Method getOptions

/**
 * Method to get the list of images field options.
 * Use the filter attribute to specify allowable file extensions.
 *
 * @return  array  The field option objects.
 *
 * @since   1.7.0
 */
protected function getOptions()
{
    // Define the image file type filter.
    $this->fileFilter = '\\.png$|\\.gif$|\\.jpg$|\\.bmp$|\\.ico$|\\.jpeg$|\\.psd$|\\.eps$';
    // Get the field options.
    return parent::getOptions();
}