good advice but we'd like to see existing build perform port to linux well before we flip.
this may not be an impediment, just noting since everyone who reported this before had no resolution. 3.04 was fairly popular, good work there. :) the developers posted a fix to this on github a second ago, cross posting to bump up answer: https://github.com/tesseract-ocr/tesseract/issues/72 On Tue, Nov 28, 2017 at 12:47 AM, Zdenko Podobný <[email protected]> wrote: > 3.04 version is too old. nobody will check it/improve it. Please use > current tesseract version. > > Zdenko > > On Tue, Nov 28, 2017 at 12:56 AM, ppsupport1 <[email protected]> wrote: > >> >> >> We see this same error using 3.04 tesseract branch build (w/leptonica 172 >> branch). >> >> We use default build : >> ./configure >> make DESTDIR=/tmp/tesseract304/ install >> >> Then we 'strip --strip-debug *' on the bin + lib folders. install into >> /usr/local/lib using mksquashfs >> >> We do not see these errors when we run under the same code built on >> windows. >> In both cases everything works as expected, only on linux do we see these >> errors. >> >> It's not clear exactly where in the code these are emanating from. >> >> Example output: >> Total count=0 >> Min=0.00 Really=0 >> Lower quartile=0.00 >> Median=0.00, ile(0.5)=0.00 >> Upper quartile=0.00 >> Max=0.00 Really=0 >> Range=1 >> Mean= 0.00 >> SD= 0.00 >> Bottom=0, top=533, base=0, x=0 >> >> Total count=0 >> Min=0.00 Really=0 >> Lower quartile=0.00 >> Median=0.00, ile(0.5)=0.00 >> Upper quartile=0.00 >> Max=0.00 Really=0 >> Range=1 >> Mean= 0.00 >> SD= 0.00 >> Bottom=0, top=533, base=0, x=0 >> >> Library info: >> ldd /usr/local/lib/libtesseract.so >> linux-gate.so.1 (0xb77c3000) >> liblept.so.4 => /usr/local/lib/liblept.so.4 (0xb7160000) >> libpng16.so.16 => /usr/local/lib/libpng16.so.16 (0xb713a000) >> libjpeg.so.62 => /usr/local/lib/libjpeg-turbo/libjpeg.so.62 >> (0xb70c2000) >> libtiff.so.5 => /usr/local/lib/libtiff.so.5 (0xb7058000) >> liblzma.so.5 => /usr/local/lib/liblzma.so.5 (0xb703a000) >> libz.so.1 => /usr/lib/libz.so.1 (0xb7028000) >> libpthread.so.0 => /lib/libpthread.so.0 (0xb7000000) >> libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0xb6edd000) >> libm.so.6 => /lib/libm.so.6 (0xb6e9d000) >> libc.so.6 => /lib/libc.so.6 (0xb6d88000) >> libgcc_s.so.1 => /usr/lib/libgcc_s.so.1 (0xb6d71000) >> /lib/ld-linux.so.2 (0x80026000) >> ldd /usr/local/lib/liblept172.so >> linux-gate.so.1 (0xb771f000) >> libm.so.6 => /lib/libm.so.6 (0xb74d5000) >> libz.so.1 => /usr/lib/libz.so.1 (0xb74c3000) >> libpng16.so.16 => /usr/local/lib/libpng16.so.16 (0xb749d000) >> libjpeg.so.62 => /usr/local/lib/libjpeg-turbo/libjpeg.so.62 >> (0xb7425000) >> libtiff.so.5 => /usr/local/lib/libtiff.so.5 (0xb73bb000) >> libc.so.6 => /lib/libc.so.6 (0xb72a8000) >> /lib/ld-linux.so.2 (0x8002a000) >> libgcc_s.so.1 => /usr/lib/libgcc_s.so.1 (0xb7291000) >> liblzma.so.5 => /usr/local/lib/liblzma.so.5 (0xb7273000) >> libpthread.so.0 => /lib/libpthread.so.0 (0xb725c000) >> >> # via git branch 3.04 >> /tesseract-ocr/tesseract$ git describe >> 3.04.01-63-g5afface >> >> leptonica used source: leptonica-1.72.tar.gz >> >> It seems other people are now also experiencing this issue, but I don't >> see much in way of resolving it anywhere... here are some build logs from >> another party with issue: >> https://builds.magiclantern.fm/jenkins/job/QEMU-nightly-test >> s/308/consoleText >> https://builds.magiclantern.fm/jenkins/job/QEMU-nightly-test >> s/351/consoleText >> >> We're using tesseract through emgu, here is example code: >> >> public class Program >> { >> public static void Main(string[] args) >> { >> const string TESSCHAR_ALPHA = @"ABCDEFGHIJKLMNOPQRSTUVWXYZ"; >> using (var tmpimg = imgh.MakeBlank<Bgr,Byte>(150,50, >> Color.White).DrawText("HELLOWORLD! 