webcam

I am new at DirectShow, so some parts of this library i don't understand well. I already see the example DxSnap, but i need to capture frames without previewing it , for futher processing. How can i do it? you could build one yourself. If you look into the windows sdk 7.0~ folders you can go to samples > multimedia > directshow > and there should be a filters folder that shows you how to make generic filters and do w/e you want If your main concern is "access webcam" and not "access webcam with DirectShow", then I would have a look at the AForge.NET-Framework . I tried it with DirectShow once

I am having trouble accessing the external USB camera instead of the built-in iSight when using OpenCV with a MacBook Pro under Mac OSX. When passing an argument to the cvCaptureFromCAM(index) function other than 0 or -1 I will always get a Warning: Max Camera Num is 0; Using camera 0 The camera is a Sony PS3 EYE working perfectly with the macam driver and quicktime component. Yet I am unable to access it using OpenCV which will always default to the built-in iSight (even when trying to "occupy" the iSight with a different program). Any ideas? Thank you very much in advance, your help is very

I have 2 related questions for my web cam live capture application. The webcams capture data in varying formats such as YUY2, RGB24, I420, MJPG etc. I need to convert the captured data to I420 irrespective of the input format. Hence I need to know the current scope/capability of the Direct Show inbuilt Transform filter such as Sample Grabber. Will the Sample Grabber support at least these many transformations? Or will I have to write my own custom filters? Many of the webcams seem to have multiple format output. When I connect Sample Grabber whose media type is Set to I420, will the Sample

I have an Adobe Air Flash, Action script 3.0 application. I need to save the webcam (or rather a series of bitmap as frames) to a video file. The video file needs to be compressed and needs to save as the frames go. AIR/Flash don't give you access to any local video encoders, so compressing the video is the hard part of this problem. For the rest, grab video frames using the BitmapData.draw() function. You can then draw the text into the same bitmapdata. For uncompressed video, you can do something like this: http://www.joristimmerman.be/wordpress/2008/12/18/flvrecorder-record-to-flv-using-air

I've been facing a problem with the webcam in opencv in python using anaconda. The problem is the following: I cannot open the webcam if opencv is installed via any of the two: pip install opencv-python (available 3.1,3.2,3.3), or pip install opencv-contrib-python (available 3.2,3.3) However it will work if and only if I install it from conda install opencv (available opencv 3.1) However, some functionality of opencv is only given in newer versions or in the contrib version currently not available via conda. Does anyone have an idea why the pip versions won't work? Update => The Pip Packgage

I want to capture live webcam in the form of video, i am not getin the proper example in the official page documentation of the webcam plugin.How to do so??? Plugin which allows jQuery to read data from a user's webcam or other video capture device http://plugins.jquery.com/project/webcam I got the perfect plugin i wanted Opentok api 来源： https://stackoverflow.com/questions/8208632/i-want-to-capture-a-video-using-jquery-webcam-plugin