/**
 * tracking - A modern approach for Computer Vision on the web.
 * @author Eduardo Lundgren <edu@rdo.io>
 * @version v1.1.2
 * @link http://trackingjs.com
 * @license BSD
 */
/* eslint-disable */

!function (t, r) {
    t.tracking = t.tracking || {},
        tracking.inherits = function (t, r) {
            function n() { }
            n.prototype = r.prototype,
                t.superClass_ = r.prototype,
                t.prototype = new n,
                t.prototype.constructor = t,
                t.base = function (t, n) {
                    var e = Array.prototype.slice.call(arguments, 2);
                    return r.prototype[n].apply(t, e)
                }
        }
        ,
        tracking.initUserMedia_ = function (r, n) {
            var option=n
            t.navigator.getUserMedia({
                video: !0,
                audio: !(!n || !n.audio)
            }, function (n) {
                try {
                    r.src = t.URL.createObjectURL(n)
                } catch (e) {
                    r.src = n
                }
                r.srcObject = n
                if (option.vue && !option.vue.visible) {
                    var tracks = n.getVideoTracks()
                    tracks.length > 0 && (tracks.forEach(i => i.stop()))
                }
            }, function () {
                throw Error("Cannot capture user camera.")
            })
        }
        ,
        tracking.isNode = function (t) {
            return t.nodeType || this.isWindow(t)
        }
        ,
        tracking.isWindow = function (t) {
            return !!(t && t.alert && t.document)
        }
        ,
        tracking.one = function (t, r) {
            return this.isNode(t) ? t : (r || document).querySelector(t)
        }
        ,
        tracking.track = function (t, r, n) {
            if (t = tracking.one(t),
                !t)
                throw new Error("Element not found, try a different element or selector.");
            if (!r)
                throw new Error("Tracker not specified, try `tracking.track(element, new tracking.FaceTracker())`.");
            switch (t.nodeName.toLowerCase()) {
                case "canvas":
                    return this.trackCanvas_(t, r, n);
                case "img":
                    return this.trackImg_(t, r, n);
                case "video":
                    return n && n.camera && this.initUserMedia_(t, n),
                        this.trackVideo_(t, r, n);
                default:
                    throw new Error("Element not supported, try in a canvas, img, or video.")
            }
        }
        ,
        tracking.trackCanvas_ = function (t, r) {
            var n = this
                , e = new tracking.TrackerTask(r);
            return e.on("run", function () {
                n.trackCanvasInternal_(t, r)
            }),
                e.run()
        }
        ,
        tracking.trackCanvasInternal_ = function (t, r) {
            var n = t.width
                , e = t.height
                , i = t.getContext("2d")
                , a = i.getImageData(0, 0, n, e);
            r.track(a.data, n, e)
        }
        ,
        tracking.trackImg_ = function (t, r) {
            var n = t.width
                , e = t.height
                , i = document.createElement("canvas");
            i.width = n,
                i.height = e;
            var a = new tracking.TrackerTask(r);
            return a.on("run", function () {
                tracking.Canvas.loadImage(i, t.src, 0, 0, n, e, function () {
                    tracking.trackCanvasInternal_(i, r)
                })
            }),
                a.run()
        }
        ,
        tracking.trackVideo_ = function (r, n) {
            var e, i, a = document.createElement("canvas"), o = a.getContext("2d"), c = function () {
                e = r.offsetWidth,
                    i = r.offsetHeight,
                    a.width = e,
                    a.height = i
            };
            c(),
                r.addEventListener("resize", c);
            var s, stopRequestAnimationFrame = false, g = function () {
                if (stopRequestAnimationFrame)
                    return;
                s = t.requestAnimationFrame(function () {
                    if (r.readyState === r.HAVE_ENOUGH_DATA) {
                        try {
                            o.drawImage(r, 0, 0, e, i)
                        } catch (t) { }
                        tracking.trackCanvasInternal_(a, n)
                    }
                    g()
                })
            }, h = new tracking.TrackerTask(n);
            return h.on("stop", function () {
                stopRequestAnimationFrame = true;
                t.cancelAnimationFrame(s)
            }),
                h.on("run", function () {
                    g()
                }),
                h.run()
        }
        ,
        t.URL || (t.URL = t.URL || t.webkitURL || t.msURL || t.oURL),
        navigator.getUserMedia || (navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia)
}(window),
    function () {
        tracking.EventEmitter = function () { }
