4 Proven wholesome excess Weight reduction suggestions
The bruises would never completely heal because before they did I would rap my hand again several times. It was not only when I was working in the yard but when I would be walking through the kitchen...
View Articlecv::findContours crash with release dlls
Hi, I'm building a VS application linking opencv 2.4.13 release dlls even for RELEASE and DEBUG configuration. In DEBUG configuration it crashes on cv::findContours. I have already checked that using...
View ArticleKalman Filter - Assertion failed - Matrix types
Hey, I try to build a kalman filter and get runtime errors at the step `Mat prediction = KF.predict(control);` in regards to the matrix types. I checked all the types of the input matrices and they...
View ArticleOpenCV Environment variable changed
I had my standalone installation of OpenCV on my Linux machine and it was running OK. I installed ROS (comes with its OpenCV) and today I cannot run my CMakeLists.txt in any of my OpenCV projects,...
View ArticleOpencv Java MatOfFloat4 object cannot be created via constructor
I've a class which has the following variable: private MatOfFloat4 horizonLine = new MatOfFloat4(); which I later on pass into a function as follows: Imgproc.fitLine(tmpPoints, horizonLine,...
View ArticleHow to Crop and save separately the bounded region?
 here is my processed Image. I want to crop the bounded region and save the cropped area. Specially I want to crop the the Numbers for Digit Recognition...
View ArticleAccess violation reading location - when I am trying to do a clone(). The...
When I am trying to make a clone on a matrix an exception is thrown randomly for clone and for flip too. These exceptions are from opencv_world300.dll.![image...
View ArticleUsing the opencv_contrib dnn module (too slow)
I am using a caffemodel (trained for gender classification) with the dnn module of the opencv_contrib library. The issue I am having is that it is running pretty well but it is extremly slow, it takes...
View ArticlecvFindContours is faster than cv::findcontours
Hi, I'm using 2.4.8 opencv in a VS application and I have just updated source code changing old C functions with new C++ functions. In particular I have verified that cv::findcontours is slower than...
View ArticleUUsing filter2D causes crash in some Android based devices
Hi, I am writing c++ Native code for Android using JNI interface. I am doing some image processing and among others using the function filter2D. I have noticed that in new Android devices this works...
View ArticleError: Sizes of input arguments do not match, why?
I have the following code and it produces the error **"Sizes of input arguments do not match"** at the line where I try to add two cv::Mat objs together. Why? std::vector depths; for (int i = 0;...
View ArticleWhy findFundamentalMat gives different results for same but different...
Sorry if the title is kind of weird. It is quite hard to express the question of my problem. So, I am in the middle of a 3D reconstruction project. The pipeline is more or less the same with the...
View ArticleHow to crop digits automatically in sequence for recognition?
I am trying to implement Automatic Digit Recognition. For this I am using C++ with OpenCv. I have successfully trained SVM classifier ,successfully can able to crop the digits from the group of...
View ArticleTW6864 support for opencv?
Hello everyone. I am using TW6864 frame grabber . I would like to know whether given frame grabber will support opencv based applications ? Thank you in advance.
View ArticleProbability of two images matching?
Hello everyone. I have tons of binary images and want to sort them according to their similarities of a template. So i load a template and one of the test images. then i want to compare both of them...
View ArticleModifing source code
Hi, I want to modify some part of openCV code. My purpose is to implement convolvution function with CUDA. I'm using ubuntu os, so was built by cmake and make commands. However, I'm new to cmake and...
View ArticleConvert Mat to 16 bit int
Hi, I want to convert my 16 bit images from format cv::Mat to 16 bit. Currently, I am using this function int size = image.total() * image.elemSize(); // number of elements * size of elements float *...
View ArticleScale iterative closest Point
Hello! I am looking for a method to find the correspondance between 2 points clouds. I already tried some Iterative closest point algorithm but they only allowed to find the rotation and translation....
View ArticleWindows: VideoWriter compression dialog and codec number x264vfw
I want to encode some videos with h264 on windows using cv::VideoWriter in version 2.4.11 I downloaded and installed x264vfw https://sourceforge.net/projects/x264vfw/ and I can select x264vfw in the...
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