Yes, that's what I was describing in the body of my question:
I added these lines* to Tesseract CMakeLists.txt*
*add_subdirectory(${CMAKE_SOURCE_DIR}/../leptonica) *
*add_subdirectory(${CMAKE_SOURCE_DIR}/../leptonica/build) *
*find_package(Leptonica ${MINIMUM_LEPTONICA_VERSION} REQUIRED CONFIG) *
Inside CMakeLists.txt I see the lines:
if(NOT EXISTS ${PROJECT_SOURCE_DIR}/.cppan)
if (NOT Leptonica_DIR AND NOT MSVC)
find_package(PkgConfig REQUIRED)
pkg_check_modules(Leptonica REQUIRED
lept>=${MINIMUM_LEPTONICA_VERSION})
link_directories(${Leptonica_LIBRARY_DIRS})
else()
find_package(Leptonica ${MINIMUM_LEPTONICA_VERSION} REQUIRED CONFIG)
endif()
else()
if (STATIC)
set(CPPAN_BUILD_SHARED_LIBS 0)
else()
set(CPPAN_BUILD_SHARED_LIBS 1)
endif()
add_subdirectory(.cppan)
endif()
I'm trying to build without using cppan and pkg-config. I never used these
tools before, and I know they will create more problems, especially when
cross-compiling.
I'm trying to just use the existing CMake* find-package* function. It
should work since its already part of the if-else block.
* find_package(Leptonica ${MINIMUM_LEPTONICA_VERSION} REQUIRED
CONFIG)*
So I commented the entire block above out and included just the
*find_package* line.
Again, there are no instructions anywhere, and I'm not trained to use
CMake, cppan, or pkg-config in school.
I need to know the exact thing I need to add to the CMakeLists.txt for
Tesseract in order to build with Leptonica, (Or without if that's even
possible) so that I can use it in open-cv.
I've been reading cmake documentation https://cmake.org/cmake-tutorial/
<https://cmake.org/cmake-tutorial/> but it doesn't help me with these two
specific programs.
There must be only 1 or 2 lines I need to add in order to compile it, and
since creators of Tesseract designed it to require Leptonica, they must
know what it is missing.,
Thank you,
On Wednesday, October 3, 2018 at 12:37:50 PM UTC-7, shree wrote:
>
> +Egor Pugin <javascript:>
>
> Have you checked
> https://github.com/tesseract-ocr/tesseract/blob/master/CMakeLists.txt
>
> On Wed, Oct 3, 2018 at 3:28 PM Mich Po <dmitr...@gmail.com <javascript:>>
> wrote:
>
>> I'm trying to build OpenCV with the Tesseract OCR module to use on a
>> raspberry pi.
>>
>> There is very little information online on how to build this, and what is
>> available is very incomplete.
>>
>> I'm building using Visual Studio 2017 on windows 10 using the VisualGDB
>> plugin for cross compilation.
>>
>>
>> I tried downloading and building Tesseract I cloned
>> https://github.com/tesseract-ocr/tess...
>> <https://github.com/tesseract-ocr/tesseract>
>>
>> But there is no *include* folder anywhere int he sources. There is an
>> src folder that contains headers and source files, but no include folder
>> anywhere.
>>
>> Do I need to build tesseract first? And when its built, it creates lib
>> and include files?
>>
>> I tried to build tesseract, but it required leptonica. I was able to
>> build leptonica. but I cannot manage to include it in the Tesseract cmake.
>>
>> I added the lines
>>
>> *add_subdirectory(${CMAKE_SOURCE_DIR}/../leptonica) *
>>
>> *add_subdirectory(${CMAKE_SOURCE_DIR}/../leptonica/build) *
>>
>> *find_package(Leptonica ${MINIMUM_LEPTONICA_VERSION} REQUIRED CONFIG) *
>>
>> But I'm getting errors:
>>
>> *add_subdirectory not given a binary directory but the given source
>> C:\opencv\tesseract\CMakeLists.txt *
>>
>> *Could not find a package configuration file provided by "Leptonica"
>> C:\opencv\tesseract\CMakeLists.txt *
>>
>>
>>
>> My directory structure is as follows:
>>
>>
>> Tesseract git repository located in *C:\opencv\tesseract*
>>
>> Tesseract build directory *C:\opencv\tesseract\build*
>>
>> Leptonica repository located in *C:\opencv\leptonica*
>>
>> Leptonica build directory in *C:\opencv\leptonica\build*
>> (contains LeptonicaConfig.cmake,
>>
>> Leptonica library files,
>> (libleptonica.so, libleptonica.so.1.77.0, libleptonica.so.5.3.0) are in
>> *C:\opencv\leptonica\build\src*
>>
>>
>>
>> Can anyone please help me figure out what lines I need to add to the
>> CMakeLists.txt for Tesseract or Leptonica in order to get Tesseract to
>> build correctly?
>>
>> Or any other files I need to edit?
>>
>>
>> Do I need to install anything else to build? I'm trying to avoid using
>> pkg-config or anything else that will make it more complicated.
>>
>>
>> Thank you,
>>
>>
>>
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>
> --
>
> ____________________________________________________________
> भजन - कीर्तन - आरती @ http://bhajans.ramparivar.com
>
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