            ,
            tracking.EventEmitter.prototype.events_ = null,
            tracking.EventEmitter.prototype.addListener = function (t, r) {
                if ("function" != typeof r)
                    throw new TypeError("Listener must be a function");
                return this.events_ || (this.events_ = {}),
                    this.emit("newListener", t, r),
                    this.events_[t] || (this.events_[t] = []),
                    this.events_[t].push(r),
                    this
            }
            ,
            tracking.EventEmitter.prototype.listeners = function (t) {
                return this.events_ && this.events_[t]
            }
            ,
            tracking.EventEmitter.prototype.emit = function (t) {
                var r = this.listeners(t);
                if (r) {
                    for (var n = Array.prototype.slice.call(arguments, 1), e = 0; e < r.length; e++)
                        r[e] && r[e].apply(this, n);
                    return !0
                }
                return !1
            }
            ,
            tracking.EventEmitter.prototype.on = tracking.EventEmitter.prototype.addListener,
            tracking.EventEmitter.prototype.once = function (t, r) {
                var n = this;
                n.on(t, function e() {
                    n.removeListener(t, e),
                        r.apply(this, arguments)
                })
            }
            ,
            tracking.EventEmitter.prototype.removeAllListeners = function (t) {
                return this.events_ ? (t ? delete this.events_[t] : delete this.events_,
                    this) : this
            }
            ,
            tracking.EventEmitter.prototype.removeListener = function (t, r) {
                if ("function" != typeof r)
                    throw new TypeError("Listener must be a function");
                if (!this.events_)
                    return this;
                var n = this.listeners(t);
                if (Array.isArray(n)) {
                    var e = n.indexOf(r);
                    if (0 > e)
                        return this;
                    n.splice(e, 1)
                }
                return this
            }
            ,
            tracking.EventEmitter.prototype.setMaxListeners = function () {
                throw new Error("Not implemented")
            }
    }(),
    function () {
        tracking.Canvas = {},
            tracking.Canvas.loadImage = function (t, r, n, e, i, a, o) {
                var c = this
                    , s = new window.Image;
                s.crossOrigin = "*",
                    s.onload = function () {
                        var r = t.getContext("2d");
                        t.width = i,
                            t.height = a,
                            r.drawImage(s, n, e, i, a),
                            o && o.call(c),
                            s = null
                    }
                    ,
                    s.src = r
            }
    }(),
    function () {
        tracking.DisjointSet = function (t) {
            if (void 0 === t)
                throw new Error("DisjointSet length not specified.");
            this.length = t,
                this.parent = new Uint32Array(t);
            for (var r = 0; t > r; r++)
                this.parent[r] = r
        }
            ,
            tracking.DisjointSet.prototype.length = null,
            tracking.DisjointSet.prototype.parent = null,
            tracking.DisjointSet.prototype.find = function (t) {
                return this.parent[t] === t ? t : this.parent[t] = this.find(this.parent[t])
            }
            ,
            tracking.DisjointSet.prototype.union = function (t, r) {
                var n = this.find(t)
                    , e = this.find(r);
                this.parent[n] = e
            }
    }(),
    function () {
        tracking.Image = {},
            tracking.Image.blur = function (t, r, n, e) {
                if (e = Math.abs(e),
                    1 >= e)
                    throw new Error("Diameter should be greater than 1.");
                for (var i = e / 2, a = Math.ceil(e) + (1 - Math.ceil(e) % 2), o = new Float32Array(a), c = (i + .5) / 3, s = c * c, g = 1 / Math.sqrt(2 * Math.PI * s), h = -1 / (2 * c * c), k = 0, u = Math.floor(a / 2), f = 0; a > f; f++) {
                    var l = f - u
                        , p = g * Math.exp(l * l * h);
                    o[f] = p,
                        k += p
                }
                for (var v = 0; v < o.length; v++)
                    o[v] /= k;
                return this.separableConvolve(t, r, n, o, o, !1)
            }
            ,
            tracking.Image.computeIntegralImage = function (t, r, n, e, i, a, o) {
                if (arguments.length < 4)
                    throw new Error("You should specify at least one output array in the order: sum, square, tilted, sobel.");
                var c;
                o && (c = tracking.Image.sobel(t, r, n));
                for (var s = 0; n > s; s++)
                    for (var g = 0; r > g; g++) {
