an enhanced captcha as helper

[eluser]JOKERz[/eluser]
heres my config. hope it can help you as reference.

Code:

$aCaptchaCfg = array(
          'length'        => 6,
          'img_path'   => 'captcha/',
          'img_url'       => base_url().'captcha/',
          'font_path'  => './system/fonts/',
          'fonts'         => array('Bryant-Bold.ttf','LTe50537.ttf'),
          'font_size'     => '22',
          'img_width'  => '180',
          'img_height' => '60',
          'expiration' => 7200
        );