Rewritten version of genesis_do_post_image from Going Green Pro

functions.php

<?php
// Rewritten version of genesis_do_post_image from Going Green Pro
// functions.php

//* Remove default post image
remove_action( 'genesis_entry_content', 'genesis_do_post_image', 8 );

//* Add featured image above the entry content
add_action( 'genesis_entry_header', 'going_green_featured_photo', 5 );
function going_green_featured_photo() {
	if ( is_page() || ! genesis_get_option( 'content_archive_thumbnail' ) )
		return;

	if ( $image = genesis_get_image( array( 'format' => 'url', 'size' => genesis_get_option( 'image_size' ) ) ) ) {
		printf( '<div class="featured-image"><img src="%s" alt="%s" /></div>', $image, the_title_attribute( 'echo=0' ) );
	}
}