Re: [tesseract-ocr] Tesseract to detect numbers with opencv (c++) and cmake on a raspberry pi

[Zdenko Podobny]

Just goole for help. There are plenty examples. e.g.
https://stackoverflow.com/questions/24570916/add-external-libraries-to-cmakelist-txt-c

Zdenko


st 26. 9. 2018 o 14:38 Adam Richards  napísal(a):

> Hi Zdenko,
>
> Sorry, I'm just still unsure how exactly to get this working? What should
> I be doing to set my Tesseract_INCLUDE_DIRS and Tesseract_LIBRARIES
> manually...
>
> Any further help you could provide would be appreciated,
>
> thanks,
> Adam
>
> On Monday, September 24, 2018 at 4:46:05 PM UTC+10, zdenop wrote:
>>
>> This means that your tesseract packages were build with autotools and
>> they did not includes cmake support.
>> So you need to set your Tesseract_INCLUDE_DIRS and Tesseract_LIBRARIES
>> manually...
>>
>> Zdenko
>>
>>
>> po 24. 9. 2018 o 0:24 Adam Richards  napísal(a):
>>
>>> I did a search on the Pi and it couldn't find A TesseractConfig.cmake
>>> file anywhere.
>>>
>>> Where should it be exactly?
>>>
>>> Should it automatocally come with Tesseract or do I need to download or
>>> add it?
>>>
>>> --
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>>> .
>>> For more options, visit https://groups.google.com/d/optout.
>>>
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Re: [tesseract-ocr] Tesseract to detect numbers with opencv (c++) and cmake on a raspberry pi

[Adam Richards]

Hi Zdenko,

Sorry, I'm just still unsure how exactly to get this working? What should I 
be doing to set my Tesseract_INCLUDE_DIRS and Tesseract_LIBRARIES 
manually...

Any further help you could provide would be appreciated,

thanks,
Adam

On Monday, September 24, 2018 at 4:46:05 PM UTC+10, zdenop wrote:
>
> This means that your tesseract packages were build with autotools and they 
> did not includes cmake support.
> So you need to set your Tesseract_INCLUDE_DIRS and Tesseract_LIBRARIES 
> manually...
>
> Zdenko
>
>
> po 24. 9. 2018 o 0:24 Adam Richards > 
> napísal(a):
>
>> I did a search on the Pi and it couldn't find A TesseractConfig.cmake 
>> file anywhere. 
>>
>> Where should it be exactly?
>>
>> Should it automatocally come with Tesseract or do I need to download or 
>> add it?
>>
>> -- 
>> You received this message because you are subscribed to the Google Groups 
>> "tesseract-ocr" group.
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>> .
>> Visit this group at https://groups.google.com/group/tesseract-ocr.
>> To view this discussion on the web visit 
>> https://groups.google.com/d/msgid/tesseract-ocr/64319e95-3c44-49bb-8e8e-8650a17f8a8a%40googlegroups.com
>> .
>> For more options, visit https://groups.google.com/d/optout.
>>
>

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Re: [tesseract-ocr] Tesseract to detect numbers with opencv (c++) and cmake on a raspberry pi

[Adam Richards]

Thank you Zdenko,

How exactly would I do this? Is it just entering the directory directly into 
the cmakelists.txt file?

Is there an easy way to find the location of these directories?

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Re: [tesseract-ocr] Tesseract to detect numbers with opencv (c++) and cmake on a raspberry pi

[Zdenko Podobny]

This means that your tesseract packages were build with autotools and they
did not includes cmake support.
So you need to set your Tesseract_INCLUDE_DIRS and Tesseract_LIBRARIES
manually...

Zdenko


po 24. 9. 2018 o 0:24 Adam Richards  napísal(a):

> I did a search on the Pi and it couldn't find A TesseractConfig.cmake file
> anywhere.
>
> Where should it be exactly?
>
> Should it automatocally come with Tesseract or do I need to download or
> add it?
>
> --
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> .
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Re: [tesseract-ocr] Tesseract to detect numbers with opencv (c++) and cmake on a raspberry pi

[Adam Richards]

I did a search on the Pi and it couldn't find A TesseractConfig.cmake file 
anywhere. 

Where should it be exactly?

Should it automatocally come with Tesseract or do I need to download or add it?

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Re: [tesseract-ocr] Tesseract to detect numbers with opencv (c++) and cmake on a raspberry pi

[Zdenko Podobny]

Can you check if TesseractConfig.cmake macros are included in these
packages?