                        var h = s * r * 4 + 4 * g
                            , k = ~~(.299 * t[h] + .587 * t[h + 1] + .114 * t[h + 2]);
                        if (e && this.computePixelValueSAT_(e, r, s, g, k),
                            i && this.computePixelValueSAT_(i, r, s, g, k * k),
                            a) {
                            var u = h - 4 * r
                                , f = ~~(.299 * t[u] + .587 * t[u + 1] + .114 * t[u + 2]);
                            this.computePixelValueRSAT_(a, r, s, g, k, f || 0)
                        }
                        o && this.computePixelValueSAT_(o, r, s, g, c[h])
                    }
            }
            ,
            tracking.Image.computePixelValueRSAT_ = function (t, r, n, e, i, a) {
                var o = n * r + e;
                t[o] = (t[o - r - 1] || 0) + (t[o - r + 1] || 0) - (t[o - r - r] || 0) + i + a
            }
            ,
            tracking.Image.computePixelValueSAT_ = function (t, r, n, e, i) {
                var a = n * r + e;
                t[a] = (t[a - r] || 0) + (t[a - 1] || 0) + i - (t[a - r - 1] || 0)
            }
            ,
            tracking.Image.grayscale = function (t, r, n, e) {
                for (var i = new Uint8ClampedArray(e ? t.length : t.length >> 2), a = 0, o = 0, c = 0; n > c; c++)
                    for (var s = 0; r > s; s++) {
                        var g = .299 * t[o] + .587 * t[o + 1] + .114 * t[o + 2];
                        i[a++] = g,
                            e && (i[a++] = g,
                                i[a++] = g,
                                i[a++] = t[o + 3]),
                            o += 4
                    }
                return i
            }
            ,
            tracking.Image.horizontalConvolve = function (t, r, n, e, i) {
                for (var a = e.length, o = Math.floor(a / 2), c = new Float32Array(r * n * 4), s = i ? 1 : 0, g = 0; n > g; g++)
                    for (var h = 0; r > h; h++) {
                        for (var k = g, u = h, f = 4 * (g * r + h), l = 0, p = 0, v = 0, m = 0, y = 0; a > y; y++) {
                            var d = k
                                , w = Math.min(r - 1, Math.max(0, u + y - o))
                                , T = 4 * (d * r + w)
                                , C = e[y];
                            l += t[T] * C,
                                p += t[T + 1] * C,
                                v += t[T + 2] * C,
                                m += t[T + 3] * C
                        }
                        c[f] = l,
                            c[f + 1] = p,
                            c[f + 2] = v,
                            c[f + 3] = m + s * (255 - m)
                    }
                return c
            }
            ,
            tracking.Image.verticalConvolve = function (t, r, n, e, i) {
                for (var a = e.length, o = Math.floor(a / 2), c = new Float32Array(r * n * 4), s = i ? 1 : 0, g = 0; n > g; g++)
                    for (var h = 0; r > h; h++) {
                        for (var k = g, u = h, f = 4 * (g * r + h), l = 0, p = 0, v = 0, m = 0, y = 0; a > y; y++) {
                            var d = Math.min(n - 1, Math.max(0, k + y - o))
                                , w = u
                                , T = 4 * (d * r + w)
                                , C = e[y];
                            l += t[T] * C,
                                p += t[T + 1] * C,
                                v += t[T + 2] * C,
                                m += t[T + 3] * C
                        }
                        c[f] = l,
                            c[f + 1] = p,
                            c[f + 2] = v,
                            c[f + 3] = m + s * (255 - m)
                    }
                return c
            }
            ,
            tracking.Image.separableConvolve = function (t, r, n, e, i, a) {
                var o = this.verticalConvolve(t, r, n, i, a);
                return this.horizontalConvolve(o, r, n, e, a)
            }
            ,
            tracking.Image.sobel = function (t, r, n) {
                t = this.grayscale(t, r, n, !0);
                for (var e = new Float32Array(r * n * 4), i = new Float32Array([-1, 0, 1]), a = new Float32Array([1, 2, 1]), o = this.separableConvolve(t, r, n, i, a), c = this.separableConvolve(t, r, n, a, i), s = 0; s < e.length; s += 4) {
                    var g = o[s]
                        , h = c[s]
                        , k = Math.sqrt(h * h + g * g);
                    e[s] = k,
                        e[s + 1] = k,
                        e[s + 2] = k,
                        e[s + 3] = 255
                }
                return e
            }
    }(),
    function () {
        tracking.ViolaJones = {},
            tracking.ViolaJones.REGIONS_OVERLAP = .5,
            tracking.ViolaJones.classifiers = {},
            tracking.ViolaJones.detect = function (t, r, n, e, i, a, o, c) {
                var s, g = 0, h = [], k = new Int32Array(r * n), u = new Int32Array(r * n), f = new Int32Array(r * n);
                o > 0 && (s = new Int32Array(r * n)),
