I am back to capAVI. This Windows API (vfw32) is the foundation of the OpenCV 1.1 capture functions. I have a basic understanding, at least I think so, of...
Hello, I am currently working on a video 3D stabilization using Kinect, and I would like to modify (and use) the already implemented videostab module. Do you...
Hello all, I want to color matching to get free from lightning condition. How could i do that ? Could some one please help me . thanks Hello all, I want...
What's best way to allow multiple processes to read images from the same webcam? I'm working on an application that will simultaneously use OpenCV to calculate...
Dear Friends, I have uploading a gaming site on web called meyraj, you can see it at www.meyraj.com what I want is to add to it a GIS application,...
Hello, I try to Motion Detection on video. I applied frame differencing [ currentFrame - previousFrame] But Result Image has a lot of noise. I applied...
Hi, When using PCA.zip for n= 10 igot the following result.. some of the eigens have toooooooo big vlaues. is this normal? ... eigenvalues 4821171.00 ...
All, I am new to OpenCV and wanted to get your opinion on what would be the best Video Capture board to purchase. I would like to find one that is reasonably...
Hello, I would like to acquire a webcam image in a buffer using the function : videoInput::getPixels(int id, unsigned char * Buffer... ). The function and a...
Hello, I try to cross compile on Linux for Windows. Without OpenCV it works fine. A very basic program : #include <opencv/cv.h> int main(int argc, char...
whenever i pass the following cvMat in cvFilter2D() the function seems to work erroneously to give a output of all white pixel. -2 -1 0 -1 0 1 0 1 2 does...
Hello All, Â I am using Opencv 2.3.1 on Beagle Board xM. I have ubuntu 11.04 running on beagle board xM. I want to improve my performance by reducing delay. I...
Is there way to insert sub-image (Mat A) into image (Mat B) at location x,y where x and y are floating point numbers (insertion at sub-pixel accuracy). Can...
There's a moving object whose imagePoints I identity at two times with two MS LifeCams on my Windows 7 PC in MSVSC++. I want to determine the distance between...
Hi together! I try to program an AdaBoost classifier in OpenCV. I could not manage to stop the following from crashing while training is running. What could be...
hi. I need to calculate diagonal gradient image using the following mask 0 1 2 -1 0 1 -2 -1 0 is there any inbuild function like cvSobel() to compute it? ...
Hello, Just a question about legacy module: while studying on the state of art about matching shapes, I've come to the hierarchical matching method used by...
In some of the openCV sample code, there is this line: Mat bw = threshval < 128 ? (img < threshval) : (img > threshval); What is this doing? It seems like it...
hi, I am doing face recognition using OpenCV but i dont know how to compare the two images using OpenCv. Please help me to find the solution. Regards, ...
hi i am trying to figure how to properly use calcHist for a group of images. i know i have to set the accumulate flag to true. but how do i go from there? do i...
Hi everyone, I'm new on the group so maybe it's better to start by a quick description of my system; I'm running on Fedora 16 x86_64. My compiler is gcc 4.6.3...
Dear all  I want to know  Can I program with my C language under OpenCV2.3 / 2.4 or I should learn C++?  Thanks Dear all I want to know Can I program...
Hello any one know how to compute the radiance and irradiance of pixel or any formula .Please mention in detail like what color space i should be using etc....
From the gpu performance test (opencv2.4.0 Cuda4.1 Win7 64bit) Where img is a 3channel cv::Mat image and d_img are cv::gpu::mat RGBA copies of the same image. ...
Hi everyone, I followed step by step the instructions of compiling opencv for android purpose from Ubuntu 11.10 64 bits. I got 100% correct compilation, and...
