define([], function () {
    'use strict';

    /*
 * quantize.js Copyright 2008 Nick Rabinowitz
 * Ported to node.js by Olivier Lesnicki
 * Licensed under the MIT license: http://www.opensource.org/licenses/mit-license.php
 */

    // fill out a couple protovis dependencies
    /*
     * Block below copied from Protovis: http://mbostock.github.com/protovis/
     * Copyright 2010 Stanford Visualization Group
     * Licensed under the BSD License: http://www.opensource.org/licenses/bsd-license.php
     */
    var pv = {
        map: function (array, f) {
            var o = {};
            return f ? array.map(function (d, i) {
                o.index = i;
                return f.call(o, d);
            }) : array.slice();
        },
        naturalOrder: function (a, b) {
            return (a < b) ? -1 : ((a > b) ? 1 : 0);
        },
        sum: function (array, f) {
            var o = {};
            return array.reduce(f ? function (p, d, i) {
                o.index = i;
                return p + f.call(o, d);
            } : function (p, d) {
                return p + d;
            }, 0);
        },
        max: function (array, f) {
            return Math.max.apply(null, f ? pv.map(array, f) : array);
        }
    };

    /**
     * Basic Javascript port of the MMCQ (modified median cut quantization)
     * algorithm from the Leptonica library (http://www.leptonica.com/).
     * Returns a color map you can use to map original pixels to the reduced
     * palette. Still a work in progress.
     * 
     * @author Nick Rabinowitz
     * @example
     
    // array of pixels as [R,G,B] arrays
    var myPixels = [[190,197,190], [202,204,200], [207,214,210], [211,214,211], [205,207,207]
                    // etc
                    ];
    var maxColors = 4;
     
    var cmap = MMCQ.quantize(myPixels, maxColors);
    var newPalette = cmap.palette();
    var newPixels = myPixels.map(function(p) { 
        return cmap.map(p); 
    });
     
     */
    var MMCQ = (function () {
        // private constants
        var sigbits = 5,
            rshift = 8 - sigbits,
            maxIterations = 1000,
            fractByPopulations = 0.75;

        // get reduced-space color index for a pixel

        function getColorIndex(r, g, b) {
            return (r << (2 * sigbits)) + (g << sigbits) + b;
        }

        // Simple priority queue

        function PQueue(comparator) {
            var contents = [],
                sorted = false;

            function sort() {
                contents.sort(comparator);
                sorted = true;
            }

            return {
                push: function (o) {
                    contents.push(o);
                    sorted = false;
                },
                peek: function (index) {
                    if (!sorted) {
                        sort();
                    }
                    if (index === undefined) {
                        index = contents.length - 1;
                    }
                    return contents[index];
                },
                pop: function () {
                    if (!sorted) {
                        sort();
                    }
                    return contents.pop();
                },
                size: function () {
                    return contents.length;
                },
                map: function (f) {
                    return contents.map(f);
                },
                debug: function () {
                    if (!sorted) {
                        sort();
                    }
                    return contents;
                }
            };
        }

