Undefined reference to 'cvSmooth'
Hi. Write on QT and use version OpenCV 2.4.13. Today, with a problem. When you start the program, fails with the following error: D:\delo\po-russian\po-russian\sglazhivanie.cpp:31: error: undefined...
View ArticleConfidence value for svm model
I am using SVM algorithm to recognize Facial Expression using opencv library. I want to get prediction confidence of my test image but the syntax of predict is something like **float response =...
View ArticleTransform buffer to cv::Mat without copy.
I try to convert buffered data in cv::Mat (it's originaly to make a python binding numpy array to cv::Mat) my code here https://github.com/edmBernard/pybind11_opencv_numpy in python when we do channel...
View ArticleImplementation of functions with Python to C ++
Good afternoon ! The task is to implement the replacement of face. faced with the problem of transfer of color and glare. I found this...
View Articleeye landmark points
Hi I'm using facial landmark detector (dlib) to detect eye blinks . How the eye landmarks can be imported to a file ? I need to use eye landmarks to calculate the ration between height and width of...
View Articlenon planar Calibration
I have a set of corresponded 2D-3D points and i want to calibrate my camera based on these points. the opencv function gives me the following error since my points are not planar. OpenCV Error: Bad...
View ArticleHow to read sequentially image files in OpenCv and C++
Suppose I have 7 numbers of ".jpg" files in a folder. All the names are numeric that is 0.jpg, 4.jpg, 1.jpg etc. How to read the files sequentially according to there name incrementally. That is first...
View ArticleOpenCV 2.4.13 for Windows Phone 10
Greetings, I've been lurking around these forums to find a solution to my problem but there doesn't seem to be any way to solve it. For a personal project I need to make my code work on a Windows Phone...
View ArticleLinking staticlib in mvs2013 release gives external errors
I have multiple errors LNK2001: unresolved external symbol error "opencv_highgui2413.lib(cap_vfw.obj) when i try to use the staticlib folder instead of lib and dlls in mvs2013 windows 10 and release...
View ArticleSmoothing edges change black color
I am getting foreground image from grabCut algorithm and then i apply below algorithm to smooth its edges. It is working fine and smoothing edges but it is also changing black color in the image. You...
View ArticleChange FPS on video capture from file
I'm reading a video file, and it's slower than the actual FPS of the file (59 FPS @1080p) even if i'm not doing any processing to the image: using namespace cv; using namespace std; // Global variables...
View ArticleDynamically change Mat header values?
I'm trying to send a Mat over a network socket, something like this Mat Img; VideoCapure << Img; send (socket, Img.data, img.total() * img.elemSize() ); Then on the receiving end Mat img; img =...
View ArticleOpenCV gives Assertion failed error when running on GPU using OpenCL
I have an "Nvidia GTX 970M" GPU & I am trying to run a face detection algorithm in c++ that runs on the GPU using OpenCL. The function where this error occurs is :...
View ArticleANN_MLP segmentation fault on predict() if not directly preceeded by train()
Hey, i am using c++ OpenCV 3.1 on Ubuntu Xenial. I think i found a bug in OpenCV but want to reassure that I am not missing something. I have code that first trains my ANN_MLP with training data in one...
View ArticleOpenCV Error: Assertion failed (channels () == CV_MAT_CN (dtype)) in copyTo,...
Currently am working on real_time_pose_estimation for 3d objects: 1.successfully compiled and executed model registration 2.when comes to model detection compiling is successful but throwing above run...
View ArticleCamera callibration does not complete for my set of images.
I am trying to calibrate my camera using the sample code found on samples/cpp/tutorial_code/calib3d/camera_calibration/ ( the official documentation). It runs when I enter it for the image given by...
View ArticleError clahe opencv 3.0 undefined reference to symbol
Hello. Before ask here I tried http://answers.opencv.org/question/46755/first-example-code-error/ but didn't solve the problem. This is the code i'm using: >'#include "opencv2/imgcodecs.hpp">...
View ArticleIn real_time_pose_estimation( samples given in opencv 3.1.0) no errors but...
1. Registered the 3D textured model of the object to be detected in a .yml file .[keyPoints.png](/upfiles/14818095612197492.png) 2. Storing the 3D information...
View ArticleHow to start with neural network implementation with Opencv and C++??
I want to train for face Recognition Problem. I want to test it with Neural Network and want to compare it with the result obtained from PCA+SVM. Problem is some how like this:- 2. 4 persons . I have...
View ArticleI need help for image classification
I have been using Discrete Fourier Transform for preprocessing method. Now for classification, I need to take Discrete Fourier Transform,assign label to DFT and then train KNN for the training...
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