diff --git a/Generator/CaptchaGenerator.php b/Generator/CaptchaGenerator.php
index c923497..82247e5 100644
--- a/Generator/CaptchaGenerator.php
+++ b/Generator/CaptchaGenerator.php
@@ -14,14 +14,17 @@ class CaptchaGenerator {
         $this->value = $value;
     }
 
-    public function getCode()
+    public function getCode($width = 120, $height = 40)
     {
-        return 'data:image/jpeg;base64,'.base64_encode($this->generate());
+        return 'data:image/jpeg;base64,'.base64_encode($this->generate($width, $height));
     }
-
-    public function generate()
+    
+    /**
+     * Generate the image
+     */
+    public function generate($width, $height)
     {
-        $i = imagecreatetruecolor(120,40);
+        $i = imagecreatetruecolor($width,$height);
 
         $col = imagecolorallocate($i, mt_rand(0,110), mt_rand(0,110), mt_rand(0,110));
 
@@ -83,7 +86,7 @@ class CaptchaGenerator {
         return ob_get_clean();
     }
 
-    function getCol($image, $x, $y)
+    protected function getCol($image, $x, $y)
     {
         $L = imagesx($image);
         $H = imagesy($image);
@@ -92,7 +95,7 @@ class CaptchaGenerator {
         else return imagecolorat($image, $x, $y);
     }
 
-    function getRGB($col) {
+    protected function getRGB($col) {
         return array(
             (int)($col >> 16) & 0xff,
             (int)($col >> 8) & 0xff,
diff --git a/Resources/config/services.yml b/Resources/config/services.yml
index b3d8334..a423810 100755
--- a/Resources/config/services.yml
+++ b/Resources/config/services.yml
@@ -3,6 +3,6 @@ services:
     # captcha type
     captcha.type:
         class: Gregwar\CaptchaBundle\Type\CaptchaType
-        arguments: [@session]
+        arguments: [@session, @service_container]
         tags:
             - { name: form.type, alias: captcha }
diff --git a/Resources/views/captcha.html.twig b/Resources/views/captcha.html.twig
index 7a44969..a3df35c 100644
--- a/Resources/views/captcha.html.twig
+++ b/Resources/views/captcha.html.twig
@@ -1,4 +1,7 @@
 {% block captcha_widget %}
-    <img src="{{ captcha_code }}" title="captcha" width="120" height="40" />
+{% spaceless %}
+    <img src="{{ captcha_code }}" title="captcha" width="{{ captcha_width }}" height="{{ captcha_height }}" />
     {{ form_widget(form) }}
+{% endspaceless %}
 {% endblock %}
+
diff --git a/Type/CaptchaType.php b/Type/CaptchaType.php
index 94ff7cd..48a4d79 100755
--- a/Type/CaptchaType.php
+++ b/Type/CaptchaType.php
@@ -2,13 +2,14 @@
 
 namespace Gregwar\CaptchaBundle\Type;
 
+use Symfony\Component\HttpFoundation\Session;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
 use Symfony\Component\Form\FormView;
 use Symfony\Component\Form\FormInterface;
 use Symfony\Component\Form\AbstractType;
 use Symfony\Component\Form\FormBuilder;
-use Symfony\Bridge\Doctrine\RegistryInterface;
 use Symfony\Component\Form\Exception\FormException;
-use Symfony\Component\HttpFoundation\Session;
 
 use Gregwar\CaptchaBundle\Validator\CaptchaValidator;
 use Gregwar\CaptchaBundle\Generator\CaptchaGenerator;
@@ -20,13 +21,33 @@ use Gregwar\CaptchaBundle\Generator\CaptchaGenerator;
  */
 class CaptchaType extends AbstractType
 {
+    /**
+     * The image height
+     * @var integer
+     */
+    protected $height;
+    
+    /**
+     * The image width
+     * @var integer
+     */
+    protected $width;
+
+    /** 
+     * The session
+     * @var Symfony\Component\HttpFoundation\Session
+     */
+    protected $session;
+    
     private $key = 'captcha';
 
-    protected $session;
 
-    public function __construct(Session $session)
+    public function __construct(Session $session, ContainerInterface $container)
     {
         $this->session = $session;
+        $this->height = $container->getParameter('gregwar_captcha.image.height');
+        $this->width  = $container->getParameter('gregwar_captcha.image.width');
+        
     }
 
     public function buildForm(FormBuilder $builder, array $options)
@@ -40,7 +61,9 @@ class CaptchaType extends AbstractType
     {
         $generator = new CaptchaGenerator($this->generateCaptchaValue());
 
-        $view->set('captcha_code', $generator->getCode());
+        $view->set('captcha_code', $generator->getCode($this->width, $this->height));
+        $view->set('captcha_width', $this->width);
+        $view->set('captcha_height', $this->height);
     }    
 
     public function getParent(array $options)