Hi guys. Other than usually I don't have a question. I have benchmarked a few NVIDIA GPU's with OpenCV functions and related it to the CPU performance of two...
Now that 2.4 is barely out and there is a site which collects bug reports for 2.5. already. So - who is in charge? It looks like each release has its own...
Found bug in gpu::warpAffine when input is GpuMat with 4 channels, uchar. There is an x and y offset that moves the image when using 4 channel gpumat, altough...
I'm at the beginning in opencv and I would like to see the content of the func code cvRectangle. I only found this in core_c.h: CVAPI(void) cvRectangle(...
Hi, Does someone have a good example showing how training for HOG+SVM or/and haartraining is done? I'm having some problems to understand how is it performed. ...
I have been trying background subtraction using Mixture of Gaussians using the following python function: cv2.BackgroundSubtractorMOG(history, nmixtures,...
i'm just starting looking at implementing a vision system for a pick and place machine for home use , anyone working on such a project ? , and willing to share...
I'm using opencv's EM implementation, but I'm running up against a bug in the released version (2.4.0): http://code.opencv.org/issues/1939 This bug says it's...
Hello all, I'm a little bit new to both OpenCV and linux ( I use ubuntu 11.10 ) I need to use OpenCV on a linux based remote serve. I have OpenCV installed on...
Our design team has implemented automated image stitching utilizing OpenCV with the images being read into MAT files from the hard drive. We wish to modify the...
Hi, I am working on face detection and recognition problem and am trying to implement it using a live feed. However, I am getting an appreciable lag when I am...
Hi, I'm trying to use Sift in OpenCV-2.4.0, specifically SiftFeatureDetector and SiftDescriptorExtractor. When I try to compile my file, however, I get the...
Hello, i try to calculate eigenVectors and EigenValues and show some of those eigenfaces based on the servo magazine code source, but when i copmile it, it...
I am having difficulty getting a code ported to a new platform to work, and the problem is when I open a file. I can't see anything obviously wrong, and this...
Hi, I am trying to get the width of the moving pixels in Motion detection. For that I have separated t5he foreground too. Now I have no idea about how to get...
Using CUDA with openCV, on every gpu i tested the first function call is slow. I know this is a known fact with OpenCV, but it is not documented well. It takes...
The EM class has a predict method that will give me the posterior probability of each gaussian distribution given my data. However, in my case I actually want...
Hi everybody! I am a beginner in the use of this library and I am looking to make a shape detection in an image. Do not believe it, but I did google searches,...
I am facing a situation of which I have no idea. I am trying to test a method that I have implemented in C++, opencv and I used swig to generat the wrapper....
Hi all, I'm having some difficulties using SURF. I have in my project: #include <cxcore.h> #include <highgui.h> #include <imgproc/imgproc_c.h> #include...
Hi, i using OpenCV 2.3.1 and i'am a bit confused about the behaviour of cvFindContours. Input: Mat input = (Mat_<uint8_t>(4,5) << 255, 255, 255, 255, 255, 255,...
I was testing a code from internet for face detection in OpenCV. But when i run the exe generated from the code on a particular image, the window is very big...
Hello everyone, I am trying to make a new win 32 form application project in VS2010 with openCV. I included all lib and headers to my project (the same setting...
Hello everyone, I’m a new learner in OpenCV.I find out that there's no deeply explaining even on OpenCV's reference document.For example, Scalar_ 4-element...