Zdenko


ne 23. 9. 2018 o 2:06 Adam Richards  napísal(a):

> Pretty sure I installed with just these commands:
>
> sudo apt install tesseract-ocr
> sudo apt install libtesseract-dev
>
> When I check the tesseract -v I get this:
> tesseract 3.04.01
>  leptonica-1.74.1
>   libgif 5.1.4 : libjpeg 6b (libjpeg-turbo 1.5.1) : libpng 1.6.28 :
> libtiff 4.0.8 : zlib 1.2.8 : libwebp 0.5.2 : libopenjp2 2.1.2
>
>
> On Saturday, September 22, 2018 at 11:48:13 PM UTC+10, zdenop wrote:
>>
>> How did you install tesseract?
>>
>> Zdenko
>>
>>
>> so 22. 9. 2018 o 15:23 Adam Richards  napísal(a):
>>
>>> I have managed to run the basic API example from the command line,
>>> however I am now trying to incorporate it into my project.
>>> I have added these lines to my CMakeLists.txt file:
>>>
>>> find_package( Tesseract 3.04.01 REQUIRED )
>>> include_directories(${Tesseract_INCLUDE_DIRS})
>>> target_link_libraries(image ${Tesseract_LIBRARIES})
>>>
>>> And when I try and make it I get this error:
>>>
>>> "CMake Error at CMakeLists.txt:7 (find_package):
>>>   Could not find a package configuration file provided by "Tesseract"
>>> with
>>>   any of the following names:
>>>
>>> TesseractConfig.cmake
>>> tesseract-config.cmake
>>>
>>>   Add the installation prefix of "Tesseract" to CMAKE_PREFIX_PATH or set
>>>   "Tesseract_DIR" to a directory containing one of the above files.  If
>>>   "Tesseract" provides a separate development package or SDK, be sure it
>>> has
>>>   been installed."
>>>
>>> Should there be something else I have to install or do to make this work?
>>>
>>> On Saturday, September 22, 2018 at 5:05:07 PM UTC+10, zdenop wrote:

 Have a look at wiki APIExample
 .
 And tesseract / tesseractmain.cpp
 
 is just example how to use tesseract library... Tesseract is also possible
 to build with cmake, so all you need is just to have a look at the code...

 Zdenko


 so 22. 9. 2018 o 8:49 Adam Richards  napísal(a):

> Hi I want to use Tesseract to detect numbers in a sudoku puzzle. I
> already have all my opencv c++ code that will produce a Mat for every cell
> with a number in it, to run this I am using Cmake to generate the code.
>
> I was just wondering how I can install, setup and use tesseract to
> read the numbers from each cell within this c++ code, as I can only work
> out how to run it from the command line.
>
> --
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> 
> .
> For more options, visit https://groups.google.com/d/optout.
>
 --
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Re: [tesseract-ocr] Tesseract to detect numbers with opencv (c++) and cmake on a raspberry pi

[Adam Richards]

Pretty sure I installed with just these commands:

sudo apt install tesseract-ocr
sudo apt install libtesseract-dev

When I check the tesseract -v I get this:
tesseract 3.04.01
 leptonica-1.74.1
  libgif 5.1.4 : libjpeg 6b (libjpeg-turbo 1.5.1) : libpng 1.6.28 : libtiff 
4.0.8 : zlib 1.2.8 : libwebp 0.5.2 : libopenjp2 2.1.2


On Saturday, September 22, 2018 at 11:48:13 PM UTC+10, zdenop wrote:
>
> How did you install tesseract?
>
> Zdenko
>
>
> so 22. 9. 2018 o 15:23 Adam Richards > 
> napísal(a):
>
>> I have managed to run the basic API example from the command line, 
>> however I am now trying to incorporate it into my project. 
>> I have added these lines to my CMakeLists.txt file:
>>
>> find_package( Tesseract 3.04.01 REQUIRED )
>> include_directories(${Tesseract_INCLUDE_DIRS})
>> target_link_libraries(image ${Tesseract_LIBRARIES})
>>
>> And when I try and make it I get this error:
>>
>> "CMake Error at CMakeLists.txt:7 (find_package):
>>   Could not find a package configuration file provided by "Tesseract" with
>>   any of the following names:
>>
>> TesseractConfig.cmake
>> tesseract-config.cmake
>>
>>   Add the installation prefix of "Tesseract" to CMAKE_PREFIX_PATH or set
>>   "Tesseract_DIR" to a directory containing one of the above files.  If
>>   "Tesseract" provides a separate development package or SDK, be sure it 
>> has
>>   been installed."
>>
>> Should there be something else I have to install or do to make this work?
>>
>> On Saturday, September 22, 2018 at 5:05:07 PM UTC+10, zdenop wrote:
>>>
>>> Have a look at wiki APIExample 
>>> .
>>> And tesseract / tesseractmain.cpp 
>>> 
>>>  
>>> is just example how to use tesseract library... Tesseract is also possible 
>>> to build with cmake, so all you need is just to have a look at the code...
>>>
>>> Zdenko
>>>
>>>
>>> so 22. 9. 2018 o 8:49 Adam Richards  napísal(a):
>>>
 Hi I want to use Tesseract to detect numbers in a sudoku puzzle. I 
 already have all my opencv c++ code that will produce a Mat for every cell 
 with a number in it, to run this I am using Cmake to generate the code. 

