webcam

I want to insert an opencv webcam video in kivy. Unfortunately, when I do this and maximize the window the image does not adjust to the screen size. Is there any way to do this ? from kivy.app import App from kivy.uix.image import Image from kivy.clock import Clock from kivy.graphics.texture import Texture import cv2 from kivy.uix.boxlayout import BoxLayout from kivy.uix.gridlayout import GridLayout from kivy.uix.widget import Widget from kivy.uix.button import Button from kivy.lang import Builder from kivy.core.window import Window Window.size=(1000,1000) class KivyCamera(Image): def __init__

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? Cyclone, you can use DirectShow .Net Library to access the webcam and microphone here a example Webcam using DirectShow.NET (Vb .Net) bye. 来源： https://stackoverflow.com/questions/1451627/access-webcam-and-microphone-input-in-vb-net

I have a video element on my page showing webcam stream . Next I have a canvas with functions that takes snapshots and displays images in canvas. Now I need to send this canvas image to server and save it to file with PHP. I combined various tutorials online and ended up with this code below, however the image that is saved on the server folder is just blank, so I guess the PHP file does not properly receive the data to show... please help if you can :) Only The Jquery + AJAX not transmitting the post variable is the problem... here is the code: var int=self.setInterval(function(){snapshot()}

For the people that have experience with OpenCV, are there any webcams that don't work with OpenCV. I am looking into the feasibility of a project and I know I am going to need a high quality feed (1080p), so I am going to need a webcam that is capable of that. So does OpenCV have problems with certain cameras? To be analysing a video feed of that resolution on the fly I am going to need a fast processor, I know this, but will I need a machine that is not consumer available...ie, will an i7 do? Thanks. On Linux, if it's supported by v4l2, it is probably going to work (e.g., my home webcam isn

I'm trying to access a basic webcam (Logitech c270) through opencv python VideoCapture. Unfortunately though, every time I run the program the display screen comes up black. I know the camera works because I can view the video through their software. I am well aware of making sure to put in the waitkey(x) so that's not the issue. I also have this code just in case the index changes: for i in range(4): capture = cv2.VideoCapture(i) if not capture: print "UNABLE TO CAPTURE CAMERA" else: print "taken camera from index: ", i break But it's returned a 0 index each time. And it's the issue is not

I have followed this article here: http://blogs.msdn.com/b/eternalcoding/archive/2013/10/29/how-to-use-specific-winrt-api-from-desktop-apps-capturing-a-photo-using-your-webcam-into-a-wpf-app.aspx And it all works great... but how do I get a preview in WPF? The XAML "CaptureElement" control is not available in WPF. Is there any other way I can get a preview using the MediaCapture API? Why would Microsoft not make this control Available? Late reply, but in case that helps folks in the future: previewing MediaCapture in WPF is difficult but possible. Here is some code sample: https://github.com

I want to list all connected webcams (USB-webcams and internal webcams), using C++, OpenCV 2.4.11, Windows 8.1 and Qt Creator 3.4.2. For me it is enough to get the number of accessible webcams in the following way: VideoCapture videoCapture(0); // Will access my internal laptop webcam. VideoCapture videoCapture(1); // Will access the first connected usb webcam. Here is my code: // Following procedure detects, how many webcams are accessible from 0 on upwards. numberOfDevices = 0; bool noError = true; while (noError) { try { // Check if camera is available. VideoCapture videoCapture