Adding contrast implementation

Config/thumbnails.php

@@ -17,10 +17,13 @@ return [
 //        'brightness' => [
 //            'level' => '50'
 //        ],
-        'colorize' => [
-            'red' => 0,
-            'green' => 0,
-            'blue' => 99
+//        'colorize' => [
+//            'red' => 0,
+//            'green' => 0,
+//            'blue' => 99
+//        ],
+        'contrast' => [
+            'level' => 65
         ]
     ]
 ];

Image/Intervention/Manipulations/Contrast.php

+<?php namespace Modules\Media\Image\Intervention\Manipulations;
+
+use Modules\Media\Image\ImageHandlerInterface;
+
+class Contrast implements ImageHandlerInterface
+{
+    private $defaults = [
+        'level' => 0
+    ];
+
+    /**
+     * Handle the image manipulation request
+     * @param \Intervention\Image\Image $image
+     * @param array $options
+     * @return \Intervention\Image\Image
+     */
+    public function handle($image, $options)
+    {
+        $options = array_merge($this->defaults, $options);
+
+        return $image->contrast($options['level']);
+    }
+}