 I was just wondering how I can install, setup and use tesseract to read 
 the numbers from each cell within this c++ code, as I can only work out 
 how 
 to run it from the command line.

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 .
 For more options, visit https://groups.google.com/d/optout.

>>> -- 
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>>  
>> 
>> .
>> For more options, visit https://groups.google.com/d/optout.
>>
>

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Re: [tesseract-ocr] Tesseract to detect numbers with opencv (c++) and cmake on a raspberry pi

[Zdenko Podobny]

How did you install tesseract?

Zdenko


so 22. 9. 2018 o 15:23 Adam Richards  napísal(a):

> I have managed to run the basic API example from the command line, however
> I am now trying to incorporate it into my project.
> I have added these lines to my CMakeLists.txt file:
>
> find_package( Tesseract 3.04.01 REQUIRED )
> include_directories(${Tesseract_INCLUDE_DIRS})
> target_link_libraries(image ${Tesseract_LIBRARIES})
>
> And when I try and make it I get this error:
>
> "CMake Error at CMakeLists.txt:7 (find_package):
>   Could not find a package configuration file provided by "Tesseract" with
>   any of the following names:
>
> TesseractConfig.cmake
> tesseract-config.cmake
>
>   Add the installation prefix of "Tesseract" to CMAKE_PREFIX_PATH or set
>   "Tesseract_DIR" to a directory containing one of the above files.  If
>   "Tesseract" provides a separate development package or SDK, be sure it
> has
>   been installed."
>
> Should there be something else I have to install or do to make this work?
>
> On Saturday, September 22, 2018 at 5:05:07 PM UTC+10, zdenop wrote:
>>
>> Have a look at wiki APIExample
>> .
>> And tesseract / tesseractmain.cpp
>> 
>> is just example how to use tesseract library... Tesseract is also possible
>> to build with cmake, so all you need is just to have a look at the code...
>>
>> Zdenko
>>
>>
>> so 22. 9. 2018 o 8:49 Adam Richards  napísal(a):
>>
>>> Hi I want to use Tesseract to detect numbers in a sudoku puzzle. I
>>> already have all my opencv c++ code that will produce a Mat for every cell
>>> with a number in it, to run this I am using Cmake to generate the code.
>>>
>>> I was just wondering how I can install, setup and use tesseract to read
>>> the numbers from each cell within this c++ code, as I can only work out how
>>> to run it from the command line.
>>>
>>> --
>>> 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.
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>>> https://groups.google.com/d/msgid/tesseract-ocr/93a0d413-f0a2-41c4-8944-67c61b0a784f%40googlegroups.com
>>> 
>>> .
>>> For more options, visit https://groups.google.com/d/optout.
>>>
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Re: [tesseract-ocr] Tesseract to detect numbers with opencv (c++) and cmake on a raspberry pi

[Adam Richards]

Thank you Zdenko,

I am not overly familiar with how cmake works in compiling everything, I 
followed through these 
steps: https://docs.opencv.org/master/d7/d9f/tutorial_linux_install.html 
and this tutorial: https://www.youtube.com/watch?v=LglRKc2nGeY   to get 
everything working with opencv. However I am not exactly sure how to 
integrate in Tesseract with the same cmake commands.
Is there any useful tutorials or examples on how to use Tesseract with 
cmake?