                    tracking.Image.computeIntegralImage(t, r, n, k, u, f, s);
                for (var l = c[0], p = c[1], v = e * i, m = v * l | 0, y = v * p | 0; r > m && n > y;) {
                    for (var d = v * a + .5 | 0, w = 0; n - y > w; w += d)
                        for (var T = 0; r - m > T; T += d)
                            o > 0 && this.isTriviallyExcluded(o, s, w, T, r, m, y) || this.evalStages_(c, k, u, f, w, T, r, m, y, v) && (h[g++] = {
                                width: m,
                                height: y,
                                x: T,
                                y: w
                            });
                    v *= i,
                        m = v * l | 0,
                        y = v * p | 0
                }
                return this.mergeRectangles_(h)
            }
            ,
            tracking.ViolaJones.isTriviallyExcluded = function (t, r, n, e, i, a, o) {
                var c = n * i + e
                    , s = c + a
                    , g = c + o * i
                    , h = g + a
                    , k = (r[c] - r[s] - r[g] + r[h]) / (a * o * 255);
                return t > k ? !0 : !1
            }
            ,
            tracking.ViolaJones.evalStages_ = function (t, r, n, e, i, a, o, c, s, g) {
                var h = 1 / (c * s)
                    , k = i * o + a
                    , u = k + c
                    , f = k + s * o
                    , l = f + c
                    , p = (r[k] - r[u] - r[f] + r[l]) * h
                    , v = (n[k] - n[u] - n[f] + n[l]) * h - p * p
                    , m = 1;
                v > 0 && (m = Math.sqrt(v));
                for (var y = t.length, d = 2; y > d;) {
                    for (var w = 0, T = t[d++], C = t[d++]; C--;) {
                        for (var _ = 0, E = t[d++], M = t[d++], x = 0; M > x; x++) {
                            var I, b, O, A, S = a + t[d++] * g + .5 | 0, D = i + t[d++] * g + .5 | 0, R = t[d++] * g + .5 | 0, j = t[d++] * g + .5 | 0, F = t[d++];
                            E ? (I = S - j + R + (D + R + j - 1) * o,
                                b = S + (D - 1) * o,
                                O = S - j + (D + j - 1) * o,
                                A = S + R + (D + R - 1) * o,
                                _ += (e[I] + e[b] - e[O] - e[A]) * F) : (I = D * o + S,
                                    b = I + R,
                                    O = I + j * o,
                                    A = O + R,
                                    _ += (r[I] - r[b] - r[O] + r[A]) * F)
                        }
                        var L = t[d++]
                            , V = t[d++]
                            , U = t[d++];
                        w += L * m > _ * h ? V : U
                    }
                    if (T > w)
                        return !1
                }
                return !0
            }
            ,
            tracking.ViolaJones.mergeRectangles_ = function (t) {
                for (var r = new tracking.DisjointSet(t.length), n = 0; n < t.length; n++)
                    for (var e = t[n], i = 0; i < t.length; i++) {
                        var a = t[i];
                        if (tracking.Math.intersectRect(e.x, e.y, e.x + e.width, e.y + e.height, a.x, a.y, a.x + a.width, a.y + a.height)) {
                            var o = Math.max(e.x, a.x)
                                , c = Math.max(e.y, a.y)
                                , s = Math.min(e.x + e.width, a.x + a.width)
                                , g = Math.min(e.y + e.height, a.y + a.height)
                                , h = (o - s) * (c - g)
                                , k = e.width * e.height
                                , u = a.width * a.height;
                            h / (k * (k / u)) >= this.REGIONS_OVERLAP && h / (u * (k / u)) >= this.REGIONS_OVERLAP && r.union(n, i)
                        }
                    }
                for (var f = {}, l = 0; l < r.length; l++) {
                    var p = r.find(l);
                    f[p] ? (f[p].total++ ,
                        f[p].width += t[l].width,
                        f[p].height += t[l].height,
                        f[p].x += t[l].x,
                        f[p].y += t[l].y) : f[p] = {
                            total: 1,
                            width: t[l].width,
                            height: t[l].height,
                            x: t[l].x,
                            y: t[l].y
                        }
                }
                var v = [];
                return Object.keys(f).forEach(function (t) {
                    var r = f[t];
                    v.push({
                        total: r.total,
                        width: r.width / r.total + .5 | 0,
                        height: r.height / r.total + .5 | 0,
                        x: r.x / r.total + .5 | 0,
                        y: r.y / r.total + .5 | 0
                    })
                }),
                    v
            }
    }(),
    function () {
        tracking.Brief = {},
            tracking.Brief.N = 512,
