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How to optimize text extraction? |
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Dmitry 
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Joined: 21 Sep 06 Status: Offline Points: 47 |
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 Topic: How to optimize text extraction?Posted: 11 Mar 07 at 3:40AM |
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Hi to all!
I have a question. How to optimize time of executing the function GetPageText? Average time of execution is about one second per page. It's too long for me :-) How to reduce this time? if I understand correctly during the text extraction qPDF library extract also all images from page. May be it will be more faster not to extract and save to harddrive images ??? |
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marian_pascalau
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Joined: 28 Mar 06 Location: Germany Status: Offline Points: 278 |
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Posted: 11 Mar 07 at 1:48PM |
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Dmitry,
there is only one way to influence the Text extraction: the Option parameter.
As you may know there are 5 parameters:
0: contents scan
1: internally same as 0
2: contents scan, CVS output
3: CVS text collection with rendering (may read image dictionary)
4: CVS text collection with rendering and word separation.
As information for you using the 0-2 Option may bring some improvements.
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Dmitry
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Joined: 21 Sep 06 Status: Offline Points: 47 |
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Posted: 12 Mar 07 at 4:38AM |
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marian_pascalau, yes I know. But I need exactly parameter 5.
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Ingo
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Joined: 29 Oct 05 Status: Offline Points: 3529 |
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Posted: 12 Mar 07 at 5:00AM |
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". . .
qPDF library extract also all images from page . . ." Hi! The actual library version doesn't extract the images anymore. Best regards, Ingo |
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marian_pascalau
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Joined: 28 Mar 06 Location: Germany Status: Offline Points: 278 |
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Posted: 12 Mar 07 at 5:39AM |
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Hi Dmitry, Hi Ingo,
I cannot follow both of you:
Dmitry, what do you mean with parameter 5?
Ingo, is it now working as expected or this is an error?
Marian
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Ingo
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Posted: 12 Mar 07 at 7:11AM |
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Hi Marian!
It's working like accepted... I think months ago this was fixed... Here's a thread pointing in the same direction: http://www.quickpdf.org/forum/search_results_posts.asp?SearchID=20070312070924&KW=asachoi Best regards, Ingo |
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Dmitry
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Posted: 13 Mar 07 at 5:22AM |
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marian_pascalau, sorry, I meant parameter 4
Ingo, please give me just direct link to the thread. |
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marian_pascalau
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Joined: 28 Mar 06 Location: Germany Status: Offline Points: 278 |
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Posted: 13 Mar 07 at 5:27AM |
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Dmitry, if you consider a sponsorship and I will try to optimize the text extraction (Option=4) for you. Otherwise you should to use the option 2 and split text with your own program.
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Dmitry
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Posted: 13 Mar 07 at 6:28AM |
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marian_pascalau
No, thanks 
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