Hello Robert
I'm struggling with this too....
Mine is failing in TessBaseAPI in the System.loadLibrary("lept")You have a line in your instructions.... Make sure ndk-build completes and says "BUILD SUCCESSFUL." What is it that the ndk makes? can I copy it in from someone else who has got it to compile? Where would it go in an Eclipse Project? This is a much bigger project than I have dealt with before and I am weak on both Eclipse and Java, and am trying to steer clear of the NDK in windows. Thanks for your kindness John On Aug 9, 1:15 am, Robert T <[email protected]> wrote: > If it worked, then the second modification is unnecessary. Glad it's > working for you now. > > No, tesseract-android-tools just implements the core Tesseract > functions. The JNI interface functions to support a lot of the > functions in Tesseract's baseapi.cpp haven't been implemented, so you > won't see corresponding methods in TessBaseAPI.java for most of them. > > If you're good with JNI you could add the missing functions yourself > in tessbaseapi.cpp. It's a little tricky though. This is what I was > getting at in another thread in this group the other day--I'm hoping > someone will implement the JNI for Tesseract's GetRegions()/ > GetWords(), which return information about where, within the image, > Tesseract recognized characters. Having those functions available > forAndroidwould be really helpful. > Robert > > On Aug 7, 1:21 pm, Mert Alptekin <[email protected]> wrote: > > > > > > > > > Thx for your help Robert. I managed to do the instructions, it worked. I > > forget to make second modification because I dont know how to do it. Is it > > really necessary? My other question is: Does this project contains all the > > functions of Tesseract engine? It seems that there are not much methods in > > this project. Or it includes only the important ones? If not, is there > > something I could do to use all functionality of the Tesseract OCR engine? > > > On Sun, Aug 7, 2011 at 10:09 AM, Robert T <[email protected]> wrote: > > > What you need to do is to set up the tesseract-android-tools project > > > as a library project inEclipse, and tell your project to refer to the > > > library project. So you'll need two projects inEclipse, whereas for > > > an ordinary app you would have just one. > > > > Step-by-step: > > > > Make sure ndk-build completes and says "BUILD SUCCESSFUL." > > > > Import the tesseract-android-tools project intoEclipse: > > > File->Import->Existing Projects Into Workspace->Choose tesseract- > > >android-tools->Finish > > > > Add tesseract-android-tools as a library project: > > > Right-click tesseract-android-tools project name->Properties->Android- > > > >check "Is Library”. > > > > Create your new app as a new project. > > > > Configure your project to use the tesseract-android-tools project as a > > > library project: Right click your new project name, do Properties- > > > >Android->Library->Add, and choose tesseract-android-tools. > > > > Create an AVD runningAndroid2.2, and with an SD card. > > > > You can now create a TessBaseAPI object in your app: > > > > File myDir = getExternalFilesDir(Environment.MEDIA_MOUNTED); > > > TessBaseAPI baseApi = new TessBaseAPI(); > > > baseApi.init(myDir, "eng"); // myDir + "/tessdata/eng.traineddata" > > > must be present > > > baseApi.setImage(myImage); > > > String recognizedText = baseApi.getUTF8Text(); // Log or otherwise > > > display this string > > > > Let me know what's missing or needs to be changed. I'll post updated > > > instructions to > > >http://rmtheis.wordpress.com/2011/08/06/using-tesseract-tools-for-and... > > > . > > > > On Aug 5, 5:35 am, Mert Alptekin <[email protected]> wrote: > > > > Ok I managed to build the library. so files are created. Could you help > > > me > > > > for creating a simple tesseract project onandroid? I'll use emulator. > > > How I > > > > can use the library? methods etc.? I wanna make an app that reads a > > > > image > > > > file and show the characters that are recognized on phone's screen. Thx > > > > foryuor help.. > > > > > On Fri, Aug 5, 2011 at 9:26 AM, Mert Alptekin <[email protected]> > > > wrote: > > > > > Could you tell me the steps for building on vbox running ubuntu? I get > > > thıs > > > > > error after I write ndk-build: > > > > > Compile thumb : lept <= fopencookie.c > > > > > /bin/sh: > > > > /mnt/share/android-ndk-r6/toolchains/arm-linux-androideabi-4.4.3/prebuilt/l > > > inux-x86/bin/arm-linux-androideabi-gcc: > > > > > not found > > > > > make: *** > > > > [/mnt/share/tesseract-android-tools-1.00/obj/local/armeabi/objs/lept//mnt/s > > > hare/tesseract-android-tools-1.00/jni/com_googlecode_leptonica_android/stdi > > > o/fopencookie.o] > > > > > Error 127 > > > > > > On Thu, Aug 4, 2011 at 10:20 PM, Robert T <[email protected] > > > >wrote: > > > > > >> I'm not sure, but try the workaround forAndroidbug #13024 by adding > > > > >> the following lines immediately before the ending </project> tag in > > > > >> your build.xml: > > > > > >> <!-- beginning of modification --> > > > > >> <path id="android.libraries.src"><path refid="project.libraries.src" > > > > >> / > > > > >> ></path> > > > > >> <path id="android.libraries.jars"><path > > > > >> refid="project.libraries.jars" /></path> > > > > >> <!