Lomba1986's profile - activity

Dear users, I have a problem with function solve.

I have a system and I want resolve it by formula Ax=b. I generate correctly A and b matrix, and I call function

solve(A,b,solution,DECOMP_LU);

the solution is completly wrong. I try resolve the system using matlab and the solution is different.

I ask you...why does the function "solve" not work?

Hello everyone I have a question about calibration. I'm working with a single camera, in a two-dimensional space (x,y). I have a calibration grid and I can get the information on the distortion of the image.

What I want to know is how can I calibrate the camera so that an y pixels correspond mm.

You have no idea how to do this? How can I make the association?

Dear openCV community, I have a little question for you. I just tried the Calibration tutorial that I found here on opencv tutorials section.

Now I have the undistorted image, but how can I pass from (x,y) coordinate of a image's pixel to (x,y) of he world?

I have to switch from a 2D coordinate system (image) to another 2D coordinate system that has a different origin.

In systems that I have seen so far are used 4 image points which are associated to each of the coordinates of the world.

There is a function of OpenCV that does this? is a function or it is just a mathematical proportion? I ask this because there is to keep in mind the prospsettiva and do not know how to handle it.

I found only the functions that manage the transformation from 2D to 3D with two cameras, but I have only one camera available.

Do you have suggestions?

Hello to all, I have a problem with the settings of visual studio 2010.

I followed step by step guide that I found on your website and trying the sample program I can compile without problems.

The fact is this: when I run the program, it gives me error as it finds the .dll libraries.

Guide on this step is not explained. Where and what should I include in Visual Studio? Could someone help me please?

Hello everybody, I have a little problem with Opencv 2.4.8. I installed the library and I tried to configured my Visual Studio 2010. I set: - In c/c++ -> general -> Addictional directories $(OPENCV)....\include - In linker -> general -> Addictional libraries -> $(OPENCV_DIR_x64)\lib;$(OPENCV_DIR_x86)\bin;$(OPENCV_DIR_x86)\lib;$(OPENCV_DIR_x64)\bin - In linker -> input -> Additional dependencies -> opencv_core248d.lib;opencv_imgproc248d.lib;opencv_highgui248d.lib;opencv_ml248d.lib;opencv_video248d.lib;opencv_features2d248d.lib;opencv_calib3d248d.lib;opencv_objdetect248d.lib;opencv_contrib248d.lib;opencv_legacy248d.lib;opencv_flann248d.lib;

Visual Studio 2010 fails to compile correctly, but when I start the program, this does not work and can not find the opencv_core248d.dll.

What can I do? Where did I go wrong?

Thank you