 24 byte limit for the entire char sequence length. This also allows >>>>>>>> you to >>>>>>>> use not only an abstract code like "k001" but a meaningful character >>>>>>>> sequence from your real language (e.g. a well-known "fi" ligature in >>>>>>>> some >>>>>>>> Latin fonts) which then relieves you from using the pre- and >>>>>>>> post-processing. >>>>>>>> >>>>>>>> If you still prefer using abstract codes then pre-/post-processing >>>>>>>> can be done without tinkering with Tess's code. Since training as well >>>>>>>> as >>>>>>>> recognition result in generation of output files, you can develop a >>>>>>>> couple >>>>>>>> of file processing command-line utilities which then can be used along >>>>>>>> with >>>>>>>> calls to the Tesseract executable within shell scripts (or .bat files >>>>>>>> in >>>>>>>> Windows). >>>>>>>> >>>>>>>> For further details you definitely should study thoroughly the >>>>>>>> "TrainingTesseract3" and "ReadMe" (section "Installation Notes - >>>>>>>> Tesseract >>>>>>>> 3.00") documents ( >>>>>>>> http://code.google.com/p/tesseract-ocr/wiki/TrainingTesseract3 and >>>>>>>> http://code.google.com/p/tesseract-ocr/wiki/ReadMe). These are not >>>>>>>> quite easy searchable documents but they contain all the info you might >>>>>>>> need. >>>>>>>> >>>>>>>> Warm regards, >>>>>>>> Dmitry Silaev >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> On Sun, Jan 16, 2011 at 10:42 AM, KHEM Sochenda < >>>>>>>> khemsoche...@gmail.com> wrote: >>>>>>>> >>>>>>>>> >>>>>>>>> Dear Dmitry, >>>>>>>>> >>>>>>>>> Thank you very much for a comprehensive explanation. >>>>>>>>> Let say, to go straight, does it sound ok by assigning a code like >>>>>>>>> 'k001' or 'k002' to the glype obtain from tesseract segmentation? >>>>>>>>> >>>>>>>>> For post processing, touching the code tesseract, could you please >>>>>>>>> point me out which I files I should modify to work on. Advice me if >>>>>>>>> the last >>>>>>>>> version of tesseract will do fine. >>>>>>>>> >>>>>>>>> Thank you very much in advance for your time and response back. >>>>>>>>> >>>>>>>>> Best Regards, >>>>>>>>> >>>>>>>>> Sochenda >>>>>>>>> >>>>>>>>> >>>>>>>>> On Sat, Jan 15, 2011 at 3:05 AM, Dmitry Silaev < >>>>>>>>> daemons2...@gmail.com> wrote: >>>>>>>>> >>>>>>>>>> Chenda, >>>>>>>>>> >>>>>>>>>> In fact Tesseract doesn't care if you do training for a real >>>>>>>>>> language's letter and which language this letter belongs to. >>>>>>>>>> Simplistically >>>>>>>>>> saying Tess only saves the mapping of feature sets obtained from >>>>>>>>>> training to >>>>>>>>>> Unicode ids. This implies that during training you can assign >>>>>>>>>> virtually any >>>>>>>>>> character code to virtually any glyph (to be exact, to a connected >>>>>>>>>> component >>>>>>>>>> or to a set of connected components). >>>>>>>>>> >>>>>>>>>> If your language script is comprised by a reasonable number of >>>>>>>>>> joint character combinations then while training you can assign >>>>>>>>>> every such >>>>>>>>>> combination a predefined Unicode id (some restrictions apply). >>>>>>>>>> Later, when >>>>>>>>>> running recognition, you should do some post-processing to decode >>>>>>>>>> your >>>>>>>>>> predefined ids into real language's character sequences. >>>>>>>>>> >>>>>>>>>> For good results all this requires you to develop a training file >>>>>>>>>> pre-processor (mapping: language char combinations -> provisional >>>>>>>>>> ids) and a >>>>>>>>>> recognition result post-processor (mapping: provisional ids -> >>>>>>>>>> language char >>>>>>>>>> sequences). I'm not sure but this also may require correcting >>>>>>>>>> character >>>>>>>>>> property bit masks in the unicharset file (I don't know exactly how >>>>>>>>>> this >>>>>>>>>> information is used by Tess as I don't need it in my project). >>>>>>>>>> >>>>>>>>>> Warm regards, >>>>>>>>>> Dmitry Silaev >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> On Fri, Jan 14, 2011 at 10:25 AM, KHEM Sochenda < >>>>>>>>>> khemsoche...@gmail.com> wrote: >>>>>>>>>> >>>>>>>>>>> Dear Tesseract Team, >>>>>>>>>>> >>>>>>>>>>> In training new language step, we have to assign a unicode value >>>>>>>>>>> to each box. >>>>>>>>>>> I would like to know if a shape that is composed of *several >>>>>>>>>>> unicode characters? >>>>>>>>>>> Is there anyway to assign only an id for each box in tesseract? >>>>>>>>>>> >>>>>>>>>>> Thank you very much in advance for your response. >>>>>>>>>>> >>>>>>>>>>> Best Regards, >>>>>>>>>>> Chenda * >>>>>>>>>>> >>>>>>>>>>> 1. ** >>>>>>>>>>> >>>>>>>>>>> -- >>>>>>>>>>> You 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