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View ArticleProject not responding
Im running this code: #include #include #include #include #include #include #include using namespace cv; using namespace std; int main() { //create matrix for storage Mat feed, feed2; //initialize...
View ArticleOpenCV 3.0 undefined reference to `WebPEncodeLosslessBGRA'
I am trying to compile OpenCV on Ubuntu 12.04 LTS. The build keeps failing with the following error: ../../lib/libopencv_imgcodecs.so.3.0.0: undefined reference to `WebPEncodeLosslessBGRA'...
View ArticleGMM assignment incorrect in grabcut.cpp?
Hello, I was looking at http://code.opencv.org/attachments/934/grabcut.cpp. If "x" is a 3d vector and "z" is the gmm component that generated it, whichComponent() at L134 computes argmax p(x | z) by...
View ArticleAre there versions 2.XX available on Centos7?
Are there versions 2.XX available on Centos7? Because the projects are compeleted using C.
View ArticleWhen I used UMat to active OpenCL, it seems stack-overflow
I'm trying use opencv with opencl in my Android phone. When I call bilateralFilter with UMat type parameters, there was wrong: OpenCV Error: Bad argument (Unknown/unsupported border type) in int...
View ArticleErrors while building OpenCV 3.0.0 with -D BUILD_TBB flag.
Originally, I wanted to compile opencv 3.0.0 with TBB support on my Raspberry pi. However, libtbb-dev is not available on official raspbian repository. So, I decided to compile OpenCV 3.0.0 from the...
View ArticleOpen CV binary for Android with nonfree
Hi all, I am looking for pre-compiled binaries for Open CV Android with the nonfree package. armv7 would be enough for me, I really don't need all the architectures. (If you have binaries for the...
View Articlecalibration: DLT smaller error than solvePNP
I'm trying to calibrate the velodyne lidar to the camera. I picked corresponding points between the camera's image and the range image and then performed direct linear transformation, as well as using...
View ArticleTerminology & Tutorial for Digitally Interpretting Environment
I am looking into coding a crude hobby C++ program that can Analyse a video stream and identify objects in that environment/frame (object depth & contours/shape). As this is not a trivial thing to...
View Articlehow can I find necessary rectangle? or how can I find the width
using the code I can find contour, then draw a rectangle and write information about the width and height. #include "opencv2/opencv.hpp" using namespace cv; using namespace std; int main(int, char**) {...
View ArticleProblem compiling with WITH_XIMEA
I'm having trouble compiling openCV from source. I want to compile it with XIMEA support ON and for python 3. I've used both VS 2015 and mingw (windows 7 x64 and windows 8.1 x62) but I can't compile...
View ArticleHelp with line segment detection in java
Hi all, I am having a problem with line segment detection. I am using openCV 3. The output file sometimes has lines in the wrong places and sometimes is blank depending on the input image. I think its...
View ArticleObject Detection using SVM
I was following [this answer](http://stackoverflow.com/questions/14694810/using-opencv-and-svm-with-images), which explains step by step the coding for svm. But I am having a runtime error in the...
View Article[SOLVED] Accessing IP Camera Feed
Hi All, Thanks for taking time to view my post. I have been trying for several days to access feed from an IP Camera. Mentioned below are my code and the steps that i have done thus far, based upon...
View Articleaccess image after cutting
I have a 600x600 image ( Image) and i am cutting into pieces of 200x200 (piecesImages),by creating 3x3 blocks (Height = 3 , Width =3). Mat pieceImageFrame (200,200,CV_32F); vector piecesImagesRois;...
View Articlecannot use c++ methods of openCV
I use QT creator (QT 5.5.1)+MinGW and OpenCV 2.4.11 binaries I try to link opencv libraries in qt creator by following code: LIBS += -L$$PWD/../../OpenCV/opencv/build/x86/vc12/bin/ -lopencv_core2411...
View Articleneed collaborative effort
i want to see collaborative power of forum users. i think documentation needs some corrections and make up like...
View ArticleQt5 + opencv invalid pointer
Dear all, I spent the whole day to solve a weird problem. Qt5 and opencv can work independently. when I put opencv code into the qtcreater, bugs come. *** Error in...
View ArticleDetect 7 Segment fault on a LCD display
Hello there, I have to develop an algorithm to detect faults on a LCD display with 7 segment characters. I started to develop the algorithm , but all I did til now was finding the Region of Interest...
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