            tracking.Brief.randomImageOffsets_ = {},
            tracking.Brief.randomWindowOffsets_ = null,
            tracking.Brief.getDescriptors = function (t, r, n) {
                for (var e = new Int32Array((n.length >> 1) * (this.N >> 5)), i = 0, a = this.getRandomOffsets_(r), o = 0, c = 0; c < n.length; c += 2)
                    for (var s = r * n[c + 1] + n[c], g = 0, h = 0, k = this.N; k > h; h++)
                        t[a[g++] + s] < t[a[g++] + s] && (i |= 1 << (31 & h)),
                            h + 1 & 31 || (e[o++] = i,
                                i = 0);
                return e
            }
            ,
            tracking.Brief.match = function (t, r, n, e) {
                for (var i = t.length >> 1, a = n.length >> 1, o = new Array(i), c = 0; i > c; c++) {
                    for (var s = 1 / 0, g = 0, h = 0; a > h; h++) {
                        for (var k = 0, u = 0, f = this.N >> 5; f > u; u++)
                            k += tracking.Math.hammingWeight(r[c * f + u] ^ e[h * f + u]);
                        s > k && (s = k,
                            g = h)
                    }
                    o[c] = {
                        index1: c,
                        index2: g,
                        keypoint1: [t[2 * c], t[2 * c + 1]],
                        keypoint2: [n[2 * g], n[2 * g + 1]],
                        confidence: 1 - s / this.N
                    }
                }
                return o
            }
            ,
            tracking.Brief.reciprocalMatch = function (t, r, n, e) {
                var i = [];
                if (0 === t.length || 0 === n.length)
                    return i;
                for (var a = tracking.Brief.match(t, r, n, e), o = tracking.Brief.match(n, e, t, r), c = 0; c < a.length; c++)
                    o[a[c].index2].index2 === c && i.push(a[c]);
                return i
            }
            ,
            tracking.Brief.getRandomOffsets_ = function (t) {
                if (!this.randomWindowOffsets_) {
                    for (var r = 0, n = new Int32Array(4 * this.N), e = 0; e < this.N; e++)
                        n[r++] = Math.round(tracking.Math.uniformRandom(-15, 16)),
                            n[r++] = Math.round(tracking.Math.uniformRandom(-15, 16)),
                            n[r++] = Math.round(tracking.Math.uniformRandom(-15, 16)),
                            n[r++] = Math.round(tracking.Math.uniformRandom(-15, 16));
                    this.randomWindowOffsets_ = n
                }
                if (!this.randomImageOffsets_[t]) {
                    for (var i = 0, a = new Int32Array(2 * this.N), o = 0; o < this.N; o++)
                        a[i++] = this.randomWindowOffsets_[4 * o] * t + this.randomWindowOffsets_[4 * o + 1],
                            a[i++] = this.randomWindowOffsets_[4 * o + 2] * t + this.randomWindowOffsets_[4 * o + 3];
                    this.randomImageOffsets_[t] = a
                }
                return this.randomImageOffsets_[t]
            }
    }(),
    function () {
        tracking.Fast = {},
            tracking.Fast.THRESHOLD = 40,
            tracking.Fast.circles_ = {},
            tracking.Fast.findCorners = function (t, r, n, e) {
                var i = this.getCircleOffsets_(r)
                    , a = new Int32Array(16)
                    , o = [];
                void 0 === e && (e = this.THRESHOLD);
                for (var c = 3; n - 3 > c; c++)
                    for (var s = 3; r - 3 > s; s++) {
                        for (var g = c * r + s, h = t[g], k = 0; 16 > k; k++)
                            a[k] = t[g + i[k]];
                        this.isCorner(h, a, e) && (o.push(s, c),
                            s += 3)
                    }
                return o
            }
            ,
            tracking.Fast.isBrighter = function (t, r, n) {
                return t - r > n
            }
            ,
            tracking.Fast.isCorner = function (t, r, n) {
                if (this.isTriviallyExcluded(r, t, n))
                    return !1;
                for (var e = 0; 16 > e; e++) {
                    for (var i = !0, a = !0, o = 0; 9 > o; o++) {
                        var c = r[e + o & 15];
                        if (!this.isBrighter(t, c, n) && (a = !1,
                            i === !1))
                            break;
                        if (!this.isDarker(t, c, n) && (i = !1,
                            a === !1))
                            break
                    }
                    if (a || i)
                        return !0
                }
                return !1
            }
            ,
            tracking.Fast.isDarker = function (t, r, n) {
                return r - t > n
            }
            ,
            tracking.Fast.isTriviallyExcluded = function (t, r, n) {
                var e = 0
                    , i = t[8]
                    , a = t[12]
                    , o = t[4]
                    , c = t[0];
                return this.isBrighter(c, r, n) && e++ ,
                    this.isBrighter(o, r, n) && e++ ,
