You need to build tesseract and leptonica by yourself (+ needed dependencies) with MinGW. If I got it right - you have installed just runtime libraries, but for creating your app you need libraries useable for linking (and header files).
I am afraid the same you will need to do with OpenCV, as OpenCV just provides VS library which is not usable with MinGW[2],[1] I really doubt this is worthy of time - it is better is to switch to Visual Studio on Windows (and you still can use Qt Creator) [1] https://medium.com/csmadeeasy/opencv-c-installation-on-windows-with-mingw-c0fc1499f39 [2] https://github.com/opencv/opencv/releases Zdenko ut 31. 5. 2022 o 18:37 Fish Money <[email protected]> napísal(a): > I'm usuing mingw + openCV in my current project. > It has been built for work in QT IDE... > > I just need to use OCR into my project and yet, could not find any > instruction on internet. > I actually need to run the code below from QT... > > > What are my next steps to make this happen? > #include <tesseract/baseapi.h> > #include <leptonica/allheaders.h> > using namespace std; > > int main() > { > char *outText; > > tesseract::TessBaseAPI *api = new tesseract::TessBaseAPI(); > // Initialize tesseract-ocr with English, without specifying tessdata > path > if (api->Init(NULL, "eng")) { > fprintf(stderr, "Could not initialize tesseract.\n"); > exit(1); > } > > // Open input image with leptonica library > Pix *image = pixRead("/usr/src/tesseract/testing/phototest.tif"); > api->SetImage(image); > // Get OCR result > outText = api->GetUTF8Text(); > cout << ("OCR output:\n%s", outText); > > // Destroy used object and release memory > api->End(); > delete api; > delete [] outText; > pixDestroy(&image); > > return 0; > } > вторник, 31 мая 2022 г. в 22:36:55 UTC+7, zdenop: > >> I am not sure why you mentioned SW, as your screenshot indicates you have >> installed gcc (mingw?) runtime libs: >> >> [image: image.png] >> >> Do you plan to build your project with mingw? Is opencv built with mingw >> too? You can not mix VS libraries with mingw libraries... >> Also another part of your project file looks suspicious: >> "LIBS += C:\opencv\release\bin\libopencv_core455.dll" >> Do you know what are you there? Maybe you should start with a >> simple project to understand how to use external libraries... >> >> >> >> Zdenko >> >> >> ut 31. 5. 2022 o 17:00 Fish Money <[email protected]> napísal(a): >> >>> I actually stuck, because I could not execute SW and SW_GUI files. >>> My tesseract folder contains in screen shot attached. >>> >>> Dear Zdenko, >>> Is there any chance we can talk via WhatsApp? >>> Stuck so bad here in my project... >>> You gonna save my life :D >>> >>> вторник, 31 мая 2022 г. в 13:56:32 UTC+7, zdenop: >>> >>>> INCLUDEPATH += /usr/include/tesseract >>>> >>>> This does not seem correct on windows. >>>> >>>> error: tesseract/baseapi.h: No such file or directory >>>> >>>> So you have installed tesseract header files? >>>> >>>> You did not mention which compiler you used: "*.dll" indicates Visual >>>> studio, but what is in "C:\Program Files(x86)\Tesseract-OCR"? >>>> >>>> Zdenko >>>> >>>> >>>> po 30. 5. 