        // 3d color space box

        function VBox(r1, r2, g1, g2, b1, b2, histo) {
            var vbox = this;
            vbox.r1 = r1;
            vbox.r2 = r2;
            vbox.g1 = g1;
            vbox.g2 = g2;
            vbox.b1 = b1;
            vbox.b2 = b2;
            vbox.histo = histo;
        }
        VBox.prototype = {
            volume: function (force) {
                var vbox = this;
                if (!vbox._volume || force) {
                    vbox._volume = ((vbox.r2 - vbox.r1 + 1) * (vbox.g2 - vbox.g1 + 1) * (vbox.b2 - vbox.b1 + 1));
                }
                return vbox._volume;
            },
            count: function (force) {
                var vbox = this,
                    histo = vbox.histo;
                if (!vbox._count_set || force) {
                    var npix = 0,
                        i, j, k, index;
                    for (i = vbox.r1; i <= vbox.r2; i++) {
                        for (j = vbox.g1; j <= vbox.g2; j++) {
                            for (k = vbox.b1; k <= vbox.b2; k++) {
                                index = getColorIndex(i, j, k);
                                npix += (histo[index] || 0);
                            }
                        }
                    }
                    vbox._count = npix;
                    vbox._count_set = true;
                }
                return vbox._count;
            },
            copy: function () {
                var vbox = this;
                return new VBox(vbox.r1, vbox.r2, vbox.g1, vbox.g2, vbox.b1, vbox.b2, vbox.histo);
            },
            avg: function (force) {
                var vbox = this,
                    histo = vbox.histo;
                if (!vbox._avg || force) {
                    var ntot = 0,
                        mult = 1 << (8 - sigbits),
                        rsum = 0,
                        gsum = 0,
                        bsum = 0,
                        hval,
                        i, j, k, histoindex;
                    for (i = vbox.r1; i <= vbox.r2; i++) {
                        for (j = vbox.g1; j <= vbox.g2; j++) {
                            for (k = vbox.b1; k <= vbox.b2; k++) {
                                histoindex = getColorIndex(i, j, k);
                                hval = histo[histoindex] || 0;
                                ntot += hval;
                                rsum += (hval * (i + 0.5) * mult);
                                gsum += (hval * (j + 0.5) * mult);
                                bsum += (hval * (k + 0.5) * mult);
                            }
                        }
                    }
                    if (ntot) {
                        vbox._avg = [~~(rsum / ntot), ~~(gsum / ntot), ~~(bsum / ntot)];
                    } else {
                        //console.log('empty box');
                        vbox._avg = [~~(mult * (vbox.r1 + vbox.r2 + 1) / 2), ~~(mult * (vbox.g1 + vbox.g2 + 1) / 2), ~~(mult * (vbox.b1 + vbox.b2 + 1) / 2)];
                    }
                }
                return vbox._avg;
            },
            contains: function (pixel) {
                var vbox = this,
                    rval = pixel[0] >> rshift;
                gval = pixel[1] >> rshift;
                bval = pixel[2] >> rshift;
                return (rval >= vbox.r1 && rval <= vbox.r2 &&
                    gval >= vbox.g1 && gval <= vbox.g2 &&
                    bval >= vbox.b1 && bval <= vbox.b2);
            }
        };

        // Color map

        function CMap() {
            this.vboxes = new PQueue(function (a, b) {
                return pv.naturalOrder(
                    a.vbox.count() * a.vbox.volume(),
                    b.vbox.count() * b.vbox.volume()
                );
            });
        }
        CMap.prototype = {
            push: function (vbox) {
                this.vboxes.push({
                    vbox: vbox,
                    color: vbox.avg()
                });
            },
            palette: function () {
                return this.vboxes.map(function (vb) {
                    return vb.color;
                });
            },
            size: function () {
                return this.vboxes.size();
            },
            map: function (color) {
                var vboxes = this.vboxes;
                for (var i = 0; i < vboxes.size() ; i++) {
                    if (vboxes.peek(i).vbox.contains(color)) {
                        return vboxes.peek(i).color;
                    }
                }
                return this.nearest(color);
            },
            nearest: function (color) {
                var vboxes = this.vboxes,
                    d1, d2, pColor;
                for (var i = 0; i < vboxes.size() ; i++) {
                    d2 = Math.sqrt(
                        Math.pow(color[0] - vboxes.peek(i).color[0], 2) +
                        Math.pow(color[1] - vboxes.peek(i).color[1], 2) +
                        Math.pow(color[2] - vboxes.peek(i).color[2], 2)
                    );
                    if (d2 < d1 || d1 === undefined) {
                        d1 = d2;
                        pColor = vboxes.peek(i).color;
                    }
                }
                return pColor;
            },
            forcebw: function () {
                // XXX: won't  work yet
                var vboxes = this.vboxes;
                vboxes.sort(function (a, b) {
                    return pv.naturalOrder(pv.sum(a.color), pv.sum(b.color));
                });

                // force darkest color to black if everything < 5
                var lowest = vboxes[0].color;
                if (lowest[0] < 5 && lowest[1] < 5 && lowest[2] < 5) {
                    vboxes[0].color = [0, 0, 0];
                }

                // force lightest color to white if everything > 251
                var idx = vboxes.length - 1,
                    highest = vboxes[idx].color;
                if (highest[0] > 251 && highest[1] > 251 && highest[2] > 251) {
                    vboxes[idx].color = [255, 255, 255];
                }
            }
        };