                    this.isBrighter(i, r, n) && e++ ,
                    this.isBrighter(a, r, n) && e++ ,
                    3 > e && (e = 0,
                        this.isDarker(c, r, n) && e++ ,
                        this.isDarker(o, r, n) && e++ ,
                        this.isDarker(i, r, n) && e++ ,
                        this.isDarker(a, r, n) && e++ ,
                        3 > e) ? !0 : !1
            }
            ,
            tracking.Fast.getCircleOffsets_ = function (t) {
                if (this.circles_[t])
                    return this.circles_[t];
                var r = new Int32Array(16);
                return r[0] = -t - t - t,
                    r[1] = r[0] + 1,
                    r[2] = r[1] + t + 1,
                    r[3] = r[2] + t + 1,
                    r[4] = r[3] + t,
                    r[5] = r[4] + t,
                    r[6] = r[5] + t - 1,
                    r[7] = r[6] + t - 1,
                    r[8] = r[7] - 1,
                    r[9] = r[8] - 1,
                    r[10] = r[9] - t - 1,
                    r[11] = r[10] - t - 1,
                    r[12] = r[11] - t,
                    r[13] = r[12] - t,
                    r[14] = r[13] - t + 1,
                    r[15] = r[14] - t + 1,
                    this.circles_[t] = r,
                    r
            }
    }(),
    function () {
        tracking.Math = {},
            tracking.Math.distance = function (t, r, n, e) {
                var i = n - t
                    , a = e - r;
                return Math.sqrt(i * i + a * a)
            }
            ,
            tracking.Math.hammingWeight = function (t) {
                return t -= t >> 1 & 1431655765,
                    t = (858993459 & t) + (t >> 2 & 858993459),
                    16843009 * (t + (t >> 4) & 252645135) >> 24
            }
            ,
            tracking.Math.uniformRandom = function (t, r) {
                return t + Math.random() * (r - t)
            }
            ,
            tracking.Math.intersectRect = function (t, r, n, e, i, a, o, c) {
                return !(i > n || t > o || a > e || r > c)
            }
    }(),
    function () {
        tracking.Matrix = {},
            tracking.Matrix.forEach = function (t, r, n, e, i) {
                i = i || 1;
                for (var a = 0; n > a; a += i)
                    for (var o = 0; r > o; o += i) {
                        var c = a * r * 4 + 4 * o;
                        e.call(this, t[c], t[c + 1], t[c + 2], t[c + 3], c, a, o)
                    }
            }
    }(),
    function () {
        tracking.EPnP = {},
            tracking.EPnP.solve = function (t, r, n) { }
    }(),
    function () {
        tracking.Tracker = function () {
            tracking.Tracker.base(this, "constructor")
        }
            ,
            tracking.inherits(tracking.Tracker, tracking.EventEmitter),
            tracking.Tracker.prototype.track = function () { }
    }(),
    function () {
        tracking.TrackerTask = function (t) {
            if (tracking.TrackerTask.base(this, "constructor"),
                !t)
                throw new Error("Tracker instance not specified.");
            this.setTracker(t)
        }
            ,
            tracking.inherits(tracking.TrackerTask, tracking.EventEmitter),
            tracking.TrackerTask.prototype.tracker_ = null,
            tracking.TrackerTask.prototype.running_ = !1,
            tracking.TrackerTask.prototype.getTracker = function () {
                return this.tracker_
            }
            ,
            tracking.TrackerTask.prototype.inRunning = function () {
                return this.running_
            }
            ,
            tracking.TrackerTask.prototype.setRunning = function (t) {
                this.running_ = t
            }
            ,
            tracking.TrackerTask.prototype.setTracker = function (t) {
                this.tracker_ = t
            }
            ,
            tracking.TrackerTask.prototype.run = function () {
                var t = this;
                if (!this.inRunning())
                    return this.setRunning(!0),
                        this.reemitTrackEvent_ = function (r) {
                            t.emit("track", r)
                        }
                        ,
                        this.tracker_.on("track", this.reemitTrackEvent_),
                        this.emit("run"),
                        this
            }
            ,
            tracking.TrackerTask.prototype.stop = function () {
                return this.inRunning() ? (this.setRunning(!1),
                    this.emit("stop"),
                    this.tracker_.removeListener("track", this.reemitTrackEvent_),
                    this) : void 0
            }
    }(),
    function () {
        tracking.ColorTracker = function (t) {
            tracking.ColorTracker.base(this, "constructor"),
                "string" == typeof t && (t = [t]),
                t && (t.forEach(function (t) {
                    if (!tracking.ColorTracker.getColor(t))
                        throw new Error('Color not valid, try `new tracking.ColorTracker("magenta")`.')
