gp's profile - activity

Dear all,

I would like to study in detail the code of the class FREAK described here: http://docs.opencv.org/modules/features2d/doc/feature_detection_and_description.html#freak

do anyone know in which files it is implemented?

thanks all!

Dear all,

I am new with openCV, I am trying to use the graphical interface highgui.

I have tried the following very simple piece of code, which is compiled properly, but when I run it I get an error message like

"Unhandled exception at 0x774f15de in try1.exe: 0xC0000005: Access violation reading location 0xcccc006f."

What am I doing wrong?

Here is the code:

// try1.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <iostream>
#include "opencv2/core/core.hpp"
#include "opencv2/highgui/highgui.hpp"
//#include "myfunc.h"

using namespace std;
using namespace cv;

int _tmain(int argc, _TCHAR* argv[])
{
   namedWindow("Hello");
   return 0;
}

I don't know if it matters, I have created a C++ console application with Visual Studio 10.

I thank you for your very kind help.

Hello everyone,

I am starting using opencv, I would like to ask if there are functions to concatenate matrices, e.g. (matlab notation):

given matrices A = [1,2,3; 4,5,6], and B = [11,22,33; 44,55,66], I would like to produce the matrix H = [1,2,3,11,22,33; 4,5,6,44,55,66] (horizontal concatenation), and the matrix V = [1,2,3; 4,5,6; 11,22,33; 44,55,66] (vertical concatenation)

does openCV provide me the way to do it easily?

Thanks a lot for your kind help, GP