webcam

I need to create a virtual webcam that poses as a webcam, but takes as input a set of images that it plays. I have seen solutions like ManyCam, and Fake Webcam, but they all seem to one limitation or the other (resolution, max file size, fps etc.) I am working on Windows XP SP3. I understand that I have to write a WIA interface for this task, but being a Python programmer, I have never written drivers or interfaces to devices. What are the main tasks in writing this interface ? What would the flow look like ? You need to write DirectShow filter which is a COM server that implements an IPin ,

I need to create a virtual webcam that poses as a webcam, but takes as input a set of images that it plays. I have seen solutions like ManyCam, and Fake Webcam, but they all seem to one limitation or the other (resolution, max file size, fps etc.) I am working on Windows XP SP3. I understand that I have to write a WIA interface for this task, but being a Python programmer, I have never written drivers or interfaces to devices. What are the main tasks in writing this interface ? What would the flow look like ? You need to write DirectShow filter which is a COM server that implements an IPin ,

I'm looking for a flash script/library to capture video and audio from a webcam and then somehow get a saved flv to my encoding server. I'm not looking for something that will host the videos for me. I just need something simple to capture and then upload. I really want this to be open source and free. I've done a fair amount of searching and it seems that most of what i can find is either a full blown service with hosting, or the red 5 suite. I've been trying for a day to get something going on with Red5, but honestly I haven't done any flash or java development in over 6 years and this seems

I am trying to write a program using opencv to calculate the distance from a webcam to a one inch white sphere. I feel like this should be pretty easy, but for whatever reason I'm drawing a blank. Thanks for the help ahead of time. Adi Shavit You can use triangle similarity to calibrate the camera angle and find the distance. You know your ball's size: D units (e.g. cm). Place it at a known distance Z , say 1 meter = 100cm, in front of the camera and measure its apparent width in pixels. Call this width d . The focal length of the camera f (which is slightly different from camera to camera) is

import cv capture = cv.CaptureFromCAM(0) img = cv.QueryFrame(capture) cv.SaveImage("test.JPG", img) Hi, I just want to save a picture from my webcam with OpenCv and Python on my Ubuntu 10. OpenCv can connect with the webcam. But I get this error: OpenCV Error: Null pointer (NULL array pointer is passed) in cvGetMat, file /build/buildd/opencv-2.1.0/src/cxcore/cxarray.cpp, line 2376 Traceback (most recent call last): File "video.py", line 5, in <module> cv.SaveImage("test.JPG", img) cv.error: NULL array pointer is passed Save yourself a trip to the emergency room and use SimpleCV . It's a