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set version 0.0.20

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Schneider Roland
2022-12-01 18:34:46 +01:00
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doc/webcamjs/demos/preview.html Normal file
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<!doctype html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>WebcamJS Test Page</title>
<style type="text/css">
body { font-family: Helvetica, sans-serif; }
h2, h3 { margin-top:0; }
form { margin-top: 15px; }
form input { margin-right: 15px; }
#results { float:right; margin:20px; padding:20px; border:1px solid; background:#ccc; }
</style>
</head>
<body>
<div id="results">Your captured image will appear here...</div>
<h1>WebcamJS Test Page</h1>
<h3>Demonstrates 320x240 capture &amp; display with preview mode</h3>
<div id="my_camera"></div>
<!-- First, include the Webcam.js JavaScript Library -->
<script type="text/javascript" src="../webcam.js"></script>
<!-- Configure a few settings and attach camera -->
<script language="JavaScript">
Webcam.set({
width: 320,
height: 240,
image_format: 'jpeg',
jpeg_quality: 90
});
Webcam.attach( '#my_camera' );
</script>
<!-- A button for taking snaps -->
<form>
<div id="pre_take_buttons">
<input type=button value="Take Snapshot" onClick="preview_snapshot()">
</div>
<div id="post_take_buttons" style="display:none">
<input type=button value="&lt; Take Another" onClick="cancel_preview()">
<input type=button value="Save Photo &gt;" onClick="save_photo()" style="font-weight:bold;">
</div>
</form>
<!-- Code to handle taking the snapshot and displaying it locally -->
<script language="JavaScript">
function preview_snapshot() {
// freeze camera so user can preview pic
Webcam.freeze();
// swap button sets
document.getElementById('pre_take_buttons').style.display = 'none';
document.getElementById('post_take_buttons').style.display = '';
}
function cancel_preview() {
// cancel preview freeze and return to live camera feed
Webcam.unfreeze();
// swap buttons back
document.getElementById('pre_take_buttons').style.display = '';
document.getElementById('post_take_buttons').style.display = 'none';
}
function save_photo() {
// actually snap photo (from preview freeze) and display it
Webcam.snap( function(data_uri) {
// display results in page
document.getElementById('results').innerHTML =
'<h2>Here is your image:</h2>' +
'<img src="'+data_uri+'"/>';
// swap buttons back
document.getElementById('pre_take_buttons').style.display = '';
document.getElementById('post_take_buttons').style.display = 'none';
} );
}
</script>
</body>
</html>