public function getImages()
    {
        $result = [];
        if ($this->getImage()) {
            $result[] = $this->getImage();
        }

        if (null == $this->getDOMDocument()) {
            return $result;
        }

        foreach ($this->getDOMDocument()->getElementsByTagName('img') as $img) {
            if ($src = $img->getAttribute('src')) {
                $result[] = $src;
            }
        }

        if ($this->configuration->getFixRelativeURLs()) {
            foreach ($result as &$imgSrc) {
                $imgSrc = $this->toAbsoluteURI($imgSrc);
            }
        }

        $result = array_unique(array_filter($result));

        return $result;
    }