<html>
<body>
<section id="container" class="container">
<div class="controls">
<fieldset class="input-group">
<input type="file" accept="image/*;capture=camera">
<button>Rerun</button>
</fieldset>
</div>
<div id="result_strip">
<ul class="thumbnails"></ul>
</div>
<div id="interactive" class="viewport"><canvas class="imgBuffer" width="800" height="566"></canvas><canvas class="drawingBuffer" width="800" height="566"></canvas><br clear="all"></div>
</section>
<script src="jquery-1.11.0.min.js"></script>
<script src="quagga.min.js" type="text/javascript"></script>
<script src="file_input.js" type="text/javascript"></script>
</body>
</html>
$(function() {
$(".controls button").on("click", function(e) {
var input = document.querySelector(".controls input[type=file]");
if (input.files && input.files.length) {
Quagga.decodeSingle({
inputStream: {
size: 800 // 这里指定图片的大小,需要自己测试一下
},
locator: {
patchSize: "medium",
halfSample: false
},
numOfWorkers: 1,
decoder: {
readers: [{
format: "ean_reader",// 这里指定ean条形码,就是国际13位的条形码
config: {}
}]
},
locate: true,
src: URL.createObjectURL(input.files[0])
}, function(result) {
var code = result.codeResult.code,
$node,
canvas = Quagga.canvas.dom.image;
// 将扫描得到的条形码打印出来
$node = $('<li><div class="thumbnail"><div class="imgWrapper"><img /></div><div class="caption"><h4 class="code"></h4></div></div></li>');
$node.find("img").attr("src", canvas.toDataURL());
$node.find("h4.code").html(code);
$("#result_strip ul.thumbnails").prepend($node);
});
}
});
});
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