        // histo (1-d array, giving the number of pixels in
        // each quantized region of color space), or null on error

        function getHisto(pixels) {
            var histosize = 1 << (3 * sigbits),
                histo = new Array(histosize),
                index, rval, gval, bval;
            pixels.forEach(function (pixel) {
                rval = pixel[0] >> rshift;
                gval = pixel[1] >> rshift;
                bval = pixel[2] >> rshift;
                index = getColorIndex(rval, gval, bval);
                histo[index] = (histo[index] || 0) + 1;
            });
            return histo;
        }

        function vboxFromPixels(pixels, histo) {
            var rmin = 1000000,
                rmax = 0,
                gmin = 1000000,
                gmax = 0,
                bmin = 1000000,
                bmax = 0,
                rval, gval, bval;
            // find min/max
            pixels.forEach(function (pixel) {
                rval = pixel[0] >> rshift;
                gval = pixel[1] >> rshift;
                bval = pixel[2] >> rshift;
                if (rval < rmin) {
                    rmin = rval;
                }
                else if (rval > rmax) {
                    rmax = rval;
                }
                if (gval < gmin) {
                    gmin = gval;
                }
                else if (gval > gmax) {
                    gmax = gval;
                }
                if (bval < bmin) {
                    bmin = bval;
                }
                else if (bval > bmax) {
                    bmax = bval;
                }
            });
            return new VBox(rmin, rmax, gmin, gmax, bmin, bmax, histo);
        }

        function medianCutApply(histo, vbox) {

            var vBoxCount = vbox.count();

            if (!vBoxCount) {
                return;
            }

            var rw = vbox.r2 - vbox.r1 + 1,
                gw = vbox.g2 - vbox.g1 + 1,
                bw = vbox.b2 - vbox.b1 + 1,
                maxw = pv.max([rw, gw, bw]);
            // only one pixel, no split
            if (vBoxCount === 1) {
                return [vbox.copy()];
            }
            /* Find the partial sum arrays along the selected axis. */
            var total = 0,
                partialsum = [],
                lookaheadsum = [],
                i, j, k, sum, index;
            if (maxw === rw) {
                for (i = vbox.r1; i <= vbox.r2; i++) {
                    sum = 0;
                    for (j = vbox.g1; j <= vbox.g2; j++) {
                        for (k = vbox.b1; k <= vbox.b2; k++) {
                            index = getColorIndex(i, j, k);
                            sum += (histo[index] || 0);
                        }
                    }
                    total += sum;
                    partialsum[i] = total;
                }
            } else if (maxw === gw) {
                for (i = vbox.g1; i <= vbox.g2; i++) {
                    sum = 0;
                    for (j = vbox.r1; j <= vbox.r2; j++) {
                        for (k = vbox.b1; k <= vbox.b2; k++) {
                            index = getColorIndex(j, i, k);
                            sum += (histo[index] || 0);
                        }
                    }
                    total += sum;
                    partialsum[i] = total;
                }
            } else { /* maxw == bw */
                for (i = vbox.b1; i <= vbox.b2; i++) {
                    sum = 0;
                    for (j = vbox.r1; j <= vbox.r2; j++) {
                        for (k = vbox.g1; k <= vbox.g2; k++) {
                            index = getColorIndex(j, k, i);
                            sum += (histo[index] || 0);
                        }
                    }
                    total += sum;
                    partialsum[i] = total;
                }
            }
            partialsum.forEach(function (d, i) {
                lookaheadsum[i] = total - d;
            });

            function doCut(color) {
                var dim1 = color + '1',
                    dim2 = color + '2',
                    left, right, vbox1, vbox2, d2, count2 = 0;
                for (i = vbox[dim1]; i <= vbox[dim2]; i++) {
                    if (partialsum[i] > total / 2) {
                        vbox1 = vbox.copy();
                        vbox2 = vbox.copy();
                        left = i - vbox[dim1];
                        right = vbox[dim2] - i;
                        if (left <= right) {
                            d2 = Math.min(vbox[dim2] - 1, ~~(i + right / 2));
                        }
                        else {
                            d2 = Math.max(vbox[dim1], ~~(i - 1 - left / 2));
                        }
                        // avoid 0-count boxes
                        while (!partialsum[d2]) {
                            d2++;
                        }
                        count2 = lookaheadsum[d2];
                        while (!count2 && partialsum[d2 - 1]) {
                            count2 = lookaheadsum[--d2];
                        }
                        // set dimensions
                        vbox1[dim2] = d2;
                        vbox2[dim1] = vbox1[dim2] + 1;
                        return [vbox1, vbox2];
                    }
                }

