leptonica | Leptonica is an open source library containing software that is broadly useful for image processing | Computer Vision library

 by   DanBloomberg C Version: 1.83.1 License: Non-SPDX

kandi X-RAY | leptonica Summary

kandi X-RAY | leptonica Summary

leptonica is a C library typically used in Artificial Intelligence, Computer Vision applications. leptonica has no bugs, it has no vulnerabilities and it has medium support. However leptonica has a Non-SPDX License. You can download it from GitHub.

Leptonica is an open source library containing software that is broadly useful for image processing and image analysis applications. The official github repository for Leptonica is: danbloomberg/leptonica. See leptonica.org for more documentation and recent releases.
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              leptonica has a medium active ecosystem.
              It has 1449 star(s) with 366 fork(s). There are 72 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 45 open issues and 363 have been closed. On average issues are closed in 224 days. There are 1 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of leptonica is 1.83.1

            kandi-Quality Quality

              leptonica has no bugs reported.

            kandi-Security Security

              leptonica has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              leptonica has a Non-SPDX License.
              Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

            kandi-Reuse Reuse

              leptonica releases are available to install and integrate.

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            leptonica Key Features

            No Key Features are available at this moment for leptonica.

            leptonica Examples and Code Snippets

            Leptonica
            Pythondot img1Lines of Code : 8dot img1no licencesLicense : No License
            copy iconCopy
            $ wget http://www.leptonica.org/source/leptonica-1.70.tar.gz
            $ tar -zxvf leptonica-1.70.tar.gz
            $ cd leptonica-1.70/
            $ ./autobuild
            $ ./configure
            $ make
            $ sudo make install
            $ sudo ldconfig
            
              

            Community Discussions

            QUESTION

            Could not find a package configuration file provided by "Leptonica"
            Asked 2021-Jun-07 at 18:55

            I am trying to generate a visual studio 2019 C++ project from the tesseract 4.1.1 source code. Ultimately, I want to include a tesseract C++ project in my custom solution that consumes OCR results.

            When I follow these steps:

            1. Download and extract tesseract code https://github.com/tesseract-ocr/tesseract/archive/refs/tags/4.1.1.zip to "C:\tesseract" directory.
            2. Execute the following commands in a Developer Command Prompt for VS 2019:

            C:\Windows\System32>cd "C:\tesseract"
            C:\tesseract>mkdir build
            C:\tesseract>cd build
            C:\tesseract\build>cmake ..

            I receive this error:

            ...

            ANSWER

            Answered 2021-Jun-05 at 07:13

            There are several tutorial how to build tesseract on windows with cmake and VS e.g. https://bucket401.blogspot.com/2021/03/building-tesserocr-on-ms-windows-64bit.html (you can ignore end of tutorial - python module), minimalist tesseract or with clang

            Source https://stackoverflow.com/questions/67839925

            QUESTION

            Initializing tesseract API's TessBaseAPI to api pointer with C++ giving error
            Asked 2021-May-17 at 05:48

            I am using the latest Tesseract API for C++ and I followed the last answer on this post to link what is necessary. These are my includes:

            ...

            ANSWER

            Answered 2021-May-17 at 01:51

            Try compiling it with VS2019. The recent builds of Tesseract were built with VS2019.

            Source https://stackoverflow.com/questions/67560402

            QUESTION

            Tesserocr installation on Mac M1
            Asked 2021-Mar-23 at 11:07

            I have tried a lot, but still, I don't know why unable to install Tesserocr and leptonica on Mac M1. the error is here, thanks for your help.

            ...

            ANSWER

            Answered 2021-Mar-23 at 11:07

            This looks like that the leptonica-related includes are not in the includes-path of gcc. Check their location and then extend $C_INCLUDE_PATH accordingly.

            Source https://stackoverflow.com/questions/66576661

            QUESTION

            RuntimeError: Attempting to deserialize object on a CUDA device but torch.cuda.is_available() is False. GPU not detected by pytorch
            Asked 2021-Mar-21 at 16:24

            Having trouble with CUDA + Pytorch this is the error. I reinstalled CUDA and cudnn multiple times.

            Conda env is detecting GPU but its giving errors with pytorch and certain cuda libraries. I tried with Cuda 10.1 and 10.0, and cudnn version 8 and 7.6.5, Added cuda to path and everything.

            However anaconda is showing cuda tool kit 9.0 is installed, whilst I clearly installed 10.0, so I am not entirely sure what's the deal with that.

            ...

            ANSWER

            Answered 2021-Mar-20 at 10:44

            From the list of libraries, it looks like you've installed CPU only version of the Pytorch.