0123456789",Color.Black,8,5,15 >> ).DrawText(t2,Color.Black,8,5,30).ToBitMap()) >> { >> double tp; >> var txtvals = GetImageText<Gray>(d, "c:\tessdata", tmpimg, out tp, >> string.Empty, Tesseract.PageSegMode.SingleChar, true, 300, 0, >> TESSCHAR_ALPHA); >> if (txtvals.Length==0) throw new Exception("unable to get text"); >> else >> { >> foreach (var v in txtvals) Console.WriteLine(v); >> } >> } >> >> public static string GetImageText<T>(DebugDelegate d, string >> tessdata, Emgu.CV.Image<T, Byte> img, out double p, string regexfilter = >> "", PageSegMode textmode = PageSegMode.SingleBlock, bool >> isremovespecialchars = false, int TargetImgWidth = 300, int TargetImgH = 0, >> string txtdomain_chars = "", string tesslang = TESSLANG_DEFAULT, bool >> isthrowmissingdata = true) where T : struct, Emgu.CV.IColor >> { >> //setd(d); >> p = 0; >> if (isthrowmissingdata && string.IsNullOrWhiteSpace(tess >> data)) >> throw new Exception("No TESSDATA folder was defined in >> call, GetImageText failed."); >> System.Text.StringBuilder text = new >> System.Text.StringBuilder(); >> using (var tessimg = GetTesserImage(img,TargetImgWi >> dth,TargetImgH)) >> using (var eng = new TesseractEngine(tessdata, tesslang, >> EngineMode.Default)) >> { >> // via: https://github.com/tesseract-o >> cr/tesseract/issues/152 >> if (!string.IsNullOrWhiteSpace(txtdomain_chars)) >> { >> eng.SetVariable(TESSENGVAR_CHARWHITELIST, >> txtdomain_chars); >> //v("whitelist: " + eng.GetVar<string>(TESSENGVAR_ >> CHARWHITELIST)); >> } >> using (var bmp = tessimg.ToBitmap()) >> using (var block = eng.Process(bmp, textmode)) >> { >> var raw = block.GetText(); >> var finaltext = GetFilteredText(raw, regexfilter, >> isremovespecialchars); >> text.Append(finaltext); >> p = block.GetMeanConfidence(); >> } >> } >> >> >> >> return text.ToString(); >> } >> >> public static string GetFilteredText(string text, bool >> isremovespecial = true, string regexp = "", bool isshrinkspaces = true) >> { >> string rem; >> var txt = isremovespecial ? RemoveSpecialCharacters(text, out >> rem) : text; >> if (isshrinkspaces) >> txt = GetTextShrink(txt); >> if (!string.IsNullOrWhiteSpace(regexp)) >> txt = Util.rxm(txt, regexp); <-- this is just a one-liner >> into System.Text.RegularExpressions.RegularExpression.Match >> return txt; >> } >> >> public static string GetTextShrink(string text, string compress2oneval = >> " ") >> { >> var ctxt = Util.rxr(text, "([" + compress2oneval + "]){2,}", >> "$1", false); <-- one-liner into RegularExpression.Replace >> return ctxt; >> >> } >> >> public static Emgu.CV.Image<TColor, Byte> >> GetTesserImage<TColor>(Emgu.CV.Image<TColor, Byte> src, >> int targetwidth = 300, int targetheight = 0, bool ispreproc = >> false) where TColor : struct, Emgu.CV.IColor >> { >> var isw = targetwidth > 0; >> var ish = targetheight > 0; >> Emgu.CV.Image<TColor, Byte> tgtimg = null; >> >> // test for disable >> if (isw || ish) >> { >> if (!isw) >> targetwidth = src.Width; >> else if (!ish) >> targetheight = src.Height; >> } >> var isresize = (src.Width < targetwidth) || (src.Height < >> targetheight); >> if (!isresize) tgtimg = src.Not(); >> >> >> if (isresize) >> { >> >> var srcratio = (double)src.Width / src.Height; >> var tgtratiow = (double)targetwidth / src.Width; >> var tgtratioh = (double)targetheight / src.Height; >> var isratw = tgtratiow > tgtratioh; >> int tw = 0, th = 0; >> if (isratw) >> { >> tw = (int)(src.Width * tgtratiow); >> th = (int)(tw / srcratio); >> } >> else >> { >> th = (int)(src.Height * tgtratioh); >> tw = (int)(th / srcratio); >> } >> tgtimg = src.Not().Resize(tw, th, >> Emgu.CV.CvEnum.Inter.Cubic); >> } >> >> if (ispreproc) >> { >> using (Emgu.CV.Image<Emgu.CV.Structure.Gray, Byte> >> graytgt = imgh.Convert<TColor, Emgu.CV.Structure.Gray>(tgtimg)) >> { >> Emgu.CV.CvInvoke.AdaptiveThreshold(graytgt, graytgt, >> 255, Emgu.CV.CvEnum.AdaptiveThresholdType.GaussianC, >> Emgu.CV.CvEnum.ThresholdType.Binary, 15, 20); >> Emgu.CV.CvInvoke.EqualizeHist(graytgt, graytgt); >> tgtimg = imgh.Convert<Emgu.CV.Structure.Gray, >> TColor>(graytgt); >> } >> >> } >> >> return tgtimg; >> } >> >> on Emgu side, Tesseract.TesseractEngine.cs has this informational >> (auto-generated) header: >> #region Assembly Tesseract-4Tgt.dll, v4.0.30319 >> // C:\Users\ppsupport1\Documents\Visual Studio >> 2010\Projects\bp\Libraries\bs\dlls\Tesseract-4Tgt.dll >> #endregion >> >> It was run with no special parameters: >> mono test.exe >> $ mono --version >> Mono JIT compiler version 4.4.2 (Stable 4.4.2.11/f72fe45 Sun Sep 18 >> 09:57:57 UTC 2016) >> Copyright (C) 2002-2014 Novell, Inc, Xamarin Inc and Contributors. >> www.mono-project.com >> TLS: __thread >> SIGSEGV: altstack >> Notifications: epoll >> Architecture: x86 >> Disabled: none >> Misc: softdebug >> LLVM: supported, not enabled. >> GC: sgen >> >> $ ldd `which mono` >> linux-gate.so.1 (0xb7734000) >> libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0xb760d000) >> libm.so.6 => /lib/libm.so.6 (0xb75bc000) >> librt.so.1 => /lib/librt.so.1 (0xb75b4000) >> libdl.so.2 => /lib/libdl.so.2 (0xb75b0000) >> libpthread.so.0 => /lib/libpthread.so.0 (0xb7599000) >> libc.so.6 => /lib/libc.so.6 (0xb7486000) >> /lib/ld-linux.so.2 (0x800b4000) >> libgcc_s.so.1 => /usr/lib/libgcc_s.so.1 (0xb746f000) >> >> >> >> Realize there is probably a simpler reproduce but since this seems to be >> information-only and no debugging was enabled and others were seeing this, >> figured I'd share some of our data. >> >> We also have many windows10 builds of same software that do no experience >> these messages. >> >> >> >> >> >> On Sunday, August 2, 2015 at 1:45:11 PM UTC-5, zdenop wrote: >>> >>> This is not standard behavior. How you use library? >>> Please provide simple example case. >>> >>> Zdenko >>> >>> On Sun, Aug 2, 2015 at 7:30 PM, Matt Hill <[email protected]> wrote: >>> >>>> Using Tesseract as a library, I get a ton of this information printed >>>> to the console: >>>> >>>> >>>> Total count=0 >>>> >>>> Min=0.00 Really=0 >>>> >>>> Lower quartile=0.00 >>>> >>>> Median=0.00, ile(0.5)=0.00 >>>> >>>> Upper quartile=0.00 >>>> >>>> Max=0.00 Really=0 >>>> >>>> Range=1 >>>> >>>> Mean= 0.00 >>>> >>>> SD= 0.00 >>>> >>>> Bottom=0, top=38, base=0, x=0 >>>> >>>> >>>> Is there any option or way to disable this? >>>> >>>> -- >>>> 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 http://groups.google.com/group/tesseract-ocr. >>>> To view this discussion on the web visit https://groups.google.com/d/ms >>>> gid/tesseract-ocr/a1e18d78-c2ca-431a-9b16-5b5cbcb13eb5%40goo >>>> glegroups.com >>>> <https://groups.google.com/d/msgid/tesseract-ocr/a1e18d78-c2ca-431a-9b16-5b5cbcb13eb5%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 [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/ms >> gid/tesseract-ocr/04e0e6d4-0ed2-48e1-90be-a335e12bc2c6%40googlegroups.com >> <https://groups.google.com/d/msgid/tesseract-ocr/04e0e6d4-0ed2-48e1-90be-a335e12bc2c6%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 a topic in the > Google Groups "tesseract-ocr" group. > To unsubscribe from this topic, visit https://groups.google.com/d/ > topic/tesseract-ocr/-K5d2euBJ_I/unsubscribe. > To unsubscribe from this group and all its topics, 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/CAJbzG8wA87y3E0LK16j9jkKJZLC6S > TWbRuuiE9wsZWRdMbP4TQ%40mail.gmail.com > <https://groups.google.com/d/msgid/tesseract-ocr/CAJbzG8wA87y3E0LK16j9jkKJZLC6STWbRuuiE9wsZWRdMbP4TQ%40mail.gmail.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. 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