                }),
                    this.setColors(t))
        }
            ,
            tracking.inherits(tracking.ColorTracker, tracking.Tracker),
            tracking.ColorTracker.knownColors_ = {},
            tracking.ColorTracker.neighbours_ = {},
            tracking.ColorTracker.registerColor = function (t, r) {
                tracking.ColorTracker.knownColors_[t] = r
            }
            ,
            tracking.ColorTracker.getColor = function (t) {
                return tracking.ColorTracker.knownColors_[t]
            }
            ,
            tracking.ColorTracker.prototype.colors = ["magenta"],
            tracking.ColorTracker.prototype.minDimension = 20,
            tracking.ColorTracker.prototype.maxDimension = 1 / 0,
            tracking.ColorTracker.prototype.minGroupSize = 30,
            tracking.ColorTracker.prototype.calculateDimensions_ = function (t, r) {
                for (var n = -1, e = -1, i = 1 / 0, a = 1 / 0, o = 0; r > o; o += 2) {
                    var c = t[o]
                        , s = t[o + 1];
                    i > c && (i = c),
                        c > n && (n = c),
                        a > s && (a = s),
                        s > e && (e = s)
                }
                return {
                    width: n - i,
                    height: e - a,
                    x: i,
                    y: a
                }
            }
            ,
            tracking.ColorTracker.prototype.getColors = function () {
                return this.colors
            }
            ,
            tracking.ColorTracker.prototype.getMinDimension = function () {
                return this.minDimension
            }
            ,
            tracking.ColorTracker.prototype.getMaxDimension = function () {
                return this.maxDimension
            }
            ,
            tracking.ColorTracker.prototype.getMinGroupSize = function () {
                return this.minGroupSize
            }
            ,
            tracking.ColorTracker.prototype.getNeighboursForWidth_ = function (t) {
                if (tracking.ColorTracker.neighbours_[t])
                    return tracking.ColorTracker.neighbours_[t];
                var r = new Int32Array(8);
                return r[0] = 4 * -t,
                    r[1] = 4 * -t + 4,
                    r[2] = 4,
                    r[3] = 4 * t + 4,
                    r[4] = 4 * t,
                    r[5] = 4 * t - 4,
                    r[6] = -4,
                    r[7] = 4 * -t - 4,
                    tracking.ColorTracker.neighbours_[t] = r,
                    r
            }
            ,
            tracking.ColorTracker.prototype.mergeRectangles_ = function (t) {
                for (var r, n = [], e = this.getMinDimension(), i = this.getMaxDimension(), a = 0; a < t.length; a++) {
                    var o = t[a];
                    r = !0;
                    for (var c = a + 1; c < t.length; c++) {
                        var s = t[c];
                        if (tracking.Math.intersectRect(o.x, o.y, o.x + o.width, o.y + o.height, s.x, s.y, s.x + s.width, s.y + s.height)) {
                            r = !1;
                            var g = Math.min(o.x, s.x)
                                , h = Math.min(o.y, s.y)
                                , k = Math.max(o.x + o.width, s.x + s.width)
                                , u = Math.max(o.y + o.height, s.y + s.height);
                            s.height = u - h,
                                s.width = k - g,
                                s.x = g,
                                s.y = h;
                            break
                        }
                    }
                    r && o.width >= e && o.height >= e && o.width <= i && o.height <= i && n.push(o)
                }
                return n
            }
            ,
            tracking.ColorTracker.prototype.setColors = function (t) {
                this.colors = t
            }
            ,
            tracking.ColorTracker.prototype.setMinDimension = function (t) {
                this.minDimension = t
            }
            ,
            tracking.ColorTracker.prototype.setMaxDimension = function (t) {
                this.maxDimension = t
            }
            ,
            tracking.ColorTracker.prototype.setMinGroupSize = function (t) {
                this.minGroupSize = t
            }
            ,
            tracking.ColorTracker.prototype.track = function (t, r, n) {
                var e = this
                    , i = this.getColors();
                if (!i)
                    throw new Error('Colors not specified, try `new tracking.ColorTracker("magenta")`.');
                var a = [];
                i.forEach(function (i) {
                    a = a.concat(e.trackColor_(t, r, n, i))
                }),
                    this.emit("track", {
                        data: a
                    })
            }
            ,
            tracking.ColorTracker.prototype.trackColor_ = function (n, e, i, a) {
                var o, c, s, g, h, k = tracking.ColorTracker.knownColors_[a], u = new Int32Array(n.length >> 2), f = new Int8Array(n.length), l = this.getMinGroupSize(), p = this.getNeighboursForWidth_(e), v = new Int32Array(n.length), m = [], y = -4;
                if (!k)
                    return m;
                for (var d = 0; i > d; d++)
                    for (var w = 0; e > w; w++)
                        if (y += 4,
                            !f[y]) {
                            for (o = 0,
