I have created a custom post type named as images but it isn't showing option of featured image in my wp-admin. I registered my custom post type in functions.php as
function my_custom_post_Images(){
$labels2 = array(
'name' => _x( 'Images', 'post type general name' ),
'singular_name' => _x( 'Image', 'post type singular name' ),
'add_new' => _x( 'Add New', 'Image' ),
'add_new_item' => __( 'Add New Image' ),
'edit_item' => __( 'Edit Image' ),
'new_item' => __( 'New Image' ),
'all_items' => __( 'All Images' ),
'view_item' => __( 'View Image' ),
'search_items' => __( 'Search Images' ),
'not_found' => __( 'No Images found' ),
'not_found_in_trash' => __( 'No Images found in the Trash' ),
'parent_item_colon' => '',
'menu_name' => 'Post Images');
$args2 = array(
'labels' => $labels2,
'description' => 'Displays Images',
'public' => true,
'menu_position' => 3,
'supports' => array('title','editor','thumbnail'),
'has_archive' => true, );
register_post_type( 'Images', $args2 );
}
add_action( 'init', 'my_custom_post_Images' );