            }
            // determine the cut planes
            return maxw === rw ? doCut('r') :
                maxw === gw ? doCut('g') :
                doCut('b');
        }

        function quantize(pixels, maxcolors) {
            // short-circuit
            if (!pixels.length || maxcolors < 2 || maxcolors > 256) {
                // console.log('wrong number of maxcolors');
                return false;
            }

            // XXX: check color content and convert to grayscale if insufficient

            var histo = getHisto(pixels),
                histosize = 1 << (3 * sigbits);

            // check that we aren't below maxcolors already
            var nColors = 0;
            histo.forEach(function () {
                nColors++;
            });
            if (nColors <= maxcolors) {
                // XXX: generate the new colors from the histo and return
            }

            // get the beginning vbox from the colors
            var vbox = vboxFromPixels(pixels, histo),
                pq = new PQueue(function (a, b) {
                    return pv.naturalOrder(a.count(), b.count());
                });
            pq.push(vbox);

            // inner function to do the iteration

            function iter(lh, target) {
                var ncolors = 1,
                    niters = 0,
                    vbox;
                while (niters < maxIterations) {
                    vbox = lh.pop();
                    if (!vbox.count()) { /* just put it back */
                        lh.push(vbox);
                        niters++;
                        continue;
                    }
                    // do the cut
                    var vboxes = medianCutApply(histo, vbox),
                        vbox1 = vboxes[0],
                        vbox2 = vboxes[1];

                    if (!vbox1) {
                        // console.log("vbox1 not defined; shouldn't happen!");
                        return;
                    }
                    lh.push(vbox1);
                    if (vbox2) { /* vbox2 can be null */
                        lh.push(vbox2);
                        ncolors++;
                    }
                    if (ncolors >= target) {
                        return;
                    }
                    if (niters++ > maxIterations) {
                        // console.log("infinite loop; perhaps too few pixels!");
                        return;
                    }
                }
            }

            // first set of colors, sorted by population
            iter(pq, fractByPopulations * maxcolors);
            // console.log(pq.size(), pq.debug().length, pq.debug().slice());

            // Re-sort by the product of pixel occupancy times the size in color space.
            var pq2 = new PQueue(function (a, b) {
                return pv.naturalOrder(a.count() * a.volume(), b.count() * b.volume());
            });
            while (pq.size()) {
                pq2.push(pq.pop());
            }

            // next set - generate the median cuts using the (npix * vol) sorting.
            iter(pq2, maxcolors - pq2.size());

            // calculate the actual colors
            var cmap = new CMap();
            while (pq2.size()) {
                cmap.push(pq2.pop());
            }

            return cmap;
        }

        return {
            quantize: quantize
        };
    })();

    /*
      Vibrant.js
      by Jari Zwarts
    
      Color algorithm class that finds variations on colors in an image.
    
      Credits
      --------
      Lokesh Dhakar (http://www.lokeshdhakar.com) - Created ColorThief
      Google - Palette support library in Android
     */

    var CanvasImage, Swatch, Vibrant,
      bind = function (fn, me) { return function () { return fn.apply(me, arguments); }; },
      slice = [].slice;

    window.Swatch = Swatch = (function () {
        Swatch.prototype.hsl = void 0;

        Swatch.prototype.rgb = void 0;

        Swatch.prototype.population = 1;

        Swatch.yiq = 0;

        function Swatch(rgb, population) {
            this.rgb = rgb;
            this.population = population;
        }

        Swatch.prototype.getHsl = function () {
            if (!this.hsl) {
                this.hsl = Vibrant.rgbToHsl(this.rgb[0], this.rgb[1], this.rgb[2]);
            }
            return this.hsl;
        };

        Swatch.prototype.getPopulation = function () {
            return this.population;
        };

