loading images

You can do that using Attachment Uploaded snippet https://github.com/simpliko/wpadverts-snippets/blob/master/attachment-uploaded/attachment-uploaded.php, please read the comments in the file to understand how it actually works.

How to install the snippet you can read here https://github.com/simpliko/wpadverts-snippets/ at the bottom of the page.

Note that this will affect only images added after installing the snippet the images you already have will be displayed in the Media Library.

Note that by default the line which enables hiding images in media library is disabled, you can enabled it by removing comment from line 54 that is by changing line

#add_filter( "ajax_query_attachments_args", "attachment_uploaded_args" );

to

add_filter( "ajax_query_attachments_args", "attachment_uploaded_args" );