JSFiddle - React, Tailwind, and code Playground

HTML

<div id="dummy-wrapper">
    <canvas id="dummy-canvas" width="250" height="250" data-src="http://i.imgur.com/w1yg6qo.jpg"></canvas>
</div>

JavaScript

var NameSpace = NameSpace || {};

NameSpace.Pixelator = (function() {

    var _cache = {
        'wrapper' : null,
        'canvas'  : null,
        'ctx'     : null,
        'img'     : new Image()
    },

    _config = {
        'canvasWidth'      : 250,
        'canvasHeight'     : 250,
        'isPlaying'        : false,
        'distortMin'       : 3,
        'distortMax'       : 100,
        'distortValue'     : 100, // matches distortMax by default
        'initDistortValue' : 3,
        'speed'            : 2.5,
        'delta'            : 2.5,   // delta (+/- step), matches speed by default
        'animation'        : null,
        'origImgWidth'     : null,
        'origImgHeight'    : null,
        'imgHeightRatio'   : null,
        'imgWidthRatio'    : null,
        'newImgWidth'      : null,
        'newImgHeight'     : null
    },

    _init = function _init() {

        _setupCache();
        _setupCanvas();
        _setupImage();

    },

    _setupCache = function _setupCache() {

        _cache.wrapper = $('#dummy-wrapper');
        _cache.canvas = document.getElementById('dummy-canvas');
        _cache.ctx = _cache.canvas.getContext('2d');

    },

    _setupCanvas = function _setupCanvas() {

        _cache.ctx.mozImageSmoothingEnabled = false;
        _cache.ctx.webkitImageSmoothingEnabled = false;
        _cache.ctx.imageSmoothingEnabled = false;

    },

    _setupImage = function _setupImage() {

        _cache.img.onload = function() {
            
            _adjustImageScale();
            _pixelate();
            _assignEvents();

        };

        _cache.img.src = _cache.canvas.getAttribute('data-src');

    },

    _adjustImageScale = function _adjustImageScale() {

        var scaledHeight,
            scaledWidth;

        _config.origImgWidth = _cache.img.width;
        _config.origImgHeight = _cache.img.height;
        _config.imgHeightRatio = _config.origImgHeight / _config.origImgWidth;
        _config.imgWidthRatio =...