        Swatch.prototype.getRgb = function () {
            return this.rgb;
        };

        Swatch.prototype.getHex = function () {
            return "#" + ((1 << 24) + (this.rgb[0] << 16) + (this.rgb[1] << 8) + this.rgb[2]).toString(16).slice(1, 7);
        };

        Swatch.prototype.getTitleTextColor = function () {
            this._ensureTextColors();
            if (this.yiq < 200) {
                return "#fff";
            } else {
                return "#000";
            }
        };

        Swatch.prototype.getBodyTextColor = function () {
            this._ensureTextColors();
            if (this.yiq < 150) {
                return "#fff";
            } else {
                return "#000";
            }
        };

        Swatch.prototype._ensureTextColors = function () {
            if (!this.yiq) {
                this.yiq = (this.rgb[0] * 299 + this.rgb[1] * 587 + this.rgb[2] * 114) / 1000;
                return this.yiq;
            }
        };

        return Swatch;

    })();

    window.Vibrant = Vibrant = (function () {
        Vibrant.prototype.quantize = MMCQ.quantize;
        Vibrant.prototype._swatches = [];

        Vibrant.prototype.TARGET_DARK_LUMA = 0.26;

        Vibrant.prototype.MAX_DARK_LUMA = 0.45;

        Vibrant.prototype.MIN_LIGHT_LUMA = 0.55;

        Vibrant.prototype.TARGET_LIGHT_LUMA = 0.74;

        Vibrant.prototype.MIN_NORMAL_LUMA = 0.3;

        Vibrant.prototype.TARGET_NORMAL_LUMA = 0.5;

        Vibrant.prototype.MAX_NORMAL_LUMA = 0.7;

        Vibrant.prototype.TARGET_MUTED_SATURATION = 0.3;

        Vibrant.prototype.MAX_MUTED_SATURATION = 0.4;

        Vibrant.prototype.TARGET_VIBRANT_SATURATION = 1;

        Vibrant.prototype.MIN_VIBRANT_SATURATION = 0.35;

        Vibrant.prototype.WEIGHT_SATURATION = 3;

        Vibrant.prototype.WEIGHT_LUMA = 6;

        Vibrant.prototype.WEIGHT_POPULATION = 1;

        Vibrant.prototype.VibrantSwatch = void 0;

        Vibrant.prototype.MutedSwatch = void 0;

        Vibrant.prototype.DarkVibrantSwatch = void 0;

        Vibrant.prototype.DarkMutedSwatch = void 0;

        Vibrant.prototype.LightVibrantSwatch = void 0;

        Vibrant.prototype.LightMutedSwatch = void 0;

        Vibrant.prototype.HighestPopulation = 0;

        function Vibrant(sourceImage, colorCount, quality) {
            this.swatches = bind(this.swatches, this);
            var a, allPixels, b, cmap, g, i, image, imageData, offset, pixelCount, pixels, r;
            if (typeof colorCount === 'undefined') {
                colorCount = 16;
            }
            if (typeof quality === 'undefined') {
                quality = 5;
            }
            image = new CanvasImage(sourceImage);
            try {
                imageData = image.getImageData();
                pixels = imageData.data;
                pixelCount = image.getPixelCount();
                allPixels = [];
                i = 0;
                while (i < pixelCount) {
                    offset = i * 4;
                    r = pixels[offset + 0];
                    g = pixels[offset + 1];
                    b = pixels[offset + 2];
                    a = pixels[offset + 3];
                    if (a >= 125) {
                        if (!(r > 250 && g > 250 && b > 250)) {
                            allPixels.push([r, g, b]);
                        }
                    }
                    i = i + quality;
                }
                cmap = this.quantize(allPixels, colorCount);
                this._swatches = cmap.vboxes.map((function (_this) {
                    return function (vbox) {
                        return new Swatch(vbox.color, vbox.vbox.count());
                    };
                })(this));
                this.maxPopulation = this.findMaxPopulation;
                this.generateVarationColors();
                this.generateEmptySwatches();
            } finally {
                image.removeCanvas();
            }
        }

