webcam

I have a Logitech webcam (QuickCam Pro for Notebooks), and I'd like to take a snapshot using the cam from a command line. Does it have any command line interface? If not, is there an API that will allow me to build a command line tool like this? jörg You could use OpenCV to build such a command line application yourself. Basically you would use captureFromCam() to initialize the camera and then call QueryFrame() to capture a picture. Should be straightforward. I know this is an old discussion, but maybe you arrived here like I did recently looking for a simple command line app to capture a

I want to stream raw video from a Logitech C920 webcam and while both displaying and saving the video to file using GStreamer 1.0. This works if I stream h264 encoded video from the camera (the camera provides hardware encoded h264), but it fails if I stream raw video from the camera. However, if I only display, or only save to file, streaming raw video works. Why does it work with a h264 video stream but not with a raw video stream? h264 encoded video stream from camera to BOTH display and file (WORKS): gst-launch-1.0 -v v4l2src device=/dev/video0 \ ! video/x-h264,width=640,height=480

I need an open-source Video Gesture Recognition .NET Library/API (in C#). We have a web cam... we move a hand and it causes some events... So I need motion detection for navigation lib/api... Where can I find such a library? I've heard that AForge is pretty awesome (check out the AForge.Vision.Motion namespace). A quick Google query gave me this: Video Hands Gesture Recognition in C# This is also interesting: Video Motion Detection Algorithms in C# OpenCV might be an option. Although it's a C library, there are C# bindings available. It's currently the most complete computer vision library out

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have a requirement of recording video via web cam, on my webpage. What are the available plugins for the same. My website is developed using Ruby on Rails framework Regards, Pankaj 回答1: If an HTML5 solution could be suitable for you, you can take a look to WebRTC (currently supported in Chrome, Firefox and Opera). You can find a good tutorial here: http://www.html5rocks.com/en/tutorials/getusermedia/intro/ 回答2: The first hit on searching "webcam plugin": http://www.xarg.org/project/jquery-webcam-plugin/ As it is using JavaScript it is easy

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I want to stream my webcam from Mac using FFmpeg. First I checked the supported devices using ffmpeg -f avfoundation -list_devices true -i "" Output: [AVFoundation input device @ 0x7fdf1bd03000] AVFoundation video devices: [AVFoundation input device @ 0x7fdf1bd03000] [0] USB 2.0 Camera #2 [AVFoundation input device @ 0x7fdf1bd03000] [1] FaceTime HD Camera [AVFoundation input device @ 0x7fdf1bd03000] [2] Capture screen 0 [AVFoundation input device @ 0x7fdf1bd03000] [3] Capture screen 1 [AVFoundation input device @ 0x7fdf1bd03000] AVFoundation

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have a Logitech webcam (QuickCam Pro for Notebooks), and I'd like to take a snapshot using the cam from a command line. Does it have any command line interface? If not, is there an API that will allow me to build a command line tool like this? 回答1: You could use OpenCV to build such a command line application yourself. Basically you would use captureFromCam() to initialize the camera and then call QueryFrame() to capture a picture. Should be straightforward. 回答2: I know this is an old discussion, but maybe you arrived here like I did