If you want to use tesseract you need to have tesseract library. And tesseract need leptonica[1]
Error message is clear - compiler can not find these libraries - you need to adjust path in project file according location of that libraries. [1] https://github.com/tesseract-ocr/tesseract#dependencies-and-licenses Zdenko On Tue, Nov 3, 2015 at 4:03 AM, Liu Paulson <paulson...@gmail.com> wrote: > > <https://lh3.googleusercontent.com/--C0XSGg3qBc/VjgjcEezoBI/AAAAAAAAAB0/iTOFp2pZ1q0/s1600/Unnamed%2BQQ%2BScreenshot20151103110128.png> > I have download the project qt-box-editor , the .pro file is : > > > RESOURCES = resources/application.qrc \ > > > resources/QBE-GNOME.qrc \ > > > resources/QBE-Faenza.qrc \ > > > resources/QBE-Oxygen.qrc \ > > > resources/QBE-Tango.qrc > > > > > LIBS += -llept -ltesseract > > > > > win32: { > > > DESTDIR = ./win32 > > > CONFIG += release embed_manifest_exe > > > TMAKE_CXXFLAGS += -DQT_NODLL > > > TMAKE_CXXFLAGS += -fno-exceptions -fno-rtti -static > > > #QTPLUGIN += qsvg # image formats > > > DEFINES += WINDOWS > > > #QMAKE_LFLAGS.gcc += -static-libgcc # -static > > > RC_FILE = resources/win.rc > > > INCLUDEPATH += $$PWD/win32-external/include/ > > > LIBS += -lws2_32 -L$$PWD/win32-external/lib > > > } > > > > > unix: { > > > greaterThan(QT_MAJOR_VERSION, 5) { > > > message(Qt $$[QT_VERSION] was detected.) > > > QT += widgets > > > INCLUDEPATH += -L/opt/include/ > > > LIBS += -L/opt/lib > > > } > > > } > > > But when I bulid the project, error coming: > > > <https://lh3.googleusercontent.com/--C0XSGg3qBc/VjgjcEezoBI/AAAAAAAAAB0/iTOFp2pZ1q0/s1600/Unnamed%2BQQ%2BScreenshot20151103110128.png> > cannot find -llept > cannot find -ltesseract > ld returned 1 exit status > > Which library should I download ? How can I connect the library in this > project? > > 在 2015年11月2日星期一 UTC+8下午3:39:25，zdenop写道： >> >> have a look at qt-box-editor[1] (even I did not test it with for a long >> time, but there should be support for QT5) >> >> [1] https://github.com/zdenop/qt-box-editor >> >> Zdenko >> >> On Mon, Nov 2, 2015 at 5:44 AM, Liu Paulson <pauls...@gmail.com> wrote: >> >>> I download the tesseract-ocr library from the >>> https://code.google.com/p/tesseract-ocr/downloads/list >>> tesseract-3.02.02-win32-lib-include-dirs.zip >>> >>> I use the Qt platform to bulid the program: >>> Add the below code to the project.pro file: >>> >>> INCLUDEPATH += ./include/tesseract/ \ >>> >>> ./include/leptonica/ \ >>> >>> ./include >>> >>> >>> LIBS+= ./lib/libtesseract302.dll \ >>> >>> ./lib/libtesseract302.lib >>> >>> >>> Add the below code to the project.h file: >>> >>> #include <tesseract/baseapi.h> >>> >>> >>> Add the below code to the project.cpp file: >>> >>> const char* filename = "./number.jpg"; >>> >>> const char* lang = "eng"; >>> >>> >>> tesseract::TessBaseAPI *tess = new tesseract::TessBaseAPI(); >>> >>> >>> //////////////////////////////////////////////////////////////////////////////////////////////// >>> >>> But when I compile the project , the error coming like: >>> >>> undefined reference to `tesseract::TessBaseAPI::TessBaseAPI() >>> >>> >>> >>> How can I solve the problem? Anyone can tell me how to connect the library >>> of the tesseract_ocr in the Qt5.5 ? Thank you very much. >>> >>> >>> >>> -- >>> 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 tesseract-oc...@googlegroups.com. >>> To post to this group, send email to tesser...@googlegroups.com. >>> Visit this group at http://groups.google.com/group/tesseract-ocr. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/tesseract-ocr/6793cbaf-3cd4-4cd6-a791-00e14524855d%40googlegroups.com >>> <https://groups.google.com/d/msgid/tesseract-ocr/6793cbaf-3cd4-4cd6-a791-00e14524855d%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 tesseract-ocr+unsubscr...@googlegroups.com. > To post to this group, send email to tesseract-ocr@googlegroups.com. > Visit this group at http://groups.google.com/group/tesseract-ocr. > To view this discussion on the web visit > https://groups.google.com/d/msgid/tesseract-ocr/8a07170a-c59a-4677-989c-24ed60f509df%40googlegroups.com > <https://groups.google.com/d/msgid/tesseract-ocr/8a07170a-c59a-4677-989c-24ed60f509df%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 tesseract-ocr+unsubscr...@googlegroups.com. To post to this group, send email to tesseract-ocr@googlegroups.com. Visit this group at http://groups.google.com/group/tesseract-ocr. To view this discussion on the web visit https://groups.google.com/d/msgid/tesseract-ocr/CAJbzG8xEc0Bkf1ARAwhtNRL6SZGrPU0MLwLJE85AfOHKTPBhXw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