            Source https://stackoverflow.com/questions/66711799

            QUESTION

            How to compile tesseract baseapi.h with MinGW on window?
            Asked 2021-Feb-15 at 15:23

            So I want to use tesseract api on my project. And the problem is I don't know how to compile this baseapi.h with MinGW on window.

            I'm using this

            ...

            ANSWER

            Answered 2021-Feb-15 at 15:23

            It seems that you did not install tesseract - otherwise version.h (actually generated during tesseract build/compilation) would be present.

            Source https://stackoverflow.com/questions/66208945

            QUESTION

            Conan error: Incompatible requirements obtained in different evaluations of 'requirements'
            Asked 2021-Feb-06 at 16:51

            Greetings to my C++ heroes,

            I am trying to use Conan package manager to build dependencies of my C++ application (specifically libraries OpenCV and Tesseract). My conanfile.txt looks like this:

            ...

            ANSWER

            Answered 2021-Feb-06 at 16:51

            There is a version conflict :

            WARN: libtiff/4.1.0: requirement libwebp/1.1.0 overridden by leptonica/1.80.0 to libwebp/1.0.3

            libtiff wants libwebp/1.1.0, but leptonica asks for libwebp/1.0.3

            Conan will not solve it for you, because it could create a different behavior accord libwebp version. So it raises:

            ERROR: libtiff/4.1.0: Incompatible requirements obtained in different evaluations of 'requirements'

            You have to decide which version you want, and put it explicitly in your conanfile.txt:

            Source https://stackoverflow.com/questions/66078352

            QUESTION

            Use Tesseract in CMAKE project
            Asked 2021-Jan-30 at 17:29

            I am trying to compile a cmake project that requires Tesseract and OpenCV. Everything is being done in Ubuntu 20.04. But I have been struggling to get it compiled. I compiled Tesseract from source and have been going through several SO posts and whatever article I find online, but still no luck. I noticed that Tesseract doesn't export a .cmake file under /usr/local/lib/cmake/, so you cannot do find_package(Tesseract x.x.x REQUIRED).

            Looking around, I see that people recommend doing it this way:

            ...

            ANSWER

            Answered 2021-Jan-30 at 17:29

            So Ubuntu's libtesseract-dev package unfortunately does not bundle its CMake config files. But that doesn't mean you shouldn't look for them first.

            Source https://stackoverflow.com/questions/65970070

            QUESTION

            Tesseract OCR fails to recognize number 7
            Asked 2020-Nov-02 at 16:03

            I'm trying to analyze a png image containing two digits. Tesseract seems to have an issue detecting the number 7 (seven) in this image. It recognizes it as a 1 (one).

            my config is:

            ...

            ANSWER

            Answered 2020-Nov-02 at 16:03

            The characters in the image are too big, I guess tesseract was not trained for that.

            Resizing the image works fine

            Source https://stackoverflow.com/questions/64648632

            QUESTION

            Error compiling Leptonica (for Tesseract) on IBMi (AS400,iSeries) for Power PC
            Asked 2020-Nov-01 at 03:49

            I am trying to compile Tesseract so I can run it on IBMi 7.3 (AS400, iSeries, System/i) which has a Power PC architecture. I haven't done any C compiling with makefiles for decades so I found and am following these instruction (with thanks) and am compiling Leptonica (1.80) as a prerequisite. After some problem solving I have managed to do ./configure which seemed to work okay. Then I tried make which didn't but I read somewhere to try gmake which does quite a lot but it produces errors:

            ...

            ANSWER

            Answered 2020-Nov-01 at 03:49

            Looking at https://github.com/openssl/openssl/issues/5659#issuecomment-375022992 and Compiling pcre 8.32 on AIX 6.1 64 bit for AIX, it looks like you might need to specify OBJECT_MODE=64 and AR="ar -X64".

            Source https://stackoverflow.com/questions/64159073

            QUESTION

            Using pytesseract ocr in pythonanywhere for non english languages
            Asked 2020-Oct-01 at 09:56

            I am creating a website in pythonanywhere for OCR.In this user can upload text-images and download it in editable format. For english language it is working perfectly, but while i try to include some additional languages (south Indian languages) it showing some error messages.

            i put my additional traineddata in folder "/home/wiltomalayalamocr/mysite/langfiles" it contains "mal.traineddata" file

            and in my code

            ...

            ANSWER

            Answered 2020-Oct-01 at 09:56

            At last searching and trying of 2 day i got the solution for this

            setting an environment variable in bash console like below is not enough

            Source https://stackoverflow.com/questions/64099960

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