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<!DOCTYPE html>
<HTML>
<HEAD>
<TITLE> HTML5调用摄像头实现拍照</ TITLE>
<meta charset =“utf-8”>
<meta name =“viewport”content =“width = device-width,initial-scale = 1”>
</ HEAD>
<BODY>
<video id =“video”autoplay =“”style ='width:640px; height:480px'> </ video>
<button id =“paizhao”>拍照</ button>
<canvas id =“canvas”width =“640”height =“480”> </ canvas>
<script type =“text / javascript”>
var video = document.getElementById(“video”);
var context = canvas.getContext(“2d”);
var errocb = function(){
console.log(“sth srong”);
}
如果(navigator.getUserMedia){
navigator.getUserMedia({ “视频”:真},函数(流){
video.src =流;
video.play();
},errocb);
} else if(navigator.webkitGetUserMedia){
navigator.webkitGetUserMedia({ “视频”:真},函数(流){
video.src = window.webkitURL.createObjectURL(流);
video.play();
},errocb);
}
的document.getElementById( “paizhao”)的addEventListener( “点击”,函数(){
context.drawImage(视频,0,0,640,480);
});
</ SCRIPT>
</ BODY>
</ HTML>
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