Added Sketch Module

src/Modules.js

@@ -43,6 +43,7 @@ module.exports = {
   'resize': require('./modules/Resize'),
   'rotate': require('./modules/Rotate'),
   'saturation': require('./modules/Saturation'),
+  'sketch': require('./modules/Sketch'),
   'text-overlay': require('./modules/TextOverlay'),
   'threshold': require('./modules/Threshold'),
   'tint': require('./modules/Tint'),

src/modules/Sketch/Module.js

@@ -0,0 +1,80 @@
+module.exports = function Sketch(options, UI) {
+  // var defaults = require('../../util/getDefaults.js')(require('./info.json'));
+  var output;
+
+
+  function draw(input, callback, progressObj) {
+    progressObj.stop(true);
+    progressObj.overrideFlag = true;
+
+    var defaults = require('../../util/getDefaults.js')(require('./info.json'));
+
+    var step = this;
+    var priorStep = this.getStep(-1);
+    options.channel = options.channel || defaults.channel ;
+    options.thickness = options.thickness || defaults.thickness ;
+
+    var Sketcher = require('./Sketch.js');
+    var getPixels = require('get-pixels');
+    getPixels(priorStep.output.src, function(err, pixels) {
+      // ImagePixels = pixels;
+      var $ = require('jquery'); // To make Blob-analysis work in Node
+      var img = $(priorStep.imgElement);
+      if(Object.keys(img).length === 0){
+        img = $(priorStep.options.step.imgElement);
+      }
+
+      var canvas = document.createElement('canvas');
+      canvas.width = pixels.shape[0];
+      canvas.height = pixels.shape[1];
+
+      var context = canvas.getContext('2d');
+
+
+
+      context.drawImage(img[0], 0, 0);
+
+
+      var sketcher = new Sketcher.Sketcher(canvas.width, canvas.height,options);
+      sketcher.transformCanvas(canvas,options).whenReady(function () {
+
+        function extraManipulation(pixels){
+          context = canvas.getContext('2d');
+
+          var myImageData = context.getImageData(0, 0, canvas.width, canvas.height);
+          pixels.data = myImageData.data;
+
+          return pixels;
+        }
+
+        function output(image, datauri, mimetype, wasmSuccess) {
+          step.output = { src: datauri, format: mimetype, wasmSuccess, useWasm: options.useWasm };
+        }
+
+        return require('../_nomodule/PixelManipulation.js')(input, {
+          output: output,
+          extraManipulation: extraManipulation,
+          format: input.format,
+          image: options.image,
+          inBrowser: options.inBrowser,
+          callback: callback
+        });
+        // return this.pixela;
+      });
+
+    });
+
+
+
+
+
+
+
+  }
+  return {
+    options: options,
+    draw: draw,
+    output: output,
+    UI: UI
+  };
+};