-- end of modification --> > > > > > >> On Aug 4, 3:09 am, Mert Alptekin <[email protected]> wrote: > > > > >> > I gives no rule to make target for JPEGPATH/Android.mk. I do have > > > the > > > > >> >androidmakefile in libjpeg path. Maybe there's a problem with the > > > file. > > > > >> I > > > > >> > always get no rule to make target errrors. For set up a shared > > > folder on > > > > >> > vbox I think guest addition sohuld be installed. Is thtere an > > > another > > > > >> way > > > > >> > for that? > > > > > >> > On Thu, Aug 4, 2011 at 12:01 PM, Robert T <[email protected] > > > > > >> wrote: > > > > >> > > Try the instructions at > > > >http://code.google.com/p/tesseract-android-tools/source/browse/trunk/.< > > >http://code.google.com/p/tesseract-android-tools/source/browse/trunk/> > > > > >> .. > > > > >> > > . > > > > >> > > I don't recall needing to run "make"--but you do need to run > > > > >> > > "ndk- > > > > >> > > build." > > > > > >> > > It worked for me running on Ubuntu using VirtualBox. I don't > > > > >> > > think > > > you > > > > >> > > need to install the guest additions, but I found it helpful to > > > > >> > > set > > > up > > > > >> > > a Shared Folder on VirtualBox. > > > > > >> > > On Aug 4, 12:52 am, Mert Alptekin <[email protected]> wrote: > > > > >> > > > I'm using cygwin on windows 7. I get the same error in issue 4 > > > which > > > > >> is: > > > > > >> > > > make: *** No rule to make target > > > > >> > > > `//cygdrive/c/android-ndk/tesseract-android-too > > > > > >> ls-1.00/jni/com_googlecode_leptonica_android/stdio/open_memstream.c', > > > > >> > > needed > > > > >> > > > by > > > > `/cygdrive/c/android-ndk/tesseract-android-tools-1.00/obj/local/armeabi/obj > > > > >> > > s/lep > > > > t//cygdrive/c/android-ndk/tesseract-android-tools-1.00/jni/com_googlecode_l > > > > >> > > epton > > > > >> > > > ica_android/stdio/open_memstream.o'. Stop > > > > > >> > > > Do I have to use vbox on ubuntu? is there way to build it on > > > > >> windows? I > > > > >> > > dont > > > > >> > > > know much about vbox on ubuntu 11.04 I couldn't install guest > > > > >> additions, > > > > >> > > the > > > > >> > > > screen shows a weird image. Thx for your help. > > > > > >> > > > On Thu, Aug 4, 2011 at 10:14 AM, Robert T < > > > > >> [email protected]> > > > > >> > > wrote: > > > > >> > > > > I think tesseract-android-tools is the best approach. It's > > > easier, > > > > >> > > > > because you only need to code in Java--there's no need to > > > learn > > > > >> the > > > > >> > > > > JNI part. Do you have some specifics on which step of the > > > > >> instructions > > > > >> > > > > in the readme for that project is the problem? > > > > > >> > > > > On Aug 2, 10:57 pm, Mert Alptekin <[email protected]> > > > wrote: > > > > >> > > > > > Hello, I want to make anAndroidproject which make use of > > > > >> tesseract- > > > > >> > > > > > ocr library. Could someone help me how to do it? Everybody > > > gives > > > > >> the > > > > >> > > > > > same website which i cannot managed to build tesseract > > > > >> forandroid by > > > > >> > > > > > doing the steps in that site ( > > > > >>http://www.itwizard.ro/interfacing-cc- > > > > >> > > > > > libraries-via-jni-example-tesseract-163.html). The problem > > > is i > > > > >> > > cannot > > > > >> > > > > > find anAndroid.mk file for building tesseract. The ones > > > that I > > > > >> > > founnd > > > > >> > > > > > gives errors because source files are not matched or > > > > >> > > > > > reports > > > > >> errors > > > > >> > > in > > > > >> > > > > > cpp files of tesseract. Is there an easy way to build > > > tesseract > > > > >> for > > > > >> > > > > >android? And even if I managed to build will I create the > > > java > > > > >> files > > > > >> > > > > > for my project?How can I access the methods in tesseract? > > > I'm > > > > >> new to > > > > >> > > > > > makefilesand stuff. Or can someone send me a makefile? btw > > > > >> > > > > > I > > > > >> couldnt > > > > >> > > > > > use the tesjeract and tesseract-android-tools either. > > > > >> > > > > > Please > > > > >> help > > > > >> > > > > > guys. Thx > > > > >> > > > > > Note: I'm building on windows 7 32-bit with cygwin > > > > > >> > > > > -- > > > > >> > > > > You received this message because you are subscribed to the > > > Google > > > > >> > > > > Groups "tesseract-ocr" group. > > > > >> > > > > To post to this group, send email to > > > > >> [email protected] > > > > >> > > > > To unsubscribe from this group, send email to > > > > >> > > > > [email protected] > > > > >> > > > > For more options, visit this group at > > > > >> > > > >http://groups.google.com/group/tesseract-ocr?hl=en > > > > > >> > > -- > > > > >> > > You received this message because you are subscribed to the > > > Google > > > > >> > > Groups "tesseract-ocr" group. > > > > >> > > To post to this group, send email to > > > [email protected] > > > > >> > > To unsubscribe from this group, send email to > > > > >> > > [email protected] > > > > >> > > For more options, visit this group at > > > > >> > >http://groups.google.com/group/tesseract-ocr?hl=en > > > > > >> -- > > > > >> You received this message because you are subscribed to the Google > > > > >> Groups "tesseract-ocr" group. > > > > >> To post to this group, send email to [email protected] > > > > >> To unsubscribe from this group, send email to > > ... > > read more » -- You received this message because you are subscribed to the Google Groups "tesseract-ocr" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/tesseract-ocr?hl=en
