libnative_camera_r4.4.0.so fails in Android 4.4.2
The android board that I have is version 4.4.2 I have a opencv camera app but fails to open. Please find below app_error.txt part " backtrace: #00 pc 00026306 /system/lib/libgui.so...
View ArticleObtaining rect dimension when clicked anywhere in the box ?
Can someone please give an idea as to how to get the dimensions of a rectangle when clicked anywhere inside the rectangle box ?
View ArticleCascadeClassifier Training - pressing "Return" Key continues computation.
Hello, I've seen problems for the application opencv_traincascade.exe being stuck in finding enough negatives samples, so that the application stops on terminal output `NEG current samples: x`. I...
View Articlefeature2d_manual.hpp modifications don't take effect
I am trying to use BRIEF descriptor in OpenCV 3.1 for andoid. In order to achieve that OpenCV has to be built from source with _contrib. So I compiled it without errors and could also see BRIEF.cpp.o...
View Articlee behind the swarms that keeps the unwavering quality. The
ome of the critical elements like tourmaline clay surface behind the swarms that keeps the unwavering quality. The 360 degree electra hair straightening brush power card is appropriate for simple use...
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 ArticleHand Posture Recognition using Machine Learning
Hey guys, I am currently working on my thesis and for that I am trying to recognize different hand postures for controlling an embedded system. My first implementation used simple skin color...
View ArticleValueError: total size of new array must be unchanged
Hello there I am building a OpenCv2 self driving RC car and want to train it With CNN (neural Network) first.The camera input is from a wireless Ip camera stream.The car has to move in different...
View ArticleOpencv 3.1 build error
Hi, I am trying to build opencv-3.1 from source using Visual studio 2013. I have followed the procedure of installing opencv-3.1 from...
View Articlesys/videoio.h: No such file or directory
Hi, when I try to install opencv and run this code cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D WITH_TBB=ON -D WITH_V4L=ON -D WITH_QT=ON -D WITH_OPENGL=ON .. So,I got an...
View ArticleAndroid Studio, OpenCV, C++, jni, NDK - unable to configure?
Sorry if re-posting here in addition to Stack Overflow is considered rude, I'm not sure about the etiquette rules on that. In any case I'm attempting to get the 2nd OpenCV sample:...
View ArticleOpenCV 2.4.4 Debian installation
Hello, I tried to compile OCV 2.4.4 from sourceforge on Debian Wheezy. Here cmake config: root@CMogilkoDebian:/home/cmogilko/sources/OpenCV-2.4.4# cmake -D CMAKE_BUILD_TYPE=RELEASE -D...
View ArticleHow to remove unwanted corners in images?
Hi, I am trying to rid of the corners in an image where I will be combining that image with three other images. The corners have been blocking a part of the image next to it. The images are in the...
View Articlenot able to detect the edge of tomatoes which are in a bunch overlapping each...
source image  using find contour/draw contour  the lower bunch has 3 tomato but it is not showing...
View ArticleOpenCV build fails in ubuntu 16.04
I'm getting the following errors while trying to build OpenCV 3.1.0 on Ubuntu 16.04. Scanning dependencies of target opencv_test_superres Scanning dependencies of target opencv_perf_superres [ 64%]...
View ArticleUnderstanding of planes in NAryMatIterator
I have 3-dimension matrix: const int n_mat_size = 5; const int n_mat_sz[] = { n_mat_size , n_mat_size, n_mat_size }; cv::Mat m1(3, n_mat_sz, CV_32FC1); Now I'd like to iterate its planes and expect...
View ArticleBus passengers detection and tracking using overhead camera
I need some advice on detection and tracking using OpenCv. We have cameras inside a bus. Cameras locations could be changed. Main task is to know about each passenger, when he has entered the bus and...
View ArticlePython - Undistort script won't work
I wrote the following script to undistort multiple photos in one go by defining a containing folder. Because of the fact that the camera I am using is calibrated professionally and all of the...
View ArticleOpen cv 2.4.13 - videoio.videowriter - Java
How to use video writer from 3.1.0 in 2.4.13? Have built library with cmake and visual studio 2014/x64 but only 310/2413.jar file and no 310/2413.dll and no Java folder in build folder. I need answer...
View ArticleSparse Bundle Adjustment for Python in Windows
Hi, I have been looking all over the web in order to find good a sparse bundle adjustment python code but haven't being able to. A constraint I have is that I am in windows. If any one can provide a...
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