.co.uk/
assets/
uploads/
image.jpg
In
uploads/ you can add a .htaccess file with x-robots tag
Check to make sure there isn't already a .htaccess file already in this directory though. If there is and it has something added come back and let us know before doing anything.
Assuming there isn't, just add a blank file named .htaccess and add:
<IfModule mod_headers.c>
Header set X-Robots-Tag "noindex"
</IfModule>
Ensure the file is in this folder only, not the site root.
Save and clear any caches you may have. This will add a noindex tag to everything in that directory, only proceed if you are happy about that.
You can check it's working via an external site that will display the http headers for a sample url.
For example:
https://securityheaders.com
and you are looking for a label marked: X-Robots-Tag: noindex
Also check a regular page that you do want indexed to ensure there is no tag present.
You can also check the url in search console under: test live url and it should return 'unable to index: no-index tag
Search console is a bit buggy at the moment so don't be alarmed if it doesn't say that.
To remove existing images (once you have established they are showing a no-index tag) you can request removal via:
https://www.google.com/webmasters/tools/removals
You may find some images take a while to disappear since Google work to their schedule and not yours but, eventually, once the images have been crawled they should go away for good.
More info here:
https://developers.google.com/search/reference/robots_meta_tag
