Using OpenCL's opencv API with RK3288 SoC (regarding OpenCL versions)
Good morning, I'm planning to develop a software using OpenCV 3.1.0 for an embedded [Firefly RK 3288](http://en.t-firefly.com/en/firenow/firefly_rk3288/), using OpenCL's API to fully consume the...
View Articlewhat is the best methord for processing this type of image ie,identifing...
 i want to identify objects in this type of images . this is just an example of the sensor output
View ArticleMac launch issue
I was installed opencv via brew and I was make DisplayImage demo then i tried to run demo: `bin/DisplayImage 011.jpg` dyld: Library not loaded: /usr/local/opt/webp/lib/libwebp.6.dylib Referenced from:...
View ArticleDatabase for licenseplate with Haartraining?
Anyone know of a database for an implementation of Haartraining on license plates? It would need around 5000 positive images (with license plates on them) and 2500 negative pictures (without license...
View ArticleFind orientation of a target
Hi all, I need to find the target's orientation ( the target is the arrow) in order to rotate this tray and put it horizontally. What I'm doing right now is to identify the target's position,...
View ArticleIs openCV site down?
Hi I am not able to open the opencv website. I get following error> Coming soon: Another fine website> hosted by WebFaction.>> Site not configured If you are the> owner of this website...
View Articlehow to cross compile opencv for raspberrypi
jekson@jekson-Veriton-M200-H81:~/opencv/platforms/linux/build_hardfp$ cmake -DCMAKE_TOOLCHAIN_FILE=../arm-gnueabi.toolchain.cmake ../ CMake Error: The source directory...
View Articlehow can i get individual coffee_beans from the image below
 : i need to find them remove the overlapping so i could count the number
View ArticleDo CvNormalBayesClassifier::train() and CvNormalBayesClassifier::predict()...
Hi all, I'm wondering if any folks with knowledge of OpenCV's internals can offer some advice. I'm looking for a library which offers a few different classifier types like Naive Bayes, SVM, Neural...
View ArticleCapturing image and segment
Hello There i want to segment image which is capture from cam so here is the code i wrote with help of @berak. #include "opencv2/opencv.hpp" #include "opencv2/highgui/highgui.hpp" #include...
View ArticleOpenCV 3.1 viz tutorial error
So decided to include every viz hpp file and I am getting a different error 4 IntelliSense: vtkSmartPointer is not a template c:\opencv\sources\modules\viz\include\opencv2\viz\widget_accessor.hpp 76 20...
View ArticleLevenberg-Marquardt algorithm function in openCV?
hi there, I'm trying and learning some optimization method and find the Levenberg-Marquardt algorithm. As I know there is CvLevMarq() function. However, I cannot find any c++ type function of...
View ArticleHow to link opencv(ios) framework in XCode?
I am a new to OpenCV as well as IOS development, my question might sound generic. I am trying to link the opencv framework in XCode but no success! I followed this...
View ArticleSimplest way to visualize 3D objects / scenes in OpenCV
Hi I would like to use visualize scenes in 3D (stereo vision) and also solid objects (planes) but I am not sure of the easiest approach to do it in OpenCV. I read of several ways to do it 1. Point...
View Articlecopy even and columns columns from a matrix
How to copy even columns (column numbers: 0, 2, 4) from a matrix to another matrix (column numbers: 1, 2, 3)? and how to copy odd columns (column numbers: 1, 3, 5) from a matrix to another matrix...
View Articleapply SVD on image has error
Hi everyone. I've tried to compute SVD of an image by following code: Mat image; Mat U, W, V; image = imread("pic.jpg"); Mat P; //convert to float 64 for computing image.convertTo(P, CV_64FC1,1.0/255);...
View ArticleOpenCV4Android 3.1 Mat to Allocation Renderscript
I am making an Android app to simulate colourblindness. It takes a camera feed and manipulates at runtime. - My question: I have an OpenCV Mat object rgba, containing all Pixels of a given frame with...
View Articleopencv and tkinter received an x window system error
I first developped with eclipse under windows seven and i had no trouble. I then tried to test the code with geany under raspbian jessie of the rasperry pi with the trouble : the program frame received...
View ArticleHow to specify EM.trainE's covs0 param in Java
I'm having trouble calling EM.trainE() from Java. The parameter is defined to be of class Mat, but the documentation says to pass in a vector of Mat's, one for each component. I'm trying to use...
View Articlehow to install opencv with vtk for viz
can anyone post a link to a guide or write it down here ? Im going to follow this video to install vtk https://www.youtube.com/watch?v=IgvbhyDh8r0 how do i make opencv work with vtk after that ? I...
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