Assign features images depending on page template

Hi,

How can I register featured images for specific page templates

I tried this but does not work.
I will only register more featured images for default WP posts.

function features_image_2($featured_images) {
	if (is_page_template( 'single-templateA.php' )) {
		$args = array(
				'id' => 'featured-image-2',
				'desc' => 'Test.',
				'label_name' => 'Featured Image 2',
				'label_set' => 'Set Featured Image 2',
				'label_remove' => 'Remove Featured Image 2',
				'label_use' => 'Set Featured Image 2',
				'post_type' => array( 'post' ),
		);

		$featured_images[] = $args;

		return $featured_images;
	}
}
add_filter( 'kdmfi_featured_images', 'features_image_2');