split ColorPack into RGB and HSV filters. updated tests

src/filters/RGB.js

@@ -0,0 +1,56 @@
+(function () {
+  /**
+   * RGB Filter
+   * @function
+   * @memberof Kinetic.Filters
+   * @param {Object} imageData
+   * @author ippo615
+   */
+  Kinetic.Filters.RGB = function (imageData) {
+    var data = imageData.data,
+        nPixels = data.length,
+        red = this.red(),
+        green = this.green(),
+        blue = this.blue(),
+        i, brightness;
+
+    for (i = 0; i < nPixels; i += 4) {
+      brightness = (0.34 * data[i] + 0.5 * data[i + 1] + 0.16 * data[i + 2])/255;
+      data[i    ] = brightness*red; // r
+      data[i + 1] = brightness*green; // g
+      data[i + 2] = brightness*blue; // b
+      data[i + 3] = data[i + 3]; // alpha
+    }
+  };
+
+  Kinetic.Factory.addFilterGetterSetter(Kinetic.Node, 'red', 255);
+  Kinetic.Factory.addFilterGetterSetter(Kinetic.Node, 'green', 0);
+  Kinetic.Factory.addFilterGetterSetter(Kinetic.Node, 'blue', 0);
+
+  /**
+  * get/set filter red value
+  * @name red
+  * @method
+  * @memberof Kinetic.Node.prototype
+  * @param {Integer} red value between 0 and 255
+  * @returns {Integer}
+  */
+
+  /**
+  * get/set filter green value
+  * @name green
+  * @method
+  * @memberof Kinetic.Node.prototype
+  * @param {Integer} green value between 0 and 255
+  * @returns {Integer}
+  */
+
+  /**
+  * get/set filter blue value
+  * @name blue
+  * @method
+  * @memberof Kinetic.Node.prototype
+  * @param {Integer} blue value between 0 and 255
+  * @returns {Integer}
+  */
+})();