PEAR Text_CAPTCHA 1.0.2 stable, Image_Text 0.7.0 beta

$session = new Zend_Session_Namespace('captcha');
        // check for existing phrase in session
        $phrase = null;
        if (isset($session->phrase) && strlen($session->phrase) > 0)
            $phrase = $session->phrase;

        $imageOptions = array(
            'font_size' => 24,
            'font_path' => Zend_Registry::get('config')->paths->data,
//            'font_path' => '/home/denis/NetBeansProjects/gaSolutions/data/',
            'font_file' => 'Ubuntu-RI.ttf',
            'text_color' => '#DDFF99',
            'lines_color' => '#CCEEDD',
            'background_color' => '#555555'
        );

        $options = array(
            'width' => 180,
            'height' => 60,
            'phrase' => $phrase,
            'output' => 'png',
            'imageOptions'=> $imageOptions
        );
$captcha = Text_CAPTCHA::factory('Image');
$captcha->init($options);
$session->phrase = $captcha->getPhrase();
// disable auto-rendering since we're outputting an image
        $this->_helper->viewRenderer->setNoRender();
        header('Content-type: image/png');
//        echo $captcha->getCAPTCHAAsPng();
        echo $captcha->getCAPTCHA();