        Vibrant.prototype.generateVarationColors = function () {
            this.VibrantSwatch = this.findColorVariation(this.TARGET_NORMAL_LUMA, this.MIN_NORMAL_LUMA, this.MAX_NORMAL_LUMA, this.TARGET_VIBRANT_SATURATION, this.MIN_VIBRANT_SATURATION, 1);
            this.LightVibrantSwatch = this.findColorVariation(this.TARGET_LIGHT_LUMA, this.MIN_LIGHT_LUMA, 1, this.TARGET_VIBRANT_SATURATION, this.MIN_VIBRANT_SATURATION, 1);
            this.DarkVibrantSwatch = this.findColorVariation(this.TARGET_DARK_LUMA, 0, this.MAX_DARK_LUMA, this.TARGET_VIBRANT_SATURATION, this.MIN_VIBRANT_SATURATION, 1);
            this.MutedSwatch = this.findColorVariation(this.TARGET_NORMAL_LUMA, this.MIN_NORMAL_LUMA, this.MAX_NORMAL_LUMA, this.TARGET_MUTED_SATURATION, 0, this.MAX_MUTED_SATURATION);
            this.LightMutedSwatch = this.findColorVariation(this.TARGET_LIGHT_LUMA, this.MIN_LIGHT_LUMA, 1, this.TARGET_MUTED_SATURATION, 0, this.MAX_MUTED_SATURATION);
            this.DarkMutedSwatch = this.findColorVariation(this.TARGET_DARK_LUMA, 0, this.MAX_DARK_LUMA, this.TARGET_MUTED_SATURATION, 0, this.MAX_MUTED_SATURATION);
            return this.DarkMutedSwatch;
        };

        Vibrant.prototype.generateEmptySwatches = function () {
            var hsl;
            if (this.VibrantSwatch === void 0) {
                if (this.DarkVibrantSwatch !== void 0) {
                    hsl = this.DarkVibrantSwatch.getHsl();
                    hsl[2] = this.TARGET_NORMAL_LUMA;
                    this.VibrantSwatch = new Swatch(Vibrant.hslToRgb(hsl[0], hsl[1], hsl[2]), 0);
                }
            }
            if (this.DarkVibrantSwatch === void 0) {
                if (this.VibrantSwatch !== void 0) {
                    hsl = this.VibrantSwatch.getHsl();
                    hsl[2] = this.TARGET_DARK_LUMA;
                    this.DarkVibrantSwatch = new Swatch(Vibrant.hslToRgb(hsl[0], hsl[1], hsl[2]), 0);
                    return this.DarkVibrantSwatch;
                }
            }
        };

        Vibrant.prototype.findMaxPopulation = function () {
            var j, len, population, ref, swatch;
            population = 0;
            ref = this._swatches;
            for (j = 0, len = ref.length; j < len; j++) {
                swatch = ref[j];
                population = Math.max(population, swatch.getPopulation());
            }
            return population;
        };

        Vibrant.prototype.findColorVariation = function (targetLuma, minLuma, maxLuma, targetSaturation, minSaturation, maxSaturation) {
            var j, len, luma, max, maxValue, ref, sat, swatch, value;
            max = void 0;
            maxValue = 0;
            ref = this._swatches;
            for (j = 0, len = ref.length; j < len; j++) {
                swatch = ref[j];
                sat = swatch.getHsl()[1];
                luma = swatch.getHsl()[2];
                if (sat >= minSaturation && sat <= maxSaturation && luma >= minLuma && luma <= maxLuma && !this.isAlreadySelected(swatch)) {
                    value = this.createComparisonValue(sat, targetSaturation, luma, targetLuma, swatch.getPopulation(), this.HighestPopulation);
                    if (max === void 0 || value > maxValue) {
                        max = swatch;
                        maxValue = value;
                    }
                }
            }
            return max;
        };

        Vibrant.prototype.createComparisonValue = function (saturation, targetSaturation, luma, targetLuma, population, maxPopulation) {
            return this.weightedMean(this.invertDiff(saturation, targetSaturation), this.WEIGHT_SATURATION, this.invertDiff(luma, targetLuma), this.WEIGHT_LUMA, population / maxPopulation, this.WEIGHT_POPULATION);
        };

        Vibrant.prototype.invertDiff = function (value, targetValue) {
            return 1 - Math.abs(value - targetValue);
        };

