Opencv 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 extract 'row' of element from a 3D mat ?
I have an array of 48 matrices, each of size 49 x 49. I can merge them to form a 3D cube of size 48 x 49 x 49. How can I extract a 'row' of elements along the 3rd dimension to form a vector of 48...
View ArticleHow to use opencv dft with Neon support from Qt on Raspberry Pi 3
Hi All. The problem is that my cv::dft function is running extremely slow on the raspberry pi 3, comparing when ran on a regular PC. I have a raspberry Pi 3 ( jessie ), with opencv 3.1.0 and Qt...
View ArticleHow to combine vector of 2D mat into a 3D mat ? Or
How to combine vector of 2D mat into a 3D mat ? Or how can i directly fill up a 3d mat with 2d mats ? This is my code but its not working int planSize[] = { 48, 49, 49 }; cv::Mat voxel(3, planSize,...
View ArticleProblem with OpenCV calibration module
I have been spending some time to get my camera calibration working using OpenCV module as documented...
View ArticleOpenCV Error: Bad argument (Unknown array type) in cvarrToMat
Hi Everyone I am trying to run this calibration program : http://fossies.org/linux/opencv/samples/cpp/tutorial_code/calib3d/camera_calibration/camera_calibration.cpp I already compiled it successfully...
View Articleerror LNK2019 in visual studio
HI, I'm new in VS2015 and in Opencv_contrib. I'm trying to make a face recognition program using the cv::face::FaceRecognizer. In fase of compilation it gives me the following error:...
View ArticleRTSP communication problem
Hi, It is my first question in this forum, after looking for a long time any solution. I'm using python 2.7 with OPENCV '2.4.13' (I already tried with 3.1) and I can't open streams. I already solved...
View ArticleBackporting calibrateCamera
I see that in the latest dev branch, there is some work on a new version of calibrateCamera() that reports estimation errors from the calibration process. I cannot use the dev branch because there seem...
View Articlehi, i want to use Zootracer of microsoft, and i need files data are in...
files pencv_core248.dll opencv_highgui248.dll opencv_ffmpeg248_64.dll
View ArticleHiring OpenCV Developers [Robotics AI Startup]
**What is Tend.ai?** We’re a cloud robotics software company, backed by True Ventures. We allow robots to understand machines like a human. Watch our video at Tend.ai **Recent Press** -...
View Articleopencv/C++: Place a saved image over a webcam stream with facial recognition
I am trying to figure out how to place a saved image over a webcam stream in C++. The trick is that I want to place the image over a face and whenever the face moves, the image will move. I was able...
View ArticleOPENCV and JAVA erode
i have a problem with this code help me plz import org.opencv.core.Core; import org.opencv.core.CvType; import org.opencv.core.Mat; import org.opencv.core.Size; import org.opencv.imgcodecs.Imgcodecs;...
View ArticleOpenCV does not detect faces on Eclipse/Win7
Hi all, I'm pulling my hair around this one. I have followed tutorials, unzipped opencv, added my library in eclipse, copy/pasted the simple face detection program, and now it runs fine but... it...
View ArticleError while building OpenCV with Contrib-Modules
'm trying to build OpenCV with Cotrib-modules in elementry os after success installation of OpenCV i try to build it with the contrib module but always i get an error while the generation of the .jar...
View ArticleDisplaying an image (in a specified location) over a video stream
Hi I am having trouble figuring out what function to use to display an image (test_image.jpg) over my webcam stream, sort of like a filter over the users face. I have already figured out how to...
View ArticleI am trying to use the legacy.hpp as header in centos 7, kdevelop 4 editor....
/home/vlab/WorkSpaces/ImgReg/build> make -j2 -- A library with BLAS API found. -- A library with LAPACK API found. -- GSL using gsl-config /usr/local/bin/gsl-config -- Using GSL from /usr/local You...
View ArticleBuild failed opencv3.1 cuda8 vs2015
Dear all, is there anyone successfully build with this configuration. I had try many times but still giving me lots of errors and warnings. Example of warnings I received ![image...
View Articlehow to align depth image and rgb image from kinect using opencv(python wrapper)?
I performed the calibration as described in tutorial (http://wiki.ros.org/openni_launch/Tutorials/IntrinsicCalibration), I am using libfreenect , ## ---------- ## - Heading ## ## i obtained the...
View ArticleBuilding "Tracking" module in OpenCV extra modules with Cmake does not...
I am not able to get a working custom build for implementation of some OpenCV sample motion tracking examples which requires the module "tracking" part of **opencv_contrib**. I tried to custom build...
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