Display featured image after title but before content on single posts. Change the genesis_hook to your own theme specific hook if needed. You can also change the conditional tag if needed.

Add Featured Image After Post Title

add_action( 'genesis_after_post_title', 'wpsites_after_post_title_featured_image' );
function wpsites_after_post_title_featured_image() {

  if ( is_single() ) return;

	if ( $image = genesis_get_image( 'format=url&size=post-image' ) ) {
		printf( '<a href="%s" rel="bookmark"><img class="post-photo" src="%s" alt="%s" /></a>', get_permalink(), $image, the_title_attribute( 'echo=0' ) );
	}

}