Qt & OpenCV @ Eclipse
Dears, I'd like to use Qt with OpenCV and use Eclipse as IDE. Now I did not build OpenCV WITH_QT option. Do I need to rebuild OpenCV WITH_QT option to be able to use Qt? What WITH_QT option real means?...
View ArticleProblems compiling with gcc due to #define interface struct
Hello all, I'm having a problem trying to compile OpenCV as a static library (though this info is probably not relevant to the issue). When I compile, I get 4 errors, 1 each dealing with destructors...
View ArticleProblem Saving trained EM (Java)
Hi to all, Using the OpenCV 2.4.5 bindings for desktop Java, I've successfully estimated the parameters of a Gaussian mixture model (GMM) using EM and a set of samples. For later use, I would like to...
View Articlefindcontours in java not giving desired results
Hello All, Today is my first day at OpenCV. I recently got fascinated with OCR and found OCV to be best and can do more than usual it. So after setting up my development environment I started to code....
View ArticleAutomatic license plate recognition in opencv Java
Hi, i write soft java automatic license plate recognition using opencv, you do have code examples or solutions not
View ArticleImage/Symbol Recognition in iOS using OpenCV
Hi, I"ve been trying to use the image recognition features of OpenCV to recognize the main features of a Tic Tac Toe board (i.e. the grid, how many spaces have been filled, how many Xs and Os etc.)...
View Articlesplit r g b matrix from rgb image
Mat image; Mat grayFrame; Mat blue_matrix ; Mat diffFrame; image = cv_ptr->image; float max=0; //obtain luminosity image and blue matrix and diffframe of blue and luminance for (int row = 0;...
View ArticleLoad Image from memory
Hi, Im currently using OpenCVsharp, its a .NET wrapper for OpenCV. I have been able to load image from disk: OpenCvSharp.Cv.LoadImage("C:\test\Myimage.bmp",OpenCvSharp.LoadMode.GrayScale); Now I need...
View ArticleHSV value of a RGB pixel
1. [Original.jpg](/upfiles/14429936593799676.jpg) 2. [HSV.jpg](/upfiles/14429937193522643.jpg) The first image is the orginal BGR image and second (HSV.jpg) is the HSV color converted image I opened...
View ArticleXcode 7 does not build project with opencv 3.0.0 framework
I can't build project with a new version of the opencv 3.0.0 framework (version 2 did not have this problem). Xcode 7 does not compile c++ sources as c++. Here's the simplest setup that is not...
View ArticleInformative websites related to OpenCV
i think it will be useful if we add links of informative websites related to OpenCV here. Lets create a list together. - **C ++** - http://www.bogotobogo.com - https://github.com/MasteringOpenCV/code -...
View Articlecamera calibration memory error
The calibrateCamera function gives the following error when I try to calibrate my webcam with a 8x4 checkerboard: "Unhandled exception at 0x75854598 in calibrationtest2.exe: Microsoft C++ exception:...
View ArticleError building OpenCV 3.0.0 with FFMPEG
Hello, This is my first question on this forum. I have been using OpenCV for a while. However I have recently changed my system to a cluster where I do not have any admin permission. The problem is...
View ArticleHow to load EM model using OpenCV android sdk V3.0.0
Hi all, I am using EM.Java to create a model and I save it to the file but I can't find the way to load it back for prediction purpose. EM model = EM.create(); model.setClustersNumber(32);...
View Articleisotropic non-linear diffusion smoothing (Perona-Malik)
Now in addition to the my [previous thread regarding isotropic linear diffusion smoothing](http://answers.opencv.org/question/70552/isotropic-linear-diffusion-smoothing/), I want to solve the...
View Articlecars fading in traffic jam
Hi, i want to calculate traffic jam. To do this I got the contours of the foreground.. But I have a big problem. If the traffic for a long time.And the cars do not move for several minutes. As a...
View ArticleCoin detection to make coin matching system
I'm developing an matching system in java using opencv the system accept an image with one object which is coin in order to determine the value of the currency. What I did : 1-Convert image to gray...
View ArticleMethod to subdivide image into multiple images?
I am looking to see if openCV has any built in functionality for creating a(for example) 10x10 grid across a sub-region of the image, and then doing the same thing across the whole image so each...
View ArticleCUDA SURF Keypoint Detection on GPU ROI
I am trying to implement a GPU version of some regular OpenCV code I have. In particular, I perform Surf keypoint detection on only a user specified ROI of a larger Mat. My non-GPU code looks like: Mat...
View Articlecan't get the trained parameter alpha and rho by any function
I have checked that the CvSVM member desicion_func is protected but I want to get the alpha and rho. But I cannot find any function which allows me to do that. I can save the svm parameters to an xml...
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