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2016-11-03 04:21:17 -0500 received badge  Editor (source)
2016-11-03 04:20:50 -0500 asked a question Which technique is better for text extraction from natural scene images

I want to extract the textual part from a scenic image leaving behind the background. For this, I found different techniques like SWT, MSER etc. Can Anyone tell me which techniques work better? Moreover, from where can i get some coding help regarding this? i m using vs2015 c++

2016-10-19 02:29:45 -0500 asked a question text extraction from image

I am able to detect text i.e getting bounding boxes around the text. but i want to segment detected text from background. How can we do that???

2016-09-13 23:24:43 -0500 answered a question textdetection sample producing errors

is there anyone who can actually help me in running this code... and explain the solution in detail...

2016-09-12 06:27:54 -0500 commented question textdetection sample producing errors

sorry but m unable to get u..

2016-09-12 06:06:33 -0500 commented question textdetection sample producing errors

i have already downloaded them . wat do u mean by link them to ur sample?? Are u talking about adding extra modules to opencv ??? I am new to dis all.. kindly co-operate

2016-09-12 05:32:08 -0500 commented answer How to pass values to main function (vs2015,opencv,c++)

okii got ur point.. thanx alot... i was passing the path of the image only.. but the issue was that in the path a space was there like 'research lab' so it was taking argv[1] upto research only..

2016-09-12 04:59:26 -0500 commented question textdetection sample producing errors

dey r there in samples of opencv_contrib .. Any other solution?? wt shd i try ??

2016-09-12 04:21:47 -0500 commented question textdetection sample producing errors

yea.. i have tried... but it comes up with same error... Where should these classifiers actually be???

2016-09-12 02:09:33 -0500 commented question OpenCV Error: Bad argument (Default classifier file not found!)

yes i tried dis also but got the same error again..

2016-09-12 01:46:13 -0500 received badge  Organizer (source)
2016-09-12 01:43:54 -0500 asked a question OpenCV Error: Bad argument (Default classifier file not found!)

I am trying to run textdetection.cpp present here OpenCV Error: Bad argument (Default classifier file not found!) in cv::text::ERClassifierNM1::ERClassifierNM1, file C:\opencv_ex\opencv_contrib-master\modules\text\src\erfilter.cpp,

Is there anyone having some idea about this error??? i have already added extra modules in to my opencv

2016-09-12 01:34:22 -0500 commented question textdetection sample producing errors

that exception was generated by createfilter .. I am getting this error : OpenCV Error: Bad argument (Default classifier file not found!) in cv::text::ERClassifierNM1::ERClassifierNM1, file C:\opencv_ex\opencv_contrib-master\modules\text\src\erfilter.cpp,

2016-09-12 00:55:24 -0500 commented answer How to pass values to main function (vs2015,opencv,c++)

"C:\Users\research lab\Documents\Visual Studio 2015\Projects\XtraModulesDemo\Debug\XtraModulesDemo.exe " this is the value of argv[1]..

2016-09-10 06:44:00 -0500 received badge  Enthusiast
2016-09-09 00:33:57 -0500 commented answer How to pass values to main function (vs2015,opencv,c++)

output is :

C:\Users\research lab\Documents\Visual Studio 2015\Projects\XtraModulesDemo\Debug\XtraModulesDemo.exe

IMG_W=0 IMG_H=0 OpenCV Error: Assertion failed (scn == 3 || scn == 4) in cv::ipp_cvtColor, file C:\opencv3.1\sources\modules\imgproc\src\color.cpp, line 7456

2016-09-09 00:27:01 -0500 commented answer How to pass values to main function (vs2015,opencv,c++)

do u mean i have to copy the path of the image to be read in the field 'command arguments' in both debug and release??? i have tried this, its not reading the image....

int main(int argc, char* argv[])
   {
    cout << endl << argv[0] << endl; 
    Mat image;
if (argc>1)
    image = imread(argv[1]);
else
{
    cout << "    Usage: " << argv[0] << " <input_image> [<gt_word1> ... <gt_wordN>]" << endl;
    return(0);
}

cout << "IMG_W=" << image.cols << endl;
cout << "IMG_H=" << image.rows<<endl;

}

2016-09-08 04:50:15 -0500 asked a question How to pass values to main function (vs2015,opencv,c++)

if i have downloaded the code from somewhere lets say its abc.cpp and its having main as :

int main(int argc, char* argv[])
{
    Mat image;
    if (argc>1)
        image = imread(argv[1]);
    else
    {
        cout << "    Usage: " << argv[0] << " <input_image> [<gt_word1> ... <gt_wordN>]" << endl;
        return(0);
    }}


how should i run this code ?? normally from the vs platform??? how to pass the image to be read????

how can we give values to argc or argv??? i have gone thru all the other similar questions here but dint found any solution to my problem??