        Vibrant.prototype.weightedMean = function () {
            var i, sum, sumWeight, value, values, weight;
            values = 1 <= arguments.length ? slice.call(arguments, 0) : [];
            sum = 0;
            sumWeight = 0;
            i = 0;
            while (i < values.length) {
                value = values[i];
                weight = values[i + 1];
                sum += value * weight;
                sumWeight += weight;
                i += 2;
            }
            return sum / sumWeight;
        };

        Vibrant.prototype.swatches = function () {
            return {
                Vibrant: this.VibrantSwatch,
                Muted: this.MutedSwatch,
                DarkVibrant: this.DarkVibrantSwatch,
                DarkMuted: this.DarkMutedSwatch,
                LightVibrant: this.LightVibrantSwatch,
                LightMuted: this.LightMuted
            };
        };

        Vibrant.prototype.isAlreadySelected = function (swatch) {
            return this.VibrantSwatch === swatch || this.DarkVibrantSwatch === swatch || this.LightVibrantSwatch === swatch || this.MutedSwatch === swatch || this.DarkMutedSwatch === swatch || this.LightMutedSwatch === swatch;
        };

        Vibrant.rgbToHsl = function (r, g, b) {
            var d, h, l, max, min, s;
            r /= 255;
            g /= 255;
            b /= 255;
            max = Math.max(r, g, b);
            min = Math.min(r, g, b);
            h = void 0;
            s = void 0;
            l = (max + min) / 2;
            if (max === min) {
                h = s = 0;
            } else {
                d = max - min;
                s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
                switch (max) {
                    case r:
                        h = (g - b) / d + (g < b ? 6 : 0);
                        break;
                    case g:
                        h = (b - r) / d + 2;
                        break;
                    case b:
                        h = (r - g) / d + 4;
                }
                h /= 6;
            }
            return [h, s, l];
        };

        Vibrant.hslToRgb = function (h, s, l) {
            var b, g, hue2rgb, p, q, r;
            r = void 0;
            g = void 0;
            b = void 0;
            hue2rgb = function (p, q, t) {
                if (t < 0) {
                    t += 1;
                }
                if (t > 1) {
                    t -= 1;
                }
                if (t < 1 / 6) {
                    return p + (q - p) * 6 * t;
                }
                if (t < 1 / 2) {
                    return q;
                }
                if (t < 2 / 3) {
                    return p + (q - p) * (2 / 3 - t) * 6;
                }
                return p;
            };
            if (s === 0) {
                r = g = b = l;
            } else {
                q = l < 0.5 ? l * (1 + s) : l + s - (l * s);
                p = 2 * l - q;
                r = hue2rgb(p, q, h + 1 / 3);
                g = hue2rgb(p, q, h);
                b = hue2rgb(p, q, h - (1 / 3));
            }
            return [r * 255, g * 255, b * 255];
        };

        return Vibrant;

    })();


    /*
      CanvasImage Class
      Class that wraps the html image element and canvas.
      It also simplifies some of the canvas context manipulation
      with a set of helper functions.
      Stolen from https://github.com/lokesh/color-thief
     */

    window.CanvasImage = CanvasImage = (function () {
        function CanvasImage(image) {

            this.canvas = document.createElement('canvas');

            this.context = this.canvas.getContext('2d');

            var originalWidth = image.width;
            var originalHeight = image.height;

            var maxArea = 300 * 300;
            var bitmapArea = originalWidth * originalHeight;
            var scaleRatio = 1;
            if (bitmapArea > maxArea) {
                scaleRatio = maxArea / bitmapArea;
            }

            //console.log(scaleRatio);

            this.width = this.canvas.width = originalWidth * scaleRatio;
            this.height = this.canvas.height = originalHeight * scaleRatio;

            this.context.drawImage(image, 0, 0, originalWidth, originalHeight, 0, 0, this.width, this.height);
        }

        CanvasImage.prototype.getPixelCount = function () {
            return this.width * this.height;
        };

        CanvasImage.prototype.getImageData = function () {
            return this.context.getImageData(0, 0, this.width, this.height);
        };

        CanvasImage.prototype.removeCanvas = function () {
            this.context = null;
            this.canvas = null;
        };

        return CanvasImage;

    })();

});