Can OpenCV detect face of a baby or toddler?
Just wondering if OpenCV can detect face of a newborn baby or toddler?
View ArticleOpenCV on Raspberry
Hi everybody Maybe you can help me. I'd like to use OpenCV in my Raspberry to manage a standard webcam but I'm not sure about the best language to build the application. Can you help me? I'm thinking...
View Articletextdetection sample producing errors
i am trying o run the file textdetection.cpp file present[ here ](https://github.com/opencv/opencv_contrib/tree/master/modules/text/samples) .. i tried it with different images but every time an...
View Article(python) VideoCapture() returns zero for all CV cap props
Hello everybody, I am trying to create a plot as overlay in my video (uisng openCV and matplotlib). The first thing would be to detect the frames of the video. This is what I am trying to do: cap =...
View ArticleAssertion error in cvtColor
Hello, I use the Face Recognition's tutorial with OpenCV in C++ avaible on the [official documentation](http://docs.opencv.org/2.4/modules/contrib/doc/facerec/tutorial/facerec_video_recognition.html)....
View ArticleHow to implement Gabor Filter on image captured bye Camera in Android?
I want to detect the dent from the surface of car . I have searched the solution that it can be done with Gabor Filter. Please tell me the solution how to use the Gabor Filter with imageview in...
View ArticleopenCV in a c++/CLI
Hi. I'm trying using OPENCV in a c++/CLI winform project. (VS2015, OPENCV310 x86) Classes accesing OPENCV code are with 'No Common Language RunTime Support' switch. Then, I call those classes from...
View Articleis there a way to enable flashlight/flash on regular camera
Is there a way for me to enable continuous flash or a flashlight/torch mode if you will as on mobile devices, for the isight camera (or any webcam). I've seen examples on how to do this with android...
View ArticleWhat are the "moments" in opencv ? Ratios, eigenvalues and eigenvectors
I asked this question : [Question about second momentos](http://answers.opencv.org/question/96733/calc-the-seconds-moments-of-area-of-huge-number-of-countours/), which @Tetragramm helped me a lot . For...
View ArticleUnderstanding relationship between image resolution and "zoom" capability
New to CV so sorry if this question lacks proper terminology or is completely nonsensical. :) The goal is to track a specific player during a basketball game and produce a video that follows him around...
View ArticleHow to detect and recognize traffic light road lined with trees
Hello guyz.I want to detect and recognize traffic lights.But my way has alot of green tree so I dont use green color detection.Please help me.Thanks in advance.
View ArticleFace detection with HAAR Classifier
Hi, I am trying to detect face features of people while using a webcam. I used HAAR Classifiers with haarcascade_frontalface_alt2.xml. It works well but the main problem I have is that as soon as the...
View ArticleCalculation 4x4 matrix of camera
Hi everyone! I have World Frame. I have diodes and I know coordinates of them (X,Y,Z) in this World Frame. I have camera, which takes pictures. I need to calculate matrix 4x4 of camera in World Frame....
View Article'M', 'R', 'L', 'E' codec recording 0 bytes
Hello, I am recording video like this unsigned char* frame;//rgb raw data int width = 800; int height= 400; Size frameSize(width, height); VideoWriter recorder(name.toStdString(), CV_FOURCC('M', 'R',...
View ArticleBitmap to Mat in vb.net
I want to convert a bitmap to a Mat object in vb.net. The function that I have found, BitmapToMat, appears to be a Java/Android call and does not appear as an available function under the Utils...
View ArticleHow to pass values to main function (vs2015,opencv,c++)
if i have downloaded the code from somewhere lets say its abc.cpp and its having main as : int main(int argc, char* argv[]) { Mat image; if (argc>1) image = imread(argv[1]); else { cout << "...
View ArticleCannot access x264 codec
I am linking the opencv library into my c++ app, and have x264vfw codec installed. When I try to open the videowriter with fourcc x264 and extension of .mp4 or .avi, the open fails. Not sure why as I...
View ArticleWriting values got from template matching to new image
Hi, Could you please help me with the task? I have to write values of correlation coefficient between two images to the new one. I am trying to compare two same size images (116x206px) by cropping...
View ArticleGUI for OpenCv with visual studio
Hi I have implemented a code using C++ visual studio 2013, with external library: boost and opencv. Now I'm trying to make a simple graphical user interface for the OpenCv with visual studio. The GUI...
View ArticleBuild another OpenCV 3 library for a different Python interpreter in the same...
I am using Mac and already installed a computer vision library, OpenCV 3 for my computer (system-wide) and it is compiled with support for Python 2 interpreter. I am now, want to build another OpenCV...
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