I am currently developing a piece of software using opencv and qt that plots data points. I need to be able fill in an image from incomplete data. I want to interpolate between the points I have. Can anyone recommend a library or function that could help me. I thought maybe the opencv reMap method but I can't seem to get that to work. T...
I'm trying to run a distance transform on a thresholded binary image in order to assist anomaly detection (my hope is that I can detect large changes around the edges of the object), however for some reason, upon running my Distance Transform script, I'm getting a strange banding type of effect. I tested something similar in the Distance...
Hi to all! i've a problem with openCV library under MacOs 10.4. When I try to execute this row to save some frame captured from webcam CvVideoWriter *writer = cvCreateVideoWriter( "out.avi", CV_FOURCC('M','J','P','G'), fps, ...
I am currently creating a program in Qt, OpenCv, Mac os X. I have a main window, and then a separate window that is opened. I pass the new window several matrix clones in the constructor: ImageWindow *imageWin = new ImageWindow( cvCloneMat(getData->getMasterRawMat(1)), cvCloneMat(getData->getMasterRawMat(2)), cvCloneMat(get...
I have four projects: cv cxcore highgui TemplateMatching The project dependencies: project cv depends on cxcore project highgui depends on cxcore project TemplateMatching depends on cv, cxcore, highgui but there are still some errors: Build started: Project: highgui, Configuration: Debug Win32 ..... LINK : ....\b...
Hi, I am having quite a bit of trouble with trying to push_back an object of my custom class to a vector of pointers with my custom class as the type. Please see the code below along with the error received. I am using Eclipse with the CDT plugin and OpenCV on windows xp. I have spent so much time trying to find an answer but to no ava...
I wish to convert an IplImage into a JPEG image in the memory (in order to stream it as M-JPEG frame over sockets) . I know I can use CvSaveImage for this, that creates a jpeg file, I read it again and then stream it over the network. I wish to avoid this extra disk write-read ops for faster operation. Any insights ? ...
I'm using openCV 1.1pre1 under Windows. I have a network camera and I need to grab frames from openCV. That camera can stream a standard mpeg4 stream over RTSP or mjpeg over http. I've seen many threads talking about using ffmpeg with openCV but I cannot make it work. How I can grab frames from an IP camera with openCV? Thanks Andrea ...
Hi, I'm currently trying to use OpenCV (using the Processing library). However, when I try to run any examples (either the Processing ones or the C ones included with OpenCV), I see nothing but black instead of input from the camera. The camera's LED indicator does turn on.. has anyone had the same problem? is my camera somehow incompat...
Hello, I am trying to integrate some OpenCV functionality into my application. Currently I have code set up with DirectShow to get a video feed from my camera, which is then showed in an MFC window. This code cannot be changed or removed. The code runs completely fine, but regardless of the location i place the following line of code...
Hello, I am just learning about computer vision and C#. It seems like two prominent image processing libraries are OpenCV and AForge. What are some of the differences of the two? I am making a basic image editor in C# and while researching I have come across articles on both. But I don't really know why I would choose one over the othe...
So i have a program written already that captures the image from a webcam, into a vector called pBuffer. I can easily acess the RGB pixel information of each pixel, simply by pBuffer[i]=R;pBuffer[i+1]=G;Buffer[i+2]=B. No problem in here. The next step is now create an IplImage* img, and fill it in with the information of the pBuffer......
I'm working on a C++ application that uses OpenCV/ffmpeg to capture video frames from my built-in webcam (Studio XPS 13). This application is really sensitive to those auto light adjustments that the webcam driver does.... is there any way I can change this behavior? Either via some webcam driver settings app, or in code (you may suggest...
I am using OpenCV and saving as a jpeg using the cvSaveImage function, but I am unable to find the jpeg compression factor used by this. What's cvSaveImage(...)'s Jpeg Compression factor How can I pass the compression factor when using cvSaveImage(...) ...
The two functions in openCV cvLoadImage and cvSaveImage accept file path's as arguments. For example, when saving a image it's cvSaveImage("/tmp/output.jpg", dstIpl) and it writes on the disk. Is there any way to feed this a buffer already in memory? So instead of a disk write, the output image will be in memory. I would also like t...
Hi there I had OpenCV lib installed on my machine and all was working fine, until I decided to try the new version of the lib 1.1pre. Since that moment I get the following error: Unhandled exception at 0x10012c5d (highgui110.dll) in foo.exe: 0xC0000005: Access violation reading location 0x719b3856. I've tryied to uninstall and reinst...
I am new to OpenCV, and trying to capture an image, and then save it to a file. I am posting the code for your reference, below. The jpg file is being saved, but it is black. // Capture the Image from the webcam CvCapture *pCapturedImage = cvCreateCameraCapture(0); // Get the frame IplImage *pSaveImg = cvQueryFrame(pCapturedImage); /...
Hi to all I just made an application using the OpenCV lib, and will be great if I can use this computer vision application on my PDA, which has Windows Mobile 6.0 on it. Do you have any idea about how can I do this? ...
Hello, I don't understand what I have to install to make EmguCV work.I opened the sample-src provided with EmguCV ,but I get errors in Visual studio 2008. I also tried other .NET wrappers for OpenCV,but none of them worked(including the examples). A message "(sample program) has encounted a problem and needs to close.Please report this...
Hi, I have a IPL_DEPTH_32S image (meaning I use 32bit integer to represent pixels) and I need to convert it to IPL_DEPTH_32F, so that I can apply template matching. Does anyone know the formula to convert the integers to floats, or of any functions built in to OpenCV that can do this? ...