examples/picture.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
    <title>jQuery FaceDetection Examples</title>
    <link rel="stylesheet" href="css/styles.css">
    <style>
        .picture-container {
            position: relative;
            width: 600px;
            height: auto;
            margin: 20px auto;
            border: 10px solid #fff;
            box-shadow: 0 5px 5px #000;
        }
            .picture {
                display: block;
                width: 100%;
                height: auto;
            }
            
        .face {
            position: absolute;
            border: 2px solid #FFF;
        }
    </style>
</head>
<body>
    <a href="http://facedetection.jaysalvat.com">
        <img class="logo" src="img/logo.svg">
    </a>
    
    <div class="picture-container">
        <img id="picture" class="picture" src="assets/picture.jpg">
    </div>
    
    <a id="try-it" href="#">
        <img class="button-try" src="img/tryit.svg">
    </a>

    <a class="button-visit" href="http://facedetection.jaysalvat.com">Visit the website</a>

    <script src="https://code.jquery.com/jquery-3.2.1.min.js"></script>
    <script src="../dist/jquery.facedetection.js"></script> 
    <script>
        /* global $ */
        $(function () {
            "use strict";
            
            $('#try-it').click(function (e) {
                e.preventDefault();

                $('.face').remove();

                $('#picture').faceDetection({
                    complete: function (faces) {                        
                        for (var i = 0; i < faces.length; i++) {
                            $('<div>', {
                                'class':'face',
                                'css': {
                                    'position': 'absolute',
                                    'left':     faces[i].x * faces[i].scaleX + 'px',
                                    'top':      faces[i].y * faces[i].scaleY + 'px',
                                    'width':    faces[i].width  * faces[i].scaleX + 'px',
                                    'height':   faces[i].height * faces[i].scaleY + 'px'
                                }
                            })
                            .insertAfter(this);
                        }
                    },
                    error:function (code, message) {
                        alert('Error: ' + message);
                    }
                });
            });
        });
    </script>
</body>
</html>