2016-09-08 03:46:00 -0500 asked a question textdetection sample producing errors

i am trying o run the file textdetection.cpp file present here .. i tried it with different images but every time an exception is thrown of some memory location like Microsoft C++ exception: cv::Exception at memory location 0x00CEC6BC. why is dis happening ?? any solutions ?? I m stuck wid this text detection from several days... :(

2016-09-07 03:04:15 -0500 commented question No Make file found

yea i did this also.. but m confused with x86 and x64.. as my system is x64 and i am buliding x64 applications always.. now to give path there must be a folder x64 but its not dere .. only x86 is dere.. i have mentioned all details here http://answers.opencv.org/question/10...

2016-09-07 02:29:29 -0500 asked a question No Make file found

I need to install opencv extra modules.. so I followed the steps given :https://github.com/opencv/opencv_contrib

I did: C:\Users\research lab>cd C:\opencv3.1\build

C:\opencv3.1\build> cmake -DOPENCV_EXTRA_MODULES_PATH=C:\opencv_ex\opencv_contrib-master\modules C:\opencv3.1\sources

I got:-- Configuring done -- Generating done -- Build files have been written to: C:/opencv3.1/build

but when i run : make-j5 i got an error : no targets specified and no makefile found..

I checked my build folder, no MAKEFILE was there . WHY is it happening? does makefile is not being generated or some other issue is there?????

2016-09-07 01:40:41 -0500 commented answer Error: identifier "erstat" is undefined

thanks alot for all ur guidance. Now scene is:

-->I have built the .sln file and INSTALL project .. after that when i was updating my property sheet i noticed that no X64 folder is there in the INSTALL folder.. where was i wrong???

--> Secondly, i tried through 'make' also (i downloaed its .exe and added its path in the environment variables and hence it was recognized this time) but now error comes : no targets specified and no makefile found...

--> my cmake gui is also not working (unknown error occurs) .. i tried that too..

WHAT should I do.. with which option i should go.. PLEASE take me out of all this..

2016-09-06 05:56:49 -0500 commented answer Error: identifier "erstat" is undefined

i successfully run the first two commands: $ cd <opencv_build_directory> $ cmake -DOPENCV_EXTRA_MODULES_PATH=<opencv_contrib>/modules opencv_source_directory>

i got configuration done, generating done,build files have been written to c:\opencv3.1\build

after that when i wrote make -j5 , I got :make is not recognized as an internal or extrenal command.

2016-09-06 05:53:04 -0500 commented answer Error: identifier "erstat" is undefined

opencv3.1 , vs2015, windows10 cmake 3.6.1

2016-09-06 05:46:18 -0500 commented answer Error: identifier "erstat" is undefined

its ok.. i have tried that too. now i m stuck with 'make -j5' they say unknown command make... so whts next??

2016-09-06 04:11:39 -0500 commented answer Error: identifier "erstat" is undefined

Yea i have already done that.. m talking abt the same code textdetectiob.cpp from samples.. i m getting the same errors about erstat,cv::text , opencv2/text.hpp

2016-09-06 02:54:06 -0500 commented answer Error: identifier "erstat" is undefined

can u please tell me how shoul i add 'opencv2/text.hpp' header file ???

2016-09-06 02:46:34 -0500 commented answer Error: identifier "erstat" is undefined

:( :( :( :(

2016-09-06 02:12:34 -0500 commented answer Error: identifier "erstat" is undefined

from where to get this header file??

2016-09-06 02:11:57 -0500 commented answer Error: identifier "erstat" is undefined

How to try them, only samples are there.. Sorry but m not getting u..Actually i want to do text extraction from a scene image.. can u guide me..?

2016-09-06 00:56:45 -0500 marked best answer Microsoft C++ exception: cv::Exception at memory location

Iwant to implement a simple thresholding algorithm by comparing the pixel values of an image with some threshold and then assign either 0 or 1 to the pixels of output value correspondingly. a part of the code is:

cv::Mat gray , binary; // gray is input and binary is output image.

binary = Mat::zeros(gray.size(), gray.type());

for (int i=0;i<=row;i++)
{
    for (int j = 0; j <= col;j++)
    {

        if ((gray.at<uchar>(i, j) > NiblackThreshold)
        {
            binary.at<uchar>(i, j) = 1;
        }
        else
        {
            binary.at<uchar>(i, j) = 0;
        }

    }

Exceptions is at: template<typename _tp=""> inline _Tp& Mat::at(int i0, int i1) { CV_DbgAssert( dims <= 2 && data && (unsigned)i0 < (unsigned)size.p[0] && (unsigned)(i1DataType<_Tp>::channels) < (unsigned)(size.p[1]channels()) && CV_ELEM_SIZE1(DataType<_Tp>::depth) == elemSize1()); return ((_Tp)(data + step.p[0]i0))[i1]; }

where is the problem?????

2016-09-06 00:56:45 -0500 received badge  Scholar (source)
2016-09-05 05:46:32 -0500 asked a question Error: identifier "erstat" is undefined

I have downloaded the text detection code from github (https://gist.github.com/agasiev/10021533). but it is producing many similar errors like: identifier erstat is undefined identifier computerNMchannels is undefined identifier erfilter is undefined... and many more..

What it is so???? Can any one help me out??