OpenCV & Axis Camera - Mac Cannot Read Movie File
I am trying to run a live video feed from an Axia camera configured on my network. I can connect through the web browser, but the Eclipse build fails when I run it. I have the latest versions of Java...
View ArticleHowto cmake opencv in Raspian
Instructions not detailed enough for me - have created temp working directory holding unzipped opencv files. Have cmake 2.8.9 built ok. pwd = directory holding the unzipped files>Tried cmake -D...
View ArticleDetect cattle in drone video footage
I’m looking at using OpenCV to detect cattle within footage taken from a drone. Every time I get to the point of making a decision on what technique I should use I either read something contradictory...
View ArticleOpenCV Face detection works on PC but not on Laptop
I was trying out the face detection mechanism of OpenCV 3.0 using Java 8u40, i. e. the very simple HelloOpenCV example. Exactly the same code and libraries on PC and Laptop. **Problem** The face gets...
View ArticleGet camera pos matrix from depth image
Hello, I have got depth image And I need to get Camera pos matrix, I suppose my 2D and 3D points are wrong void getWorldAndImageCoordinates(cv::Mat& image, vector& world_coords, vector&...
View ArticleFilling a dynamic model
Hi all, I am working a project where I have to create a dynamic model for the received input image. This is the input image( [kiwi_defect.jpeg] ) [kiwi_defect.jpeg](/upfiles/14425608212127298.jpeg) I...
View ArticleSVM TrainAuto test_samples
Hi, I was looking for updating to 3.0 and checked the new TrainData class and how it works with the SVM TrainAuto. As far as I can see during cross validation, the temp_test_samples matrix is never...
View Articlec++ to Python Need help to help :)
hi there, i think this is a simple question but i need an answer to help [someone.](http://answers.opencv.org/question/70629/detect-spaces-and-fill-with-rectangle/) i need a python code that equivalent...
View ArticleStrange behaviour of cv::BFMatcher to match descriptors from custom ASIF...
Dear all, I am trying to implement my own ASIFT descriptor from the SIFT implementation of VLFEAT. The problem is when I try to perform the matching with the BFMatcher. This matcher perform the...
View ArticleUnsupervised Face Clustering in opencv
I have implemented the following using opencv algorithms: 1. Face detection using haar-cascade. saving the cropped and re-size face image in a folder. 2. Manually clustering the faces in their own...
View ArticleVector Subscript Out of Range - what does it mean and how to solve it?
Hello, I had been using the code for single image and it had working fine. But today I want to have it to run using video. Error now vector subscript out of range. What is that mean? #include...
View ArticleBall Tracking
Hello, I am working on ball tracking. So far, using a calibrated camera, i have segmented a court area and segmented the ball from the background. We know the dimensions of the court and the ball. The...
View ArticleOpenGL to OpenCV
Hello, It is possible to set an OpenCV Mat as the background of an OpenGL window and to draw a 3D object on top of it. How would you then add another layer? For instance. Background subtraction gives...
View ArticleI'm the battle to replace Margaret Thatcher the gap
I'm the battle to replace Margaret Thatcher the gap I see you again thanks be to the right like the major campaign team was led bynorman Lamont with William Cerebria Hague in attendance no minimum...
View ArticleSVM on iOS versus OSX
Hello there, I am developing a coin recognizer for iOS and I'm using opencv for feature extraction and SVM training. So far, I managed to train my classifier on my computer (OSX) using opencv 3.0, SIFT...
View ArticleWhat is the best way to approximate a contour with a warped rectange?
I have some images containing plates and each image has a file that contains a list of points around the plate. The points were chosen manually by some persons, so there is no rule (like chose the four...
View ArticleData association for counting multiple targets?
Hi, following my previous [question](http://answers.opencv.org/question/70588/background-subtraction-and-object-counting-slow-performance/) (for which i'm going to use BGS library that seems to work...
View ArticleOpencv 3.0 Compilation error
Im running on ubuntu. Im getting an error when using cmake on opencv http://pastebin.com/vuwbz3c1 compilation error at...
View ArticleDetection of bitot's spot in the eye
Hey, i wish to detect brown spots in the eye caused by Vit A deficiency (called bitot spot) on an embedded system using opencv-python. What would be the best algorithm to go about the same. Also any...
View ArticleBackground substraction MOG2 apply gets stuck
Hi, I am using a background substraction with the following code in a class: void process(const cv::Mat &inputFrame) { // class members: //cv::Ptr pMOG2; //cv::Mat foregroundMaskMOG2; //bool...
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