leptonica | Leptonica is an open source library containing software that is broadly useful for image processing | Computer Vision library
kandi X-RAY | leptonica Summary
kandi X-RAY | leptonica Summary
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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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of leptonica
leptonica Key Features
leptonica Examples and Code Snippets
$ 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
Trending Discussions on leptonica
QUESTION
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:
- Download and extract tesseract code https://github.com/tesseract-ocr/tesseract/archive/refs/tags/4.1.1.zip to "C:\tesseract" directory.
- 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 07:13There 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
QUESTION
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 01:51Try compiling it with VS2019. The recent builds of Tesseract were built with VS2019.
QUESTION
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 11:07This 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.
QUESTION
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 10:44From the list of libraries, it looks like you've installed CPU only version of the Pytorch.
QUESTION
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 15:23It seems that you did not install tesseract - otherwise version.h
(actually generated during tesseract build/compilation) would be present.
QUESTION
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 16:51There 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
:
QUESTION
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 17:29So 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.
QUESTION
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 16:03The characters in the image are too big, I guess tesseract was not trained for that.
Resizing the image works fine
QUESTION
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 03:49Looking 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"
.
QUESTION
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 09:56At 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
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