I have modified the code as follow:
CTemp::CTemp()
{
m_Tess.Init(_T("C:\\tessdata-master\\"), _T("eng"),
tesseract::OcrEngineMode::OEM_TESSERACT_LSTM_COMBINED);
}
CTemp::~CTemp()
{
m_Tess.Clear();
m_Tess.End();
m_Tess.ClearPersistentCache();
}
BOOL CTemp::GetTextFromImage(CString sFileName)
{
PIX* pix = NULL;
do
{
// read image
PIX* pix = pixRead(sFileName);
if (! pix)
{
m_sError.Format(_T("Cannot open input file: %s."), sFileName);
break;
}
// recognize
m_Tess.SetImage(pix);
}
while (FALSE);
// cleanup
pixDestroy(&pix);
return m_sError.IsEmpty();
}
The same result, (only 10MB less).
On Monday, June 24, 2019 at 8:40:26 PM UTC+3, zdenop wrote:
>
> I am sorry I miss understand your code: I was expecting that in
> do/while loop you are iterating over file list. IMO its inefficient to
> initialize tesseract for each image.
>
>
> Zdenko
>
> po 24. 6. 2019 o 11:06 _ Flaviu <[email protected] <javascript:>>
> napísal(a):
> >
> > I think there no loop there, it is just an do/while(FALSE), those Clear
> and pixDestroy is called every time when an images are read.
> >
> > On Monday, June 24, 2019 at 11:52:11 AM UTC+3, zdenop wrote:
> >>
> >> And also pixDestroy should be in loop too. You just create new objects
> and you did not destroy them, so why you wander you run out of memory?
> >>
> >>
> >> Zdenko
> >>
> >>
> >> po 24. 6. 2019 o 10:35 Zdenko Podobny <[email protected]> napísal(a):
> >>>
> >>> IMHO you should call Clear in loop with SetImage :
> https://github.com/tesseract-ocr/tesseract/blob/master/src/api/baseapi.h#L675
> >>>
> >>> Zdenko
> >>>
> >>>
> >>> po 24. 6. 2019 o 10:25 _ Flaviu <[email protected]> napísal(a):
> >>>>
> >>>> I come in just in time: I have developed a little test application,
> which have debug and release, source code, and exe.
> >>>>
> >>>> Here is the code that get text from images:
> >>>>
> >>>> BOOL CTemp::GetTextFromImage(CString sFileName)
> >>>> {
> >>>> PIX* pix = NULL;
> >>>> tesseract::TessBaseAPI Tess;
> >>>>
> >>>> do
> >>>> {
> >>>> if (Tess.Init(_T("C:\\tessdata-master\\"), _T("eng"),
> tesseract::OcrEngineMode::OEM_TESSERACT_LSTM_COMBINED))
> >>>> {
> >>>> m_sError.Format(_T("OCRTesseract: Could not initialize tesseract."));
> >>>> break;
> >>>> }
> >>>> // read image
> >>>> PIX* pix = pixRead(sFileName);
> >>>> if (! pix)
> >>>> {
> >>>> m_sError.Format(_T("Cannot open input file: %s."), sFileName);
> >>>> break;
> >>>> }
> >>>> // recognize
> >>>> Tess.SetImage(pix);
> >>>> }
> >>>> while (FALSE);
> >>>>
> >>>> // cleanup
> >>>> pixDestroy(&pix);
> >>>> Tess.Clear();
> >>>> Tess.End();
> >>>>
> >>>> return m_sError.IsEmpty();
> >>>> }
> >>>>
> >>>> Of course, you have put tessdata-master folder in C:
> >>>>
> >>>> The test app has an menu item: File->Read images, and from that
> CFileDialog you can select multiple image file, and you can see the state
> of reading in the statusbar.
> >>>>
> >>>> If you intend to run this project on you machine, you have modify
> yourself the paths in project settings. No big deal. The project is a
> VS2017 project, MFC.
> >>>>
> >>>> I run this app on few Win10 64bit machines, with the same results. I
> have loaded for my tests 14 images, and after all image has been converted,
> the test app took 466 MB, and after these 14 images has been loaded again,
> the app took 883 MB, after I loaded again, 1307 MB, and so on ... the only
> way to free RAM is to stop the app and start again ! Sad :(
> >>>>
> >>>> Here is the link for attachements:
> https://1drv.ms/f/s!AtSPCxnvttzegw6QHz8RAOjJq8fe
> >>>>
> >>>>
> >>>> On Monday, June 24, 2019 at 10:53:40 AM UTC+3, zdenop wrote:
> >>>>>
> >>>>> AFAIR: there were always problem with windows tesseract debug build
> (MSVC). Release version works fine, but debug failed. So it would be great
> if somebody experienced with windows debugging have a look at this.
> >>>>>
> >>>>> Zdenko
> >>>>>
> >>>>>
> >>>>> ne 23. 6. 2019 o 20:29 _ Flaviu <[email protected]> napísal(a):
> >>>>>>
> >>>>>> Ok, good idea, I am working right now on a simple testing app that
> prove the issue. I will come back as soon as I can.
> >>>>>>
> >>>>>> On Thursday, June 20, 2019 at 2:02:12 PM UTC+3, _ Flaviu wrote:
> >>>>>>>
> >>>>>>> I am using tesseract 4 on a VC++ (MFC) app, to read text from
> images (A4 sizes). I noticed that while I using this app on several PCs
> (Win10 64 bit, *GB RAM), the RAM occupied by my app (that use tesseract) is
> increasing on and on. If I read 14 images, my app eat 470 MB, and if I
> didn't close the app and read again all these 14 images, the RAM eaten by
> my app is increasing until ~800MB, and if continue to read the same images,
> the RAM is increasing on an on. Why is this happen ?
> >>>>>>>
> >>>>>>> Here is the code that I am using for tesseract:
> >>>>>>>
> >>>>>>> BOOL CMyClass::GetTextFromImage()
> >>>>>>> {
> >>>>>>> PIX* pix = NULL;
> >>>>>>> tesseract::TessBaseAPI* pTess = new tesseract::TessBaseAPI;
> >>>>>>>
> >>>>>>> do
> >>>>>>> {
> >>>>>>> if (pTess->Init(...))
> >>>>>>> {
> >>>>>>> m_sError.Format(_T("OCRTesseract: Could not initialize
> tesseract."));
> >>>>>>> break;
> >>>>>>> }
> >>>>>>> // setup
> >>>>>>> // read image
> >>>>>>> PIX* pix = pixRead(m_sFileName);
> >>>>>>> if (! pix)
> >>>>>>> {
> >>>>>>> break;
> >>>>>>> }
> >>>>>>> // recognize
> >>>>>>> pTess->SetImage(pix);
> >>>>>>> }
> >>>>>>> while (FALSE);
> >>>>>>>
> >>>>>>> // cleanup
> >>>>>>> // pTess->Clear();
> >>>>>>> // pTess->End();
> >>>>>>> delete pTess;
> >>>>>>> pTess = NULL;
> >>>>>>> pixDestroy(&pix);
> >>>>>>>
> >>>>>>> return TRUE;
> >>>>>>> }
> >>>>>>>
> >>>>>>>
> >>>>>>> Is there anything wrong here ? Why is increasing RAM while I am
> using tesseract ?
> >>>>>>>
> >>>>>> --
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