[Plugin:Taxonomy Images] – Apply_filters problem

Hi guys,

I want to show the pictures relatives to my categories. I try to use functions showed on the plugin page, but no results…

I list all my categories with a foreach, and in this one, show picture for each category.

This is my code, what’s the problem ?

$categories = get_categories('child_of='.$category->cat_ID);
            foreach ($categories as $category)
            {
                $url = apply_filters( 'taxonomy-images-queried-term-image-url', '', array('image_size' => 'full') );
                if ( !empty( $url ) )
                {
                    echo '<div class="item"><img src="' . esc_url( $url ) . '" title="Test" />';
                    echo '<br />' . $category->cat_name . '</div>';
                }
}

[No bumping. If it’s that urgent, consider hiring someone.]