webcam

问题 This question already has an answer here : Access webcam without Flash (1 answer) Closed 6 years ago . I google'd quite a while about this topic, without any satisfying result. Actually my basic question is: Is there any possible way to access a webcam with Javascript ? Maybe with HTML5 ? <video> element ? What are options as developer to access the computers webcam anyway? 回答1: Please see this answer: Access webcam without Flash It is possible with beta browsers but if you want to developer

问题 Can I stream a live video in WPF application from my web cam? If yes, then How? 回答1: You will have to use DirectX Capture or something (is not in WPF right know, so use DirectX API's directly). Look at: WPF Media Kit. It can grab the Vista Windows desktop manager DirectX Direct3D shared Surface, and use it as a visual brush in WPF. He does some nice things with it. Look at his blog where he explains it. I hope this helps you on your way... UPDATE 2009-11-06: The VideoRenderElement Codeplex

问题 I just started Java last week so I'm just getting the fundamentals down at the moment as I have a lot to learn (btw I'm using Eclipse on Ubuntu 11.04 if that helps). However I do a lot of screencasting, and I display my webcam in a lot of the videos that I do. So later on I would like to make a simple app that just displays the webcam. Not anything else. So I'm asking this question now so not only will I remember what my goal is, but also so when I feel I'm ready, and confident to work on

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 7 years ago . 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

问题 How can you access the webcam and microphone in VB.net, assuming the user even has one? I fail to see a My.Computer.Webcam or My.Computer.Microphone, both of which would probably have been a nice addition. Thanks for the help! If there is no easy method for doing this, what is the name of the driver that handles this and what methods should I use to make this work? 回答1: Cyclone, you can use DirectShow .Net Library to access the webcam and microphone here a example Webcam using DirectShow.NET

问题 I want to capture image using jquery webcam plugin. I am able to view the video through the player, but i am not able to capture images. I get "error: Flash movie not yet registered" error. What does this mean? On trying to call webcam.capture function i get an error which says, 'webcam.capture is not a function'. Edit: I'm using this jQuery plugin: http://www.xarg.org/project/jquery-webcam-plugin/ 回答1: The problem is solved in this link: https://github.com/infusion/jQuery-webcam/issues/14.

问题 Hey all i am trying to find the setting to change my video source to "composite" on my webcam. Seems that if i unplug the USB and then plug it back in and fire up the code, its just got a blank screen. But once i change the video source (in another program) and then go back and run my code again, it shows up. So i need something that will allow me to change that in order for that same thing to happen but within my own app without having to start another program that has that feature to set

问题 This question already has answers here : Grabbing snapshots from webcams in ruby (5 answers) Closed 3 years ago . Is there any library in Ruby which I can use to capture the webcam's image? Has to run on GNU/Linux. 回答1: This looks good http://www.wedesoft.demon.co.uk/hornetseye-api/files/HornetsEye-txt.html although I don't have any experience using it. 来源： https://stackoverflow.com/questions/2041882/capture-webcams-image-with-ruby

问题 We are working on flash camera project. We want to ask user to allow or deny camera access first on page load. then after few seconds we want to start camera and take photo. If User deny camera (or flash) access, we do not want to start camera. and If user allows permission for camera (or flash) access, we want to start camera and take photo. For this, We are using "Security.showSettings(SecurityPanel.PRIVACY);". This code is user for ask permission to user about their camera access. So, it

问题 I am currently trying to develop an Android video conference application on a Android TV set-top box. As all of us know, Android TV box does not have a camera and therefore I tried to use a USB web camera but the OS does not recognize the USB camera and is unable to retrieve video feed from it. Is there anyway to make sure my Android application is able to receive video feed from the USB camera? Thank you and sorry if I wrote this question inappropriately, it's my first time using