apply_filters( 'image_get_intermediate_size', array $data, int $post_id, string|int[] $size )

Parameters

$data

(array) Array of file relative path, width, and height on success. May also include file absolute path and URL.

$post_id

(int) The ID of the image attachment.

$size

(string|int[]) Requested image size. Can be any registered image size name, or an array of width and height values in pixels (in that order).