2022 o 11:19 Fish Money <[email protected]> napísal(a): >>>> >>>>> Hello! How can i amend the pro file to make the program work? >>>>> >>>>> Googled a lot about QT and Tesseract, could not find a solution yet. >>>>> >>>>> QT += core >>>>> QT -= gui >>>>> >>>>> CONFIG += c++11 >>>>> >>>>> TARGET = openCV >>>>> CONFIG += console >>>>> CONFIG -= app_bundle >>>>> >>>>> TEMPLATE = app >>>>> INCLUDEPATH += C:\opencv\release\install\include >>>>> >>>>> LIBS += C:\opencv\release\bin\libopencv_core455.dll >>>>> LIBS += C:\opencv\release\bin\libopencv_highgui455.dll >>>>> LIBS += C:\opencv\release\bin\libopencv_imgcodecs455.dll >>>>> LIBS += C:\opencv\release\bin\libopencv_imgproc455.dll >>>>> LIBS += C:\opencv\release\bin\libopencv_calib3d455.dll >>>>> LIBS += C:\opencv\release\bin\libopencv_features2d455.dll >>>>> LIBS += C:\opencv\release\bin\libopencv_video455.dll >>>>> LIBS += C:\opencv\release\bin\libopencv_videoio455.dll >>>>> LIBS += -L"(C:\Program Files(x86)\Tesseract-OCR)" -ltesseract >>>>> >>>>> INCLUDEPATH += /usr/include/tesseract >>>>> >>>>> INCLUDEPATH += C:\Program Files(x86)\Tesseract-OCR) >>>>> >>>>> LIBS += C:\Program Files(x86)\Tesseract-OCR) >>>>> >>>>> LIBS +=-LC:\Program Files(x86)\Tesseract-OCR) >>>>> -ltesseract.dll >>>>> -llept.dll >>>>> >>>>> LIBS += -LC:\Qt\opencv_cv2\OPENCV1\build-qt\lib >>>>> -lopencv_calib3d249d >>>>> -lopencv_contrib249d >>>>> -lopencv_core249d >>>>> -lopencv_features2d249d >>>>> -lopencv_flann249d >>>>> -lopencv_gpu249d >>>>> -lopencv_highgui249d >>>>> -lopencv_imgproc249d >>>>> -lopencv_legacy249d >>>>> -lopencv_ml249d >>>>> -lopencv_nonfree249d >>>>> -lopencv_objdetect249d >>>>> -lopencv_ocl249d >>>>> -lopencv_photo249d >>>>> -lopencv_stitching249d >>>>> -lopencv_superres249d >>>>> -lopencv_ts249d >>>>> -lopencv_video249d >>>>> -lopencv_videostab249d >>>>> >>>>> SOURCES += main.cpp >>>>> >>>>> DEFINES += QT_DEPRECATED_WARNINGS >>>>> >>>>> Errors: >>>>> >>>>> >>>>> still saying D:\PROG\May\Tesseract\main.cpp:1: error: >>>>> tesseract/baseapi.h: No such file or directory >>>>> D:\PROG\May\Tesseract\main.cpp:1:10: fatal error: tesseract/baseapi.h: >>>>> No such file or directory >>>>> 1 | #include <tesseract/baseapi.h> >>>>> | ^~~~~~~~~~~~~~~~~~~~~ >>>>> >>>>> >>>>> Might be incorrect install, because SW file and SW gui could not be >>>>> executed. >>>>> >>>>> Strongly need advice! >>>>> >>>>> -- >>>>> 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 view this discussion on the web visit >>>>> https://groups.google.com/d/msgid/tesseract-ocr/923f5b9b-def7-4171-9ac6-d342a3a99dc9n%40googlegroups.com >>>>> <https://groups.google.com/d/msgid/tesseract-ocr/923f5b9b-def7-4171-9ac6-d342a3a99dc9n%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>> . >>>>> >>>> -- >>> 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 view this discussion on the web visit >>> https://groups.google.com/d/msgid/tesseract-ocr/71657717-96de-4d45-8e8c-68b9470b24f4n%40googlegroups.com >>> <https://groups.google.com/d/msgid/tesseract-ocr/71657717-96de-4d45-8e8c-68b9470b24f4n%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- > 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 view this discussion on the web visit > https://groups.google.com/d/msgid/tesseract-ocr/eb46e820-7667-4ff3-88bf-d9aecac1de20n%40googlegroups.com > <https://groups.google.com/d/msgid/tesseract-ocr/eb46e820-7667-4ff3-88bf-d9aecac1de20n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "tesseract-ocr" group. 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