On Saturday, September 22, 2018 at 5:05:07 PM UTC+10, zdenop wrote:
>
> Have a look at wiki APIExample 
> .
> And tesseract / tesseractmain.cpp 
> 
>  
> is just example how to use tesseract library... Tesseract is also possible 
> to build with cmake, so all you need is just to have a look at the code...
>
> Zdenko
>
>
> so 22. 9. 2018 o 8:49 Adam Richards > 
> napísal(a):
>
>> Hi I want to use Tesseract to detect numbers in a sudoku puzzle. I 
>> already have all my opencv c++ code that will produce a Mat for every cell 
>> with a number in it, to run this I am using Cmake to generate the code. 
>>
>> I was just wondering how I can install, setup and use tesseract to read 
>> the numbers from each cell within this c++ code, as I can only work out how 
>> to run it from the command line.
>>
>> -- 
>> 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 https://groups.google.com/group/tesseract-ocr.
>> To view this discussion on the web visit 
>> https://groups.google.com/d/msgid/tesseract-ocr/93a0d413-f0a2-41c4-8944-67c61b0a784f%40googlegroups.com
>>  
>> 
>> .
>> For more options, visit https://groups.google.com/d/optout.
>>
>

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Re: [tesseract-ocr] Tesseract to detect numbers with opencv (c++) and cmake on a raspberry pi

[Adam Richards]

I have managed to run the basic API example from the command line, however 
I am now trying to incorporate it into my project. 
I have added these lines to my CMakeLists.txt file:

find_package( Tesseract 3.04.01 REQUIRED )
include_directories(${Tesseract_INCLUDE_DIRS})
target_link_libraries(image ${Tesseract_LIBRARIES})

And when I try and make it I get this error:

"CMake Error at CMakeLists.txt:7 (find_package):
  Could not find a package configuration file provided by "Tesseract" with
  any of the following names:

TesseractConfig.cmake
tesseract-config.cmake

  Add the installation prefix of "Tesseract" to CMAKE_PREFIX_PATH or set
  "Tesseract_DIR" to a directory containing one of the above files.  If
  "Tesseract" provides a separate development package or SDK, be sure it has
  been installed."

Should there be something else I have to install or do to make this work?

On Saturday, September 22, 2018 at 5:05:07 PM UTC+10, zdenop wrote:
>
> Have a look at wiki APIExample 
> .
> And tesseract / tesseractmain.cpp 
> 
>  
> is just example how to use tesseract library... Tesseract is also possible 
> to build with cmake, so all you need is just to have a look at the code...
>
> Zdenko
>
>
> so 22. 9. 2018 o 8:49 Adam Richards > 
> napísal(a):
>
>> Hi I want to use Tesseract to detect numbers in a sudoku puzzle. I 
>> already have all my opencv c++ code that will produce a Mat for every cell 
>> with a number in it, to run this I am using Cmake to generate the code. 
>>
>> I was just wondering how I can install, setup and use tesseract to read 
>> the numbers from each cell within this c++ code, as I can only work out how 
>> to run it from the command line.
>>
>> -- 
>> 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 .
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>> .
>> Visit this group at https://groups.google.com/group/tesseract-ocr.
>> To view this discussion on the web visit 
>> https://groups.google.com/d/msgid/tesseract-ocr/93a0d413-f0a2-41c4-8944-67c61b0a784f%40googlegroups.com
>>  
>> 
>> .
>> For more options, visit https://groups.google.com/d/optout.
>>
>

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Re: [tesseract-ocr] Tesseract to detect numbers with opencv (c++) and cmake on a raspberry pi

[Zdenko Podobny]

Have a look at wiki APIExample
.
And tesseract / tesseractmain.cpp

is just example how to use tesseract library... Tesseract is also possible
to build with cmake, so all you need is just to have a look at the code...

Zdenko


so 22. 9. 2018 o 8:49 Adam Richards  napísal(a):

> Hi I want to use Tesseract to detect numbers in a sudoku puzzle. I already
> have all my opencv c++ code that will produce a Mat for every cell with a
> number in it, to run this I am using Cmake to generate the code.
>
> I was just wondering how I can install, setup and use tesseract to read
> the numbers from each cell within this c++ code, as I can only work out how
> to run it from the command line.
>
> --
> 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 https://groups.google.com/group/tesseract-ocr.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/tesseract-ocr/93a0d413-f0a2-41c4-8944-67c61b0a784f%40googlegroups.com
> 
> .
> For more options, visit https://groups.google.com/d/optout.
>

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[tesseract-ocr] Tesseract to detect numbers with opencv (c++) and cmake on a raspberry pi

[Adam Richards]

Hi I want to use Tesseract to detect numbers in a sudoku puzzle. I already 
have all my opencv c++ code that will produce a Mat for every cell with a 
number in it, to run this I am using Cmake to generate the code. 

I was just wondering how I can install, setup and use tesseract to read the 
numbers from each cell within this c++ code, as I can only work out how to 
run it from the command line.

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