                                h = -1,
                                v[++h] = y,
                                v[++h] = d,
                                v[++h] = w,
                                f[y] = 1; h >= 0;)
                                if (s = v[h--],
                                    c = v[h--],
                                    g = v[h--],
                                    k(n[g], n[g + 1], n[g + 2], n[g + 3], g, c, s)) {
                                    u[o++] = s,
                                        u[o++] = c;
                                    for (var T = 0; T < p.length; T++) {
                                        var C = g + p[T]
                                            , _ = c + t[T]
                                            , E = s + r[T];
                                        !f[C] && _ >= 0 && i > _ && E >= 0 && e > E && (v[++h] = C,
                                            v[++h] = _,
                                            v[++h] = E,
                                            f[C] = 1)
                                    }
                                }
                            if (o >= l) {
                                var M = this.calculateDimensions_(u, o);
                                M && (M.color = a,
                                    m.push(M))
                            }
                        }
                return this.mergeRectangles_(m)
            }
            ,
            tracking.ColorTracker.registerColor("cyan", function (t, r, n) {
                var e = 50
                    , i = 70
                    , a = t - 0
                    , o = r - 255
                    , c = n - 255;
                return r - t >= e && n - t >= i ? !0 : 6400 > a * a + o * o + c * c
            }),
            tracking.ColorTracker.registerColor("magenta", function (t, r, n) {
                var e = 50
                    , i = t - 255
                    , a = r - 0
                    , o = n - 255;
                return t - r >= e && n - r >= e ? !0 : 19600 > i * i + a * a + o * o
            }),
            tracking.ColorTracker.registerColor("yellow", function (t, r, n) {
                var e = 50
                    , i = t - 255
                    , a = r - 255
                    , o = n - 0;
                return t - n >= e && r - n >= e ? !0 : 1e4 > i * i + a * a + o * o
            });
        var t = new Int32Array([-1, -1, 0, 1, 1, 1, 0, -1])
            , r = new Int32Array([0, 1, 1, 1, 0, -1, -1, -1])
    }(),
    function () {
        tracking.ObjectTracker = function (t) {
            tracking.ObjectTracker.base(this, "constructor"),
                t && (Array.isArray(t) || (t = [t]),
                    Array.isArray(t) && t.forEach(function (r, n) {
                        if ("string" == typeof r && (t[n] = tracking.ViolaJones.classifiers[r]),
                            !t[n])
                            throw new Error('Object classifier not valid, try `new tracking.ObjectTracker("face")`.')
                    })),
                this.setClassifiers(t)
        }
            ,
            tracking.inherits(tracking.ObjectTracker, tracking.Tracker),
            tracking.ObjectTracker.prototype.edgesDensity = .2,
            tracking.ObjectTracker.prototype.initialScale = 1,
            tracking.ObjectTracker.prototype.scaleFactor = 1.25,
            tracking.ObjectTracker.prototype.stepSize = 1.5,
            tracking.ObjectTracker.prototype.getClassifiers = function () {
                return this.classifiers
            }
            ,
            tracking.ObjectTracker.prototype.getEdgesDensity = function () {
                return this.edgesDensity
            }
            ,
            tracking.ObjectTracker.prototype.getInitialScale = function () {
                return this.initialScale
            }
            ,
            tracking.ObjectTracker.prototype.getScaleFactor = function () {
                return this.scaleFactor
            }
            ,
            tracking.ObjectTracker.prototype.getStepSize = function () {
                return this.stepSize
            }
            ,
            tracking.ObjectTracker.prototype.track = function (t, r, n) {
                var e = this
                    , i = this.getClassifiers();
                if (!i)
                    throw new Error('Object classifier not specified, try `new tracking.ObjectTracker("face")`.');
                var a = [];
                i.forEach(function (i) {
                    a = a.concat(tracking.ViolaJones.detect(t, r, n, e.getInitialScale(), e.getScaleFactor(), e.getStepSize(), e.getEdgesDensity(), i))
                }),
                    this.emit("track", {
                        data: a
                    })
            }
            ,
            tracking.ObjectTracker.prototype.setClassifiers = function (t) {
                this.classifiers = t
            }
            ,
            tracking.ObjectTracker.prototype.setEdgesDensity = function (t) {
                this.edgesDensity = t
            }
            ,
            tracking.ObjectTracker.prototype.setInitialScale = function (t) {
                this.initialScale = t
            }
            ,
            tracking.ObjectTracker.prototype.setScaleFactor = function (t) {
                this.scaleFactor = t
            }
            ,
            tracking.ObjectTracker.prototype.setStepSize = function (t) {
                this.stepSize = t
            }
    }();