Hello, I have an homography matrix, computed using cvGetPerspectiveTransform on points found in an image having assigned width and height. I want to use it to...
Hi, I'm new using opencv and I'm trying to use it with python. I thought it was simpler... For example, I can't do the following simple operation (convert...
Dear ALL, I've just installed OpenCV 2.4.0 with my own builds by following opencv_tutorials.pdf. I didn't have any problems with the builds itself, but when I...
What is wrong with these lines of code: import cv2 import numpy as np p = np.array((2.,3.)) ph = cv2.convertPointsToHomogeneous(p) This code produces the...
hello, i'm new in openCV , i try to implement PCA Algorithme with opencv2.0, so for the first step i want to calculate the eigenfaces, the eigenvalues with...
hello, i'm new in openCV , i try to implement PCA Algorithme with opencv2.0, so for the first step i want to calculate the eigenfaces, the eigenvalues with...
Hi Shervin, I'm not sure what you mean. I'm using the C++ interface...is that the same as the C interface? If so, which legacy file would I include? I'm...
I keep reading (over and over) in the OpenCV documentation that cvFindContours() offers an optional "offset" argument such that "This is useful if the contours...
Opencv's imread function seems to be loading a jpeg of mine in BGR format. Why is this? I wasn't aware that this reversed format existed until now... Is there...
Hello Everybody, I was trying to start a Projekt with Stereo Vision. My Problem is, that i can't get Videodata from 2 Cameras. I Use Windows 7 64 bit, OpenCV...
87923
Jenny Wui
jenny_wui@...
May 23, 2012 12:11 pm
Hello, Â Â Â Â Â Â I already posted this question. I am again posting it. Pls answer to my query or let me know if u have any better suggestion. I would like...
Hey guys, We are continuing to have issues using OpenCV with RTSP sources. Recently I found adding ?tcp to the address string of our camera when calling...
Hi. I am currently using opencv1.1 and got no problem so far in using it. However, since last few days, i got an error 'unhandled exception...access violation)...
I found my problem! First you have to use the open() method, it is not enough to ist use VideoCapture cap(0); And second you have to specify the frames (width,...
I haven't used those matrix functions myself, but I see that the three matrices are different sizes. Isn't there an assumption that the input sizes will...
Hello, I am wondering if anyone else is using this camera and has had success. I can view the camera in the web browser and I can open the rstp stream in VLC...
Hi guys, I am currently having some problems on building cvBlobsLib in VS2010 with OpenCV 2.4.0 and I have fixed some after googling. But another error came up...
I have been trying background subtraction using Mixture of Gaussians using the following python function: cv2.BackgroundSubtractorMOG(history, nmixtures,...
i forgot to mention that while I changed into bigger matrix size, i also changed the other matrices accordingly such as CvMat *ax1=cvCreateMat(8,8,CV_64FC1); ...
You can follow the Eigenfaces tutorial at " http://www.cognotics.com/opencv/servo_2007_series/part_5/index.html", it shows the OpenCV code for it. Cheers, ...
BGR is the default color format for OpenCV (it has always been that way). You can use cv::cvtColor() with CV_BGR2RGB to modify an image after it is loaded, or...
Your original post shows that you are using the C interface, not the C++ interface, so this might need the legacy module if you are using OpenCV v2 where C++...
You should get faster response if you post this on the android-opencv group at "https://groups.google.com/group/android-opencv/" Cheers, Shervin Emami. ...
Hi everyone, Maybe I didn't understand it correctly, but it looks to me that the find_obj.cpp flann sample is still relying on c++ flann classes, which is ...
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...
