我删除了默认图像大小，并使用以下代码添加了自定义图像大小：

// Remove default image sizes
function remove_default_image_sizes( $sizes ) {
  
    /* Default WordPress */
    unset( $sizes[ \'thumbnail\' ]);       // Remove Thumbnail (150 x 150 hard cropped)
    unset( $sizes[ \'medium\' ]);          // Remove Medium resolution (300 x 300 max height 300px)
    unset( $sizes[ \'medium_large\' ]);    // Remove Medium Large (added in WP 4.4) resolution (768 x 0 infinite height)
    unset( $sizes[ \'large\' ]);           // Remove Large resolution (1024 x 1024 max height 1024px)

    /* With WooCommerce */
    unset( $sizes[ \'shop_thumbnail\' ]);  // Remove Shop thumbnail (180 x 180 hard cropped)
    unset( $sizes[ \'shop_catalog\' ]);    // Remove Shop catalog (300 x 300 hard cropped)
    unset( $sizes[ \'shop_single\' ]);     // Shop single (600 x 600 hard cropped)

    return $sizes;
    }
  
    add_filter( \'intermediate_image_sizes_advanced\', \'remove_default_image_sizes\' );
//


// post thumbnail sizes
    

    add_action( \'after_setup_theme\', \'vkb_setup_theme\' );
    function vkb_setup_theme() {

        add_theme_support( \'post-thumbnails\' );

        set_post_thumbnail_size( 250, 250, true );

        add_image_size( \'XS\', 128 );
        add_image_size( \'S\', 256 );
        add_image_size( \'M\', 512 );
        add_image_size( \'XL\', 1024 );
    }
//

应该有XS、S、M、XL、Post\\u缩略图和原始大小，即6。

然而，当我上传一个大图像（2898 x 2346）进行测试时，我有9个图像，我还有3个尺寸：-1536x1253，-2048x1671，还有一个命名为-缩放为2560x2088。

为什么我有这些额外的尺寸，我如何才能摆脱它们？非常感谢。

unset( $sizes[\'1536x1536\'] );
unset( $sizes[\'2048x2048\'] );

remove_image_size( \'1536x1536\' );
remove_image_size( \'2048x2048\' );

add_filter( \'big_image_size_